Jurgen Habermas is the thinker readers most often file under the wrong heading. One shelf in the bookshop of ideas holds him as the last Marxist of the Frankfurt School, the second generation’s loyal heir who carried critical theory out of its exile and into the universities of a rebuilt Germany. The neighbouring shelf holds him as a liberal in disguise, a philosopher of parliaments and procedures who kept the vocabulary of emancipation while quietly surrendering everything that made the tradition dangerous. Both filings are made in good faith, both can quote chapter and verse, and both fail for the same reason: they treat his relation to Marx as a matter of loyalty, when it is in fact a matter of engineering. Habermas did not drift away from Marxism, and he did not defect from it. He performed a single, deliberate, fully argued operation on its foundations, replacing the paradigm on which the whole structure rested, and then he rebuilt, over six decades, whatever of the structure the new foundation could still carry. To judge the result, a reader needs the operation specified, not the loyalty assessed.

This profile therefore keeps a double ledger. In one column stand the Marxian commitments Habermas abandoned: labour as the paradigm of human self-formation, the proletariat as the assigned agent of emancipation, the critique of political economy as the theory’s core, the expectation that the capitalist system would break down under its own contradictions. In the other column stand the commitments he retained: the emancipatory intention itself, a successor to the critique of ideology, a theory of how societies learn and change, and a diagnosis of how economic and administrative power deforms everyday life. Between the columns stands the transaction that explains both, the move this profile names the paradigm substitution: the replacement of production by communication as the model of how human beings form themselves and their world. Everything else in his long career, the theory of the public sphere, the reconstruction of historical materialism, the discourse ethics, the legal theory of democracy, reads as bookkeeping after that substitution, entries posted to one column or the other as the new foundation settled.

Two boundaries govern what follows. First, the article treats Habermas strictly as a theorist, through his published work. He has intervened in the public controversies of a long career, in newspapers and lecture halls, and those interventions are part of another record; a profile of the thought takes its evidence from the books and essays where the arguments are made at full length and under full discipline, and it names no party, campaign or dispute from the political calendar. Second, the profile resists the temptation of the label. Whether the word Marxist still applies to him at the end of the ledger is a genuine question with a precise answer, and the answer is worth more than the label, because the same question, asked of any thinker formed inside a tradition he rebuilt, is usually answered with the label and left there. Here it will be answered with the ledger.

The question the profile has to answer

Every profile of a thinker smuggles in a test, usually unannounced: the question the reader is silently promised an answer to. For Habermas the test question is the one put to him in interviews, seminar rooms and examination halls for half a century, and it is the question this series asks of every figure who worked inside the Marxist tradition while revising it. Is he still one of them? The question sounds biographical, a matter of allegiance and temperament, and it invites the useless answers, the yes of the loyalists and the no of the excommunicators. Put properly, it is a theoretical question with a checklist for an answer. A tradition is a set of commitments, not a uniform. Name the commitments, check which survive, and the question answers itself with an exactness that no verdict on the man’s soul could match.

Is Habermas still a Marxist?

Not in the usual sense. He replaced labour with communication as the model of human self-formation, abandoned the proletariat as the historical agent, and gave up the expectation that the system would break down of its own contradictions. He retained an emancipatory intention, a successor to ideology critique, and a reconstructed theory of social evolution.

That compressed answer carries the whole profile in miniature, and each of its clauses is a section below. The first clause states the paradigm substitution. The second and third clauses record the two great abandonments that follow from it, since a theory that no longer grounds self-formation in labour can no longer assign emancipation to the class that labours, and a theory that analyses crisis as something systems displace and manage can no longer promise the breakdown that classical Marxism expected. The final clauses record the retentions, which are not decorative: the intention to emancipate, the suspicion that consciousness is deformed by power and can be undeformed by criticism, and the conviction that history has a direction that can be reconstructed rationally, all survive the operation, translated into the new paradigm’s terms. A reader who holds the compressed answer in mind can watch each book of the career take its place in the ledger, which is the use of a test: it converts a shelf of difficult volumes into an auditable account.

The substitution also explains the feature of his work that puzzles readers arriving from the first generation of the Frankfurt School. Adorno and Horkheimer, his teachers, ended in a critique of reason itself, suspecting that the very instrument of enlightenment carried domination inside it. Habermas, formed by them, assistant to Adorno, heir to their institute, refused that conclusion while accepting much of the evidence for it. The refusal was not optimism of temperament, though his temperament is more sanguine than theirs. It was a consequence of the paradigm. If human self-formation runs through labour alone, then reason is the labourer’s tool, sharpened for mastery over nature and turned, by an intelligible dialectic, against other human beings. If self-formation runs also and irreducibly through communication, through the raising and redeeming of claims between speakers, then reason has a second root that mastery does not exhaust, and the critique of domination can proceed without sawing off the branch on which criticism sits. That is why the theory of communication, which can look like a technical specialty borrowed from linguistics, is in fact the load-bearing wall of the entire edifice. Remove it, and the retentions collapse into nostalgia. Keep it, and the abandonments become intelligible as the price of a foundation that could still hold weight.

The same test, it is worth pausing to note, is the one this series has applied to every successor in the tradition, and the comparisons discipline the present case. Lukacs had kept the paradigm and supplied the agent with a consciousness it did not empirically possess, an imputation that saved the theory by overriding the theorised. The first Frankfurt generation had kept the intention and let the agent go, paying for the honesty with the critique’s practical address. Each successor, that is, preserved the inheritance by sacrificing a different part of it, and the pattern of the sacrifices is the tradition’s real history, more instructive than any narrative of orthodoxy and heresy. Habermas’s sacrifice is the paradigm itself, the one component his predecessors had treated as the inheritance’s untouchable core, and the violence of the choice explains the violence of the reception: to the loyalists he appears as the heir who sold the house to save the family name, to the liberals as the relative who kept the name to dignify the sale. The ledger exists to replace both metaphors with an audit, and the audit’s question is the only one a serious reader finally cares about: whether what the sale purchased, a criticism that can state its own standards without appeal to a guaranteed future, is worth what it cost, a criticism that can no longer promise that the future is on its side. The profile’s evidence is now to be presented, and its verdict reserved for the coda, where the auditor’s signature belongs.

Habermas before the Institute: a formation under a broken sky

He was born on 18 June 1929 in Dusseldorf and grew up in Gummersbach, a small town east of Cologne where his father directed the local chamber of industry and commerce after running a textile business. The formation that matters for the thought begins with the generational fact: he belonged to the cohort of Germans who were children under the Third Reich, old enough to be conscripted into its youth organisations and its collapsing war, too young to bear office in it. In the last phase of the war the teenage Habermas served as a messenger and in auxiliary duties at the western defences, and the experience he returned to throughout his life was the one that followed the collapse: as a boy of fifteen and sixteen he heard the broadcasts of the Nuremberg trials, and the documentary evidence of what the regime had done arrived in his own language, from German witnesses, in a form that could not be filed as enemy propaganda. He described the shock late and plainly: a whole adult world had normalised the criminal, and the discovery reorganised a young man’s relation to every authority his culture offered him, including the philosophical tradition of the universities.

That shock helps explain the double character of the student who matriculated in 1949 and studied at Gottingen, Zurich and Bonn: philosophy, history, psychology, German literature and economics, taken together, as if no single discipline could be trusted alone with the question of how a civilised society had organised barbarism. His doctorate, completed at Bonn in 1954 under Erich Rothacker, treated Schelling, the philosopher in whom German idealism had wrestled with history and evil inside its own system. The dissertation’s theme, the absolute encountering its own negativity in time, is more than a young scholar’s topic. Schelling was the thinker through whom the Marxist tradition’s philosophical grandparents had passed, the bridge from Hegel’s logic to a philosophy of history and material existence, and the early Habermas learned there a habit he never lost: to find, inside a great system’s own tensions, the point where the system itself demands to be carried further by other means.

What did the Schelling dissertation already contain?

A twenty-five-year-old’s study of how idealism’s absolute fails to stay absolute: Schelling’s God develops through a history that includes evil, matter and contraction, so the system itself teaches that truth is a process in time rather than a possession above it, a lesson the later theory of social learning took over almost unchanged.

After the doctorate came the years of the freelance intellectual, journalism for serious newspapers and journals, essays on literature and politics, the hand to mouth existence of the German feuilleton. In 1955 he married Ute Wesselhoeft. A research grant took him to Frankfurt and to the Institute for Social Research, newly returned from American exile, where the encounter that organised his life occurred. He became Adorno’s assistant in 1956, and the provincial journalist was suddenly seated inside the one institution in Germany where Marx’s questions were being asked at full philosophical strength, by men who had fled for their lives from the catastrophe he had watched as a schoolboy. The formation was complete in outline: a generation marked by the collapse, a philosophical training inside idealism’s self-criticism, and an apprenticeship under the first generation of critical theory. What he did with that inheritance, keeping its questions while replacing its engine, is the story the rest of this profile tells.

One more feature of the formation deserves its sentence, because it recurs at every stage of the work. He learned philosophy in a country whose public language had been corrupted at scale, where words had been made to mean their opposites by administrative routine, and where the trials had shown that the corruption was not a metaphor. A thinker so formed does not treat speech as decoration on the real processes of society. He treats the condition of speech, who may speak, what may be said, what counts as a reason, as itself one of the real processes, perhaps the one on which the others silently depend. The theory of communication was not an academic fashion adopted in middle age. It was the systematic form of a lesson his generation learned before it learned anything else: that a society’s ruin and its possible repair both pass through the medium of people talking to one another, and that the medium can be damaged in ways no economic statistic records.

The assistant years: inside the Institute, outside the school

The Institute for Social Research that Habermas joined in 1956 was a survivor. Founded in Frankfurt in the nineteen twenties on a grain merchant’s fortune, driven into exile in 1933, re-established after the war under Horkheimer and Adorno, it carried into the Federal Republic the memory of a Marxism that had expected revolution and received fascism instead. Its directors were famous, difficult and old enough to be his fathers. The young assistant worked on an empirical study of students and politics, published in 1961 with colleagues, which measured the democratic potential of the student body with survey methods his teachers regarded with patrician suspicion. The detail matters because it announced, early, a trait the whole career displays: a willingness to let empirical research correct theoretical expectation, which in the Institute’s own vocabulary belonged to the retained column long before the break with its paradigms was declared.

What did the assistant years give him?

Proximity without discipleship: daily work beside Adorno, access to the exiled school’s full archive of questions, and an early lesson in its limits, since the survey research he ran for the Institute sat awkwardly with its directors’ disdain for empirical method, teaching him which parts of the inheritance were insight and which were habit.

The friction arrived over his habilitation, the postdoctoral qualification German universities require. The manuscript he submitted in Frankfurt was the study of the public sphere that would make his name. Horkheimer, the Institute’s director, received it coldly; the work’s confidence in a bourgeois institution, its relative warmth toward the reasoning public of the eighteenth century, sat badly with the director’s bleaker reading of the same centuries, and there were older quarrels about method and Marx in the background. Habermas withdrew, left the Institute in 1959, and completed the habilitation in 1961 at Marburg under the political scientist Wolfgang Abendroth, himself a Marxist of another, more organisational tradition. The episode is sometimes retailed as an expulsion and sometimes as a liberation. The record supports neither melodrama. It was an institutional parting between a young scholar and an ageing director over a book, conducted correctly, and its consequence was independence: the second generation’s central figure would build his career outside the school’s walls, at Heidelberg from 1961, where Gadamer’s hermeneutics offered a different air, and then, from 1964, in Horkheimer’s own chair at Frankfurt, a succession arranged without rancour, which he held while the Institute’s founders still lived.

The question whether he broke with Adorno deserves its precision, since the two men’s differences are real and their loyalty was also real. There was no personal rupture: correspondence, respect and institutional succession continued until Adorno’s death in 1969. The theoretical distance is another matter, and it widened on schedule with the paradigm substitution. Adorno’s philosophy trusted the object against the concept, the artwork against the system, and treated communication between damaged subjects with profound suspicion. Habermas came to hold that a critique which distrusts communication entirely cannot state its own claim without contradiction, since the critical text itself addresses readers and asks to be understood. That argument, the charge of performative contradiction levelled gently at his own teacher’s legacy, is the hinge on which the whole second generation turns. He did not break with Adorno. He built, beside Adorno’s monument, a different structure on a different foundation, and he spent the rest of his career explaining, usually with filial courtesy and always without retreat, why the new foundation was necessary.

The Heidelberg interlude that followed the parting deserves its sentence in the formation, because the air of Gadamer’s university, devoted to the humanities’ continuity with their tradition, taught the young professor the position he would spend a decade arguing against from within: that understanding is always inheritance before it is criticism. He never ceased to honour the teaching. He also never ceased to insist that inheritances can be prisons with good manners, and the insistence, worked out in the hermeneutics quarrel described below, is the critique of ideology wearing academic dress. The man who took Horkheimer’s chair in 1964 was therefore doubly formed and doubly homeless, too empirical for the Institute’s elders, too critical for the hermeneuticists, too systematic for the journalists who had first employed him, and the homelessness is not a biographical accident but the sociological form of the theory itself, which would spend fifty years refusing every available camp’s terms while accepting every camp’s best arguments as data.

The public sphere: a category with a history

The book that the Frankfurt director had doubted became, on its publication in 1962, the most durable single contribution of Habermas’s career, the study of the structural transformation of the public sphere. Its argument can be stated as a historical sequence with a critical edge. Under the old order, publicity had been representative: power displayed itself before the people, in court ceremony and insignia, and the people were the audience of a splendour they did not join. Against that order, the rising bourgeois society of the seventeenth and eighteenth centuries generated something new, a sphere in which private persons came together as a public and compelled the authorities to legitimate themselves before reasoned discussion. Its institutions are lovingly inventoried: the English coffee houses, the French salons, the German reading societies and table companies, the journals and the press that commerce made cheap. Its principle was startling in context: within the discussion, status was bracketed, the authority of the better argument alone was to count, and matters previously reserved to church and state, religion, literature, the conduct of trade, became general themes open to anyone who could read.

The category of the public sphere is historical, and its author insists on the point in a way his popularisers often drop. This was not a description of how societies communicate in general. It was the portrait of a specific formation, resting on specific conditions: a market economy that made private persons autonomous in their sphere, a state distinguishable from that sphere, a press not yet an industry of opinion manufacture, and a class whose members met, in principle, as equals because their property and education had already made them so in fact. The literary public sphere, where readers argued over novels and criticism, trained the participants for the political one, where the same readers addressed the state. And the principle contained its own expansive promise: the bracketed status, the open access, the rule of the argument, all pointed beyond the bourgeois circle that had invented them, toward a public in which the qualifications of property and sex would themselves become indefensible. The book’s melancholy close records what happened instead. As the franchise widened and organised interests, mass parties, welfare bureaucracies and commercial media grew, the reasoning public thinned into audiences and clienteles, publicity reverted toward display, and the sphere was, in his coinage, refeudalised: managed acclamation replaced discussion, and publicness became a technique of the powers it was meant to discipline.

What does refeudalisation describe?

The reversal by which a public sphere built for discussion returns to the older pattern of display: organised interests and media stage publicity before passive audiences, acclamation replaces argument, and the public becomes once again the spectator of a power that exhibits itself, now with the techniques of advertising rather than heraldry.

Why does a study of coffee houses belong in a series on Marxism at all? Because the book is doing, inside a historical monograph, the work the whole later theory repeats. It identifies a sphere of human association whose medium is communication rather than labour or command, and it judges a social order by the condition of that sphere. The normative standard is drawn from the institution’s own promise, not imported from the critic’s preferences: the public sphere claimed to bracket status and follow the argument, and the criticism holds it to its claim. That procedure, immanent and procedural at once, is the embryo of everything later called communicative. Readers who treat the book as antiquarian, a charming history of salons, miss the manoeuvre. Readers who treat it as the whole of Habermas miss the sequel, in which the category is dismantled, criticised and rebuilt twice over, once by its author’s own revisions and once by the legal theory of his old age.

The transformation chapters give the mechanism of the decline, and they deserve a paragraph of their own because the mechanism, not the lament, is what later media theory inherited. The press that had carried the discussion became an industry that manufactured the discussion’s appearance: advertising fused the editorial and the commercial, public relations arose as the professional production of publicity for organised interests, and the staged event, arranged for its coverage, replaced the event that coverage reported. Political parties and associations underwent the same conversion, addressing their members as publics to be acclimatised rather than as discussants to be convinced, and the state’s own agencies learned to administer their image with the techniques the market had pioneered. Nothing in the mechanism requires conspiracy or decline of character. It follows from the sphere’s own success and scale: once publicity could move millions, the production of publicity became an industry like any other, subject to the same concentration and the same division of labour, and the discussion of the many was quietly replaced by the management of the many’s attention. His teachers’ culture industry analysis supplied the template for the diagnosis, and the pupil’s history supplied what the template lacked, a dated and documented account of the institutional world, coffee house, journal, salon, party press, in which the thing had once been otherwise.

The exclusions inside the ideal, and the revisions their author accepted

No part of the 1962 study has been more thoroughly prosecuted than its silences, and the prosecution was just. The bourgeois public sphere of the coffee houses excluded women almost entirely, excluded the propertyless by construction, and coexisted with a plebeian publicity, in clubs, chapels, taverns and illegal presses, that the book largely passed over. Feminist scholarship made the gendered structure of the ideal impossible to unsee: the bracketing of status had always been easier for those whose status the household had already secured, and the universalism of the reasoning public was proclaimed from inside a sphere that half of humanity could not enter. Historians of the labour movement added the parallel publics of the excluded, with their own papers, rituals and disciplines of discussion, which the category of a single bourgeois sphere could not house. The golden age reading of the book, in which a lost world of rational conversation is mourned, survives only by ignoring what its author wrote about the exclusions and what he later conceded to the critics.

Whom did the bourgeois public sphere leave out?

Almost everyone, by the design of its conditions: women, confined to a private sphere the theory treated as nature; the propertyless, whose lack of education and leisure barred the door the principle declared open; and the plebeian publics of tavern, chapel and illegal press, whose parallel discussions the single category failed to register.

The first great correction from inside his own school came early and set the pattern for the rest. In 1972 Oskar Negt and Alexander Kluge, the one his collaborator and the other his most gifted wayward student, published their study of the public sphere and experience, which argued from his own category against his own history: alongside the bourgeois public sphere there had always stood a proletarian one, rooted not in salons but in the contexts of labour and life from which workers’ experience is made, and systematically blocked, fragmented and bought off by the bourgeois sphere’s industries of consciousness. The book’s loyalty was unmistakable and its dissent total: the master had described one sphere and its decay, where the reality was two spheres and a war. His response, across the following decades, was characteristic of the method this profile keeps encountering, and it should be entered as the revisions’ template: he did not defend the original architecture. He absorbed the correction, pluralised the category, and rebuilt the theory so that the critics’ phenomenon became one of its working parts, a hospitality to refutation that opponents sometimes mistook for elasticity and that the reconstructive method prescribes as a duty.

The revisions matter as much as the criticisms, because they exhibit the retained column’s working method. When the book was reissued in 1990, its author wrote a long new preface engaging the critics one by one. He accepted the feminist correction in substance, accepted the plurality of competing publics against his own earlier single sphere, accepted that the media’s role had been drawn too darkly from the culture industry template of his teachers, and reworked the account of how the sphere’s promise could survive its bourgeois carrier. Two decades later in the theory of law, the public sphere returns transformed: no longer a single salon of the educated but an anarchic network of communication, wild, porous and unsteerable, whose function is to detect problems and generate influence that formal institutions must then convert into decisions. A concept that began as the portrait of an exclusionary ideal ends as the name for the uncontrollable talking of a whole society, with the normativity no longer resting on the virtue of the talkers but on the procedure that filters their talk. The career of this one category, from 1962 to the legal theory, is the paradigm substitution told in miniature: a material institution of the bourgeois world is translated, step by step, into a communicative structure of modern society as such.

Knowledge and human interests: the first system

The book of 1968, Knowledge and Human Interests, attempted the first systematic statement, and it did so in the vocabulary of the old paradigm even while preparing the new one. Its claim is that knowledge is not disinterested at its root. Behind the forms of inquiry stand knowledge-constituting interests, orientations built into the human species’ way of reproducing itself. The empirical and analytic sciences, physics and its kin, embody a technical interest, the interest in predicting and controlling objectified processes. The historical and hermeneutic sciences embody a practical interest, the interest in mutual understanding across traditions and texts. And the critically oriented sciences, of which psychoanalysis and the critique of ideology are the exemplars, embody an emancipatory interest, the interest in freeing the subject from dependencies it does not recognise as its own work. Philosophy’s task, in this scheme, is reflection: to recover for each science the interest that constitutes it, and thereby to rescue reason from the positivist flattening that recognised only the first interest as knowledge at all.

What is a knowledge-constituting interest?

Not a bias and not a motive of the individual researcher: a deep orientation of the species, rooted in its modes of survival, that decides in advance what can count as an object and a finding for a whole family of sciences, control for the sciences of nature, understanding for the sciences of meaning, emancipation for the sciences of critique.

The architecture is instructive even where it failed, and its author came to judge that it had failed in its framing. The scheme still ran on two media, labour and interaction, work upon nature and speech between persons, and it treated them as parallel roots of the human world. That parallelism was the advance over the classical Marxism that knew only labour, and the defect was that the theory could not yet say how the two roots joined, nor ground the emancipatory interest without borrowing from a philosophy of history it was already ceasing to trust. The framework was largely set aside by its author within a few years, its epistemology replaced first by a theory of truth and then by the theory of communication. Yet three of its commitments walked straight into the retained column and never left. Science serves interests and must answer for which ones. Understanding between persons is a form of knowledge with its own rigour, not a soft prelude to the real kind. And reflection, the turning of a form of domination into an object of consciousness, loosens the domination it names, which is the oldest promise of the critique of ideology restated as a method. The first system was scaffolding. The building it was scaffolding for is the subject of the sections after next, and the scaffolding’s design, twin rooted in work and in speech, already shows the substitution under preparation.

The exemplars of the first system: psychoanalysis and the critique of ideology

The epistemology of 1968 stands or falls by its two exemplars, and they repay the close reading this profile has so far deferred, because in them the whole later theory is present in clinical miniature. Psychoanalysis, as he reconstructed it, is the one established science whose object is a systematically distorted communication and whose method is the distortion’s dissolution. The neurotic symptom, on Freud’s own account as he read it, is a piece of privatised language: an experience excommunicated from the patient’s public self-understanding, preserved in a cipher the patient enacts but cannot read, and the analytic cure proceeds by translating the cipher back into the common tongue, whereupon the compulsion it exercised dissolves. The dream, the parapraxis and the transference are stations of one process, the recovery to speech of what speech had been forbidden to hold. Whatever the verdict of later clinical scholarship on the reconstruction’s fidelity to Freud, its systematic point is exact: here is a knowledge that emancipates in the act of knowing, whose criterion of truth is the continuation of a self-formative process it has itself unblocked, and whose practitioner therefore cannot be a neutral technician of the soul.

The critique of ideology is the same science written at the scale of society, and the parallel is not decoration but the argument’s core. A ruling ideology, in the classical account he inherited, is a population’s symptom: a structure of meanings that conceals from those who live by it the conditions of their own life, maintained not by lies, which could be corrected by information, but by a grammar of the sayable that marks certain experiences as unintelligible before they can become claims. The critic’s office copies the analyst’s: to translate the symptom back into the history that produced it, in the presence of the patient, and under the discipline that the translation counts only if the patient can take it up in the first person. Everything in the later theory that puzzles readers, the insistence that validity is bound to the possibility of uncoerced assent, the procedural form of the ethics, the refusal of a vanguard that knows the masses’ interests better than the masses, is this clinical discipline generalised into a theory of society. And everything in the substitution is prefigured in the exemplars’ shared premise, which the mature work states outright: the medium in which domination hides is communication, because the medium in which human beings form themselves is communication, and the cure in both registers is the restoration of a speech from which nothing human need be exiled. The labour paradigm had no exemplar with this shape; its clinical case was the factory, whose sufferer is cured not by translation but by expropriation. Two sciences, two medicines, two paradigms: the profile’s whole subject is contained in the difference.

The middle disputes: positivism, hermeneutics, and science as ideology

A thinker’s positions are often fixed most sharply by his quarrels, and the nineteen sixties gave Habermas three that belong in the record because each one cleared ground for the turn. The first was the positivist dispute in German sociology, opened at a Tubingen conference in 1961, where his teachers and then he himself confronted the critical rationalists, Popper and Albert, over the logic of the social sciences. The quarrel’s surface was method, falsification against dialectics; its depth was the question whether a science of society may take the existing order’s categories as given. His contributions argued that method is never innocent of the interest it serves, and that the price of the rationalists’ clean logic was a decision, unexamined, about what society is for. The second quarrel was with Gadamer, his Heidelberg patron and the master of philosophical hermeneutics, who held that understanding is always carried by tradition and prejudice. Habermas honoured the insight and refused its limit: tradition can be a systematically distorted medium, he argued, a language in which domination has sedimented itself into what looks like authority, and reflection must be able to dissolve what mere participation in the tradition would merely repeat. The critique of ideology here receives its communicative restatement a decade early: domination can live inside grammar and custom, and emancipation requires a standpoint from which the distortion can be seen.

The third document of the middle years is the 1968 essay on technology and science as ideology, aimed with respect at Marcuse, the school’s most famous living member after the founders. Marcuse had suggested that advanced technology itself had become a form of domination and that a qualitatively new science might be imagined. Habermas answered that the diagnosis confused two things: the technical interest is constitutive of the species and cannot be abolished without abolishing the species’ way of life, while what had changed historically was the political use of technical progress to depoliticise the public, replacing questions of the good life with problems of system maintenance. The essay carries the young theory’s signature: the distinction between labour and interaction, drawn from the 1968 book, is applied to show that the pathology of advanced capitalism sits not in its machines but in the shrinking of the sphere where citizens decide together what the machines are for. Readers who want the exact moment at which the student of the Frankfurt School began revising its founding text, Dialectic of Enlightenment, in public and on principle, can find it in these disputes: reason is not one thing with one fate, and the part of it that lives in speech between persons obeys a different logic from the part that masters nature. The school’s philosophy of history, in which enlightenment as such recoils into myth, is quietly replaced by a differentiation. What enlightenment does to nature and what it does to society are separate questions, and conflating them was, on the new account, the first generation’s founding error.

Theory and practice: politics against technocracy

The essay collection of 1963, Theory and Practice, is where the young professor worked out, in historical studies, the distinction on which his whole career would trade. Its studies move from Aristotle’s politics, in which the good life of the citizen was the subject matter of a practical science, through the rupture by which Machiavelli and Hobbes converted politics into a technique of power and self-preservation, to Hegel and Marx, in whom the practical question returns in the displaced form of a philosophy of history. The scholarly itinerary conceals a systematic point that the later work never abandons. Practical questions, questions about how we should live and what we should do together, are not technical questions wearing ceremonial dress. They cannot be answered by expertise, because their answers are not discoveries about the world but decisions about a form of life, and the modern tendency to dissolve the first kind into the second, to let the administration of things replace the deliberation of citizens, is the specific deformation his theory exists to resist. Marx himself, on this reading, half saw the point and half buried it: the critique of political economy recovered the practical question from the classical economists only to re-inter it in a production paradigm that treated the political as the economy’s shadow.

The famous essay of 1968 on the scientisation of politics gives the distinction its institutional form. Where technical problems dominate public business, he argued, three models of the relation between expert and citizen compete. The decisionistic model reserves the final choice to the politician, who decides by an act of will among options the experts prepare, so that values are quarantined in an irrational residue and the citizenry merely ratifies. The technocratic model inverts the hierarchy and lets the expert’s logic rule outright, the politician becoming the agent of an Sachzwang, a constraint of things, in which decisions pretend to have been made by the state of the art. The pragmatistic model, his own, demands a critical interaction: experts advise on the basis of values that public discussion has articulated, and public discussion is itself corrected by knowledge of what is feasible, so that neither will nor technique rules alone and the translation between technical knowledge and practical consciousness becomes a permanent, public, revisable process. The public sphere is the institutional name for that translation when it works, which is why the 1962 study and the 1968 essay are one argument at two altitudes: a society that cannot conduct the translation will be governed, whatever its constitution says, by the model it has drifted into, and the drift is always technocratic.

Enter this in the ledger under retained, with a note on the form of the retention. The classical doctrine of politics, the Aristotelian inheritance that Marxism usually scorned as prehistory, is here recovered as a resource: the idea that citizens deliberating about their common life are exercising a rational capacity, not indulging a preference, is the seed from which the entire theory of communicative action grows. What looks like a detour into the history of political thought is in fact the young theorist prospecting outside the Marxist canon for the category his mature work would need, a rationality of practice that is neither the instrumental reason of the workshop nor the contemplative reason of the schools. He found it where the Frankfurt tradition rarely looked, in the agora rather than the factory. The paradigm substitution has a long prehistory, and this is its first datable stratum: before communication was a paradigm, deliberation was a reproach, held up against a politics that had forgotten how to ask its citizens anything except whether they were satisfied.

The students, the university, and the limits of action

No account of the theorist’s formation is complete without the confrontation that made him famous and miserable in the same season, his collision with the student movement of the late nineteen sixties, because the collision was theoretical before it was personal and its terms are the paradigm’s terms. He had been, at first, the movement’s most distinguished academic ally in Frankfurt: a supporter of university democratisation, an analyst of the authoritarian structures the students opposed, a contributor to their journals and a speaker at their congresses, and his early study of students and politics had taken their democratic potential more seriously than any comparable work of the older generation. The students, for their part, read the public sphere study as a charter. What divided theorist and movement was never the diagnosis but the inference: the movement’s activist wing held that an order so deformed could only be answered by escalating provocation, by actions designed to force the state’s latent violence into visibility, while he held that means are not external to ends in politics, that a democratisation pursued by manipulation and theatrical coercion reproduces, in the movement’s own practice, the strategic relation to persons that the movement existed to abolish.

What did he ask of the protesting students?

That their practice pass their own test: that a movement for democratisation act democratically inside itself, persuade rather than manipulate, refuse the romance of provocation, and treat the university’s reform, not its destruction, as the available school in which a society learns to deliberate about itself.

The sharpest exchange came in June 1967, at a congress in Hannover days after a student demonstrator had been shot dead by a policeman in Berlin, when in the heat of an all-night debate he warned the movement’s most charismatic leader against a voluntarism he characterised, in a phrase he afterwards regretted as unjust, as left fascism. The phrase escaped its context and pursued both men for decades. Its theoretical content, stripped of the insult, is the content of this entire profile: action oriented to success, however emancipatory its banner, belongs to the logic of the system, and a politics that would rather force history than persuade citizens has abandoned, at the level of method, the only ground on which emancipation in his sense can stand. The movement’s theoreticians answered in kind, charging him with capitulating to the institutions, and the estrangement deepened when Frankfurt students occupied the Institute itself in the following winter and the founders called the police, an ending so emblematic that commentary has rarely resisted it. For the ledger the episode is decisive evidence about the retained column’s price list. His commitment to deliberative procedure was not a late liberal varnish applied over the Frankfurt inheritance when the weather changed. It was held, at personal cost and against his own constituency, in the season when holding it was most expensive, which is what distinguishes a theoretical conviction from a temperament. The first generation watched the same events and drew its conclusion about the young; he drew his about action, and the theory of communicative action, whose first volume bears a dedication to the problems of that decade, is in part the systematic deposit of the quarrel.

Legitimation Crisis: the breakdown expectation, retired with honours

The crisis book of 1973 performs, in public, one of the ledger’s largest transfers. Classical Marxism expected capitalism to founder on its economic contradictions, and the expectation had organised a century of strategy. Habermas, analysing the state-managed capitalism of the postwar decades, argued that the economic crisis does not disappear but is displaced. A state that intervenes permanently in the economy absorbs the crisis tendencies into itself and reissues them in political currency: as a rationality crisis, when the administration cannot steer the economy while honouring its promises; as a legitimation crisis, when the loyalty of citizens, which the system needs and cannot itself manufacture, runs short; and behind both, as a motivation crisis, when the cultural traditions that supplied work discipline and civic privatism erode under the very modernisation the system requires. Crisis, in short, migrates upward from the market to the state and from the state to the culture, and at each level it becomes less mechanical and more a matter of meanings that citizens will or will not accept.

What made the crisis book different?

It kept the crisis concept while surrendering the collapse: contradictions are displaced, not resolved, moving from economy to administration to culture, and each displacement is paid for in legitimacy, so the theory predicts chronic instability of loyalty rather than a terminal breakdown with a date attached.

The significance for the ledger is exact. Here is the abandonment of the breakdown expectation, executed not by a liberal who never held it but by the tradition’s own analyst, on the basis of the tradition’s own methods, as a finding about how the object had changed. And here, in the same volume, is the retained column at work: the analysis still treats the order as contradictory, still refuses the system’s own account of itself, still locates the emancipatory interest in the gap between what institutions claim and what they can deliver. Critics who file the crisis book as the moment of defection and critics who file it as continuity both have their evidence. The ledger files it as the place where the two columns can be seen being written simultaneously, in one argument, by one hand: the mechanism abandoned, the intention retained, and the theory’s centre of gravity already shifting from the economy toward the communicative tissue, loyalty, motivation, meaning, in which crises now mature.

The Starnberg decade frames the book. In 1971 Habermas left Frankfurt to direct, with the physicist Carl Friedrich von Weizsacker, a Max Planck institute devoted to the conditions of life in the scientific and technical world, an interdisciplinary workshop of economists, sociologists, jurists and natural scientists. The move startled observers who read it as withdrawal from the fray. It reads better as the construction of a laboratory: the theory of society he was preparing required economics, systems theory and developmental psychology at a level no philosophy faculty could supply, and at Starnberg he assembled the materials for the two great constructions of the following decade, the reconstruction of historical materialism and the theory of communicative action.

Reconstructing historical materialism: history as learning

The essays gathered in 1976 under the programme of a reconstruction of historical materialism carry out the boldest operation in the whole career, because they take the tradition’s central theory, the one that bears its founder’s name, and rebuild it in the open. Reconstruction, in his usage, means taking a theory apart and reassembling it in a form better able to reach its own goals, discarding what the theory’s own development has refuted. What is discarded is the monism of the old model: the picture of history as a single process driven by the development of productive forces, with legal, moral and political forms trailing as superstructure. What replaces it is a theory of social evolution as learning along two dimensions that obey different logics. Societies learn technically, accumulating knowledge that expands their control over nature, and this dimension does behave as the old model said, cumulatively and irreversibly. Societies also learn morally and practically, in their normative structures, in what they count as a justification, an obligation, a person; and this second learning has its own sequence, which he reconstructed with the help of the developmental psychologies of Piaget and Kohlberg, whose stage logics for the individual mind he projected, with stated caution, onto the evolution of worldviews and legal orders.

What are the two dimensions of social learning?

Technical learning, embodied in productive forces, by which societies widen their command over nature; and moral-practical learning, embodied in normative structures, by which they widen the circle of those whose claims count and raise the level at which conflicts must be justified. Neither dimension drives the other on schedule.

The Freudian analogy he favoured for the projection is worth a sentence because it shows the retained column’s fidelity to method over metaphor: just as the individual’s pathologies can be read from the stages of a development that every healthy mind traverses, so a society’s normative structures can be ordered by the logic of the problems they solve, without any claim that history was obliged to traverse them or that any society sits at the sequence’s end. The philosophy of history with a practical intent, the guaranteed ascent, the final reconciliation, is abandoned as thoroughly here as anywhere in the corpus. What is retained is the nerve of historical materialism itself: that forms of consciousness are not free-floating, that they are carried by the material organisation of social life, and that their history is therefore a fit object for a theory that is itself materialist in the modest sense of refusing to let ideas explain themselves.

Two consequences follow for the ledger. First, Marx’s own theory is treated exactly as Marx treated Ricardo’s: as a scientific inheritance to be reconstructed, not a scripture to be glossed, and the treatment is itself the strongest available evidence that the break with classical Marxism was a development inside its method rather than a desertion of it. Second, the door is opened through which the whole later theory walks. If societies learn in the dimension of interaction by raising the level of justification they demand, then the medium of that learning, communication oriented to understanding, is not one social process among others but the mechanism of the species’ moral history. The reconstruction essays are the bridge: on the far side stands the labour paradigm, still honoured, still load-bearing in its dimension; on the near side stands the paradigm of communication, no longer a second root beside the first but the deeper structure in which the first is to be re-situated. The next sections cross that bridge.

The systems quarrel: what a theory of society may not surrender

The Starnberg years opened with a public duel that fixed the alternatives for German social theory for a generation. The 1971 volume jointly authored with Niklas Luhmann, its title posing the choice as theory of society or social technology, set the emerging paradigm of communication against the systems theory that Luhmann was building into the most ambitious alternative account of modern society. The systems view treated society as a self-regulating web of communications whose meaning is exhausted by their function in reducing complexity, and it explicitly renounced the older European ambition to judge the whole from the standpoint of its members. His counter-argument identified the price: a theory that observes society only as systems observe themselves has surrendered, by methodological decision, the participant perspective from which alone questions of legitimacy, distortion and suffering can be so much as posed. The quarrel was courteous, technical and total, and its outcome in his own work is the distinctive settlement that the 1981 volumes enact: systems theory is not refuted but conscripted, its genuine discoveries about media, complexity and functional differentiation imported wholesale into the system half of the theory, while the lifeworld half is reserved as the place from which the whole, systems included, can be criticised by those who must live in it.

The settlement explains a feature of the mature work that baffles readers who come to it from either camp. Functionalists find him a moralist who will not let the systems run; moralists find him a functionalist who has conceded the world to the systems and kept only a reservation for complaint. Both are reading one storey of a two-storey building. The theory’s wager is that a society must be describable in both vocabularies at once because its members are condemned to live in both: as nodes in circuits of money and power that no conversation steers, and as persons who must nevertheless be able to say, to one another and to themselves, what the circuits are doing to their common life. A theory of society that cannot hold both descriptions forfeits either its realism or its critical point. A theory that can hold both has purchased the right to its central diagnostic concept, since colonisation is precisely an event that only the double description can register: invisible from inside the system, where the expansion of steering is registered as growth, and illegible from inside the lifeworld, where it is felt as anomie and loss without a mechanism, it appears only to the theory that keeps both ledgers at once. The metaphor of this profile is, the reader will notice, borrowed from the subject.

Rational reconstruction: the method beneath the books

Underneath every stage of the work runs a method that the work rarely pauses to exhibit, and a profile should exhibit it, since it is the method that survives even readers who reject the conclusions. He calls it rational reconstruction. Its model is the linguist’s grammar: as the linguist reconstructs the rules a competent speaker follows without being able to state them, so the reconstructive sciences reconstruct the intuitive know-how of competent actors in other domains, the stages by which a child masters moral judgement, the presuppositions a speaker masters in raising a claim, the rights citizens must presuppose in constituting a legal order. The results are fallible, revisable by the empirical sciences they borrow from, and universal only in the modest sense that they claim to hold for the competence as such, wherever it is found, until a better reconstruction displaces them. This is the theory’s answer, given in advance, to the charge of armchair philosophy: the reconstructions are hypotheses about structures that developmental psychology, linguistics and sociology can test, and several of them, the Kohlberg stages above all, have been revised under empirical fire in ways the method predicts and absorbs.

The method also fixes the exact sense in which the whole construction is Kantian, a label the subject accepts with a qualification the label usually lacks. Kant is detranscendentalised, in his phrase: the structures that Kant lodged in a transcendental subject, outside history and beyond revision, are relocated into the practices of embodied, socialised, historically situated speakers, where they can be studied empirically and where they change, slowly, as the practices learn. Reason is thereby given a body and a history without being surrendered to either: its claims remain universal in form while its reconstructions remain corrigible in fact. Readers who grasp the method stop asking the theory for the two things it structurally refuses to give, a guarantee and a foundation immune to revision, and start asking the question it can answer: whether a given reconstruction, of a competence, a stage sequence, a system of rights, fits the intuitions and the evidence better than its rivals. The standing dispute about the presuppositions’ innocence, entered in the ledger above as a disputed asset, is a dispute inside this method, about whether one particular reconstruction smuggles its conclusions into its premises, and it is a mark of the method’s honesty that the dispute can be stated in the method’s own terms.

Language enters: universal pragmatics and the three validity claims

The turn to language was prepared through the nineteen seventies in essays on truth, on communicative competence and on what he called universal pragmatics, the programme of reconstructing the general conditions that any competent speaker must master. Its sources were the ordinary language philosophy of Austin and Searle, whose analysis of speech acts showed that speaking is doing, that every utterance performs an action as well as stating a content; the developmental psychology already conscripted for the evolution theory; and behind them, the older insight of Mead and the pragmatists that the self is formed in interaction, that mind is society turned inward. Habermas’s synthesis runs as follows. A speaker who says something to a hearer, in a way meant to be understood, implicitly raises claims that the hearer may accept or contest with reasons. Language oriented to reaching understanding carries rationality inside itself, not as an ideal imposed by philosophers but as a presupposition no participant can coherently deny while still participating. To argue the contrary in earnest, to claim that claims do not matter, is to commit the performative contradiction that the theory uses as its Archimedean point: the sceptic refutes himself in the act of addressing his refutation to an audience.

What are the three validity claims?

Every speech act oriented to understanding raises, together, a claim to truth about the objective world, a claim to rightness about the shared social world, and a claim to sincerity about the speaker’s own subjective world, and criticism proceeds by isolating which of the three has failed and redeeming it with reasons.

From this machinery the concept of communicative rationality is assembled, and its modesty is its strength. It does not promise that people are reasonable, that conversations converge, or that the world is arranged for agreement. It claims only that the practice of giving and asking for reasons contains standards by which its own distortions can be identified: the excluded voice, the suppressed question, the authority that answers in place of an argument, the agreement manufactured by threat or by bribe. Those standards are counterfactual, ideals built into the structure of the practice rather than descriptions of its usual state, and the theory is explicit that actual speech falls short of them as a matter of course. Critics who object that real discussion is nothing like the ideal are therefore agreeing with the theory while believing they refute it. The ideal’s function is diagnostic. It gives criticism a measuring rod that does not have to be imported from the critic’s politics, because it is drawn from what speakers already, unavoidably, presuppose when they mean what they say.

The Theory of Communicative Action: the architecture

The two volumes of 1981 gather the whole construction into a theory of society, and their scale is part of their meaning: this is the second generation’s answer to the question the first generation had left in ruins, why reason and domination had grown together, reformulated so that the answer no longer indicts reason as such. The first volume reconstructs the concept of rationality from the history of social theory, Weber above all, and draws the master distinction. Action oriented to success, in which other persons figure as conditions and obstacles to be calculated, is strategic action, rational in its way and indispensable in its spheres. Action oriented to reaching understanding, in which participants coordinate their plans by recognising claims they could in principle contest, is communicative action, and it is not a rarer or nobler variety but the original mode, since even the liar and the manipulator must parasitically rely on the presumption of sincerity and truth that understanding-oriented speech sustains. The second volume then builds the theory of society on the distinction, taking over the concept of the lifeworld from phenomenology and the concept of the system from the functionalist tradition, and setting the two in relation.

What separates communicative from strategic action?

The orientation of the participants: in communicative action, speakers coordinate by recognising validity claims they remain free to contest, and agreement, when it comes, rests on reasons; in strategic action, each treats the others as features of an environment to be steered, and coordination, when it comes, rests on influence, inducement or threat.

The lifeworld is the horizon of shared meanings within which communicative action moves: the stock of cultural interpretations that supplies what a situation is about, the solidarities that settle who belongs and what is owed, the competences that make a formed person. It reproduces itself through communication itself, in the three tasks of transmitting culture, integrating society and socialising the young. The system is the contrasting formation: spheres of action, paradigmatically the capitalist economy and the bureaucratic state, in which coordination has been uncoupled from the work of reaching understanding and is carried instead by media, money and administrative power, which steer behaviour as prices and directives steer, without asking anyone to agree. Modernity, on this account, is the long differentiation of the two: the lifeworld rationalises, its traditions becoming reflexive and its memberships elective, while the system complexifies, its circuits lengthening beyond any participant’s survey. The differentiation is an achievement, not a fall. A society that tried to run its economy by discussion would starve its discussions, and a society that ran its families by price would dissolve them. Pathology enters only at the boundary, when the steering media cross into domains whose reproduction is communicative by nature and cannot be carried on media that bypass understanding without being destroyed in the process. That boundary violation has a name, and the name is the successor concept to alienation in the retained column: the colonisation of the lifeworld.

The ancestors inside the big book: Weber, Mead, Durkheim, Parsons

The 1981 theory is built as a parliament of ancestors, and a reader who knows which ancestor is speaking at which point can follow arguments that otherwise blur into a single forbidding voice. From Weber comes the problem itself: rationalisation, the process by which the world is disenchanted, calculable orders spread, and conduct is methodised, together with Weber’s own unresolved ambivalence about whether the process is emancipation or an iron cage. His revision of Weber is the theory in embryo: rationalisation is not one process but several, proceeding at different speeds in different dimensions, and Weber’s pessimism follows from having watched the cognitive and instrumental dimension and generalised its fate to the whole. From George Herbert Mead comes the positive mechanism of the alternative: the self as an internalised conversation, identity formed by taking the attitude of the other, so that individuation and socialisation are one process seen from two sides, the exact inversion of the philosophy of the subject in which a ready-made consciousness confronts society from outside. From Durkheim comes the account of solidarity’s transformation: the sacred, which once glued the group by ritual, is linguistified, in his daring phrase, its binding energy passing into the procedures of communication itself, so that the authority of norms in a disenchanted age is the secularised residue of the authority of the rite. From Parsons, the most surprising ancestor and the one the Frankfurt tradition least expected to see honoured, comes the media theory itself, the analysis of money and power as symbolically generalised mechanisms of interchange, together with the functional architecture of systems that the second volume adopts in order to correct.

The parliament matters because it locates the theory’s centre of gravity with precision. Each ancestor contributes a component that the Marxist inheritance lacked and the substitution required: Weber, the differentiated diagnosis of modernity’s several rationalisations; Mead, the communicative constitution of the self; Durkheim, the genealogy of normative binding; Parsons, the machinery of the steered spheres. Marx remains present throughout, but as the ancestor whose question organises the parliament rather than as its speaker of record, and the demotion is nowhere more visible than in the theory’s handling of the economy: the critique of political economy survives as the analysis of one medium’s career, capital being the prototype of a steering mechanism that emancipated coordination from consensus and then overran its banks. Scholars who ask whether the big book is a Marxist work receive, in the parliament, their most concrete answer. It is a work in which Marx’s problem is set before a jury of the classical sociologists and the verdict is returned in their vocabulary, corrected by his. Whether that is the tradition’s renewal or its dissolution into general social theory is the same question as the profile’s test question, asked now at the level of method, and it admits the same double answer the ledger has been giving all along.

Steering media, and the price of coordination without words

The concept that does the joining work in the theory, and the one readers most often slide past, is the steering medium. A medium, in this usage, is a mechanism that coordinates action while relieving participants of the burden and the risk of reaching understanding. Money is the paradigm case. A purchase coordinates the plans of buyer and seller completely, and neither needs to know the other’s reasons, approve the other’s life, or share the other’s world; the price does the talking, and both parties are freed from the effort of agreement and from its possible failure. Administrative power works analogously in its sphere: the directive coordinates thousands of officials and citizens who will never deliberate together, and its currency is the binding decision, backed by office. The relief is real, and its rationality is not in dispute: complex societies cannot synchronise their material life through conversation, and the attempt would collapse the conversation under the weight of the material life. What the theory adds is the accounting. Coordination by media is purchased with a specific currency: the contexts coordinated in this way are reorganised around the medium’s own requirements, and where those contexts were previously reproduced through understanding, their reproduction changes character under the new management.

What is a steering medium?

A mechanism that coordinates many actions at once without the participants having to reach understanding: money steers the economy through prices, administrative power steers the state through binding decisions, and each works by replacing the risky work of agreement with a signal that can be followed without being believed.

The uncoupling of system from lifeworld, the phrase the theory uses for the differentiation itself, therefore has two faces, and Habermas’s handling of it distinguishes him from both his teachers and the systems theorists with whom he had debated at Starnberg and before. Against Luhmann and the pure functionalists, he insists that the system remains anchored in the lifeworld: the media themselves rest on institutions, property, contract, office, currency, that must be legitimated and reproduced in the lifeworld’s terms, and a theory that forgets the anchoring mistakes a subsystem’s self-description for the whole. Against the older Marxism, he insists that the uncoupling is not a pathology to be reversed by reunification: there is no road back to a society coordinated by undistorted speech, and the critique that dreams of one has mistaken the division of labour between words and media for a fall from grace. Pathology is local and specific. It occurs where media penetrate the lifeworld’s own reproduction, where the roles of citizen, parent, pupil, patient and neighbour are recast as the roles of client, consumer and case, and where what can only be done by understanding, the raising of a child into a self, the renewal of a culture’s meanings, the solidarity of a group, is reorganised to be done, badly, by money and files. The diagnosis that results is the most direct heir of the critique of reification in the whole later theory, and the next section states it in its own terms.

A refinement of the media analysis matters for everything that follows, and it is the point at which the theory quietly corrects the symmetry of its own diagram. The two steering media are not anchored in the lifeworld to the same depth. Money is the more thoroughly delinguistified of the two: a price requires no one’s allegiance, only everyone’s acceptance of the convention, and the market’s indifference to the convictions of its participants is the secret of its efficiency. Administrative power, by contrast, cannot be fully detached from the communicative soil in which it grows. The officeholder’s directive steers behaviour only so long as the office is recognised, and the recognition is a lifeworld achievement, renewed in the currency of legitimacy that the political system must earn and cannot print. This asymmetry has a consequence the theory exploits at its climax: the state, unlike the market, is permanently exposed to legitimation problems, because its medium is only half delinguistified, and the public sphere’s siege of the administrative system has a structural point of entry that its siege of the economy lacks. Critics who charge the theory with drawing the system too symmetrically have the letter of the diagram on their side; the asymmetry is in the text, doing decisive work, and a careful reading of the colonisation argument keeps it in view, since it explains why the theory’s political hopes lodge where they lodge, in the institutions that must still ask to be believed.

The colonisation of the lifeworld: alienation’s successor

The colonisation thesis claims that in advanced welfare states, the characteristic deformations of everyday life arise where the media of money and administrative power displace communication in domains that depend on it. His chosen field of evidence was juridification, the spread of formal law into previously informally regulated conduct, and its ambivalence is the argument in miniature. The welfare state’s law emancipates: it guarantees the worker against the employer, the tenant against the landlord, the child against neglect, and the guarantees are real conquests of the labour movement’s long century. The same law also reconstitutes those it protects as clients of the administering apparatus, defines their needs in the apparatus’s categories, compensates in money for damages that were suffered in meaning, and draws the family and the school ever deeper into a web of assessments, entitlements and files. Freedom is granted in a form that simultaneously restructures the recipient’s lifeworld around the granting. The thesis generalises the pattern: monetarisation of care, bureaucratisation of education, the conversion of political citizens into consumers of packaged alternatives and of cultural participants into audiences to be measured, each is the boundary violation wearing institutional dress.

How does colonisation differ from exploitation?

Exploitation operates inside the economy, extracting value within a sphere already coordinated by money, and its victims confront it as workers; colonisation operates at the boundary, converting spheres that reproduce themselves through understanding into appendages of money and administration, and its victims meet it as clients, patients, pupils and cases.

The comparison with the concept it succeeds is the cleanest way to see both the continuity and the substitution. Alienation, in the young Marx and in the tradition that revived him, named the worker’s separation from the product, the process, the species and the other, all inside the labour relation. Colonisation names a separation that occurs outside the labour relation, in the hours and institutions the labour movement’s victories had supposedly won for life itself, and it is perpetrated not by the factory owner but by the systems, including the welfare systems built to tame the factory owner, when they overstep their proper sphere. The Marxist objection that this dissolves class into a general complaint about modernity is recorded in the objection sections below. What should be registered here is the diagnostic gain the concept’s author claimed for it: phenomena that the older theory could only process as puzzles or betrayals, the quiet depoliticisation of prosperous working classes, the pathologies of the caring state, the consumer’s passivity amid multiplying choices, fall into place as boundary events between two modes of coordination, each lawful in its own territory. The retained column’s entry is the critical ambition itself, now armed with a map on which the economy is one province among others; the abandoned column’s entry is the economy’s ancient privilege as the single source from which all deformation flows.

One province of the colonisation argument has outrun the others in influence and should be singled out: the media themselves. The theory of the public sphere had been written under the shadow of the culture industry thesis, in which the mass media figure as the machinery by which consciousness is standardised from above. The mature theory redescribes the same machinery in its own vocabulary. Media of communication in the literal sense, press, broadcasting and their successors, belong in principle to the lifeworld’s infrastructure, the network in which a society talks to itself; but they are also businesses and bureaucracies, steered by money and power, and their characteristic deformation is a boundary event of the colonisation type, in which the imperatives of audience sale and administrative convenience reorganise the agenda of public talk from within. The redescription changes the criticism’s practical temper. Against the first generation’s near total suspicion of the media as such, the second generation’s theory can distinguish the medium’s colonised operation from its constitutional function, and can therefore defend press freedom and public broadcasting as deliberative infrastructure rather than tolerating them as lesser evils. The series’ media studies draw on both generations, and the difference between them, lament against diagnosis, is one of the cleanest measures of what the paradigm substitution bought: a criticism that can say what an institution is for, and therefore what its corruption consists in, instead of merely recording that it corrupts.

Political communication in a media society: the late essays on the public sphere

The public sphere’s third life, after the historical study and the legal theory, came in the essays on political communication in media society written in the new century’s first decade, and they complete the category’s itinerary in a way the ledger should register. The question he set them is the deliberative system’s version of the 1962 problem: under what conditions can a media system, commercial in structure and professional in operation, supply the public sphere with the services a democracy requires of it? The answer is neither the culture industry’s despair nor the liberal pluralism of the marketplace of ideas. A media system serves democracy, on this account, when it operates as an independent intermediary between the political system and the lifeworld: selecting and framing problems without being steered by the actors it reports on, maintaining professional standards that are themselves a form of institutionalised self-criticism, and opening its agendas to the periphery’s voices rather than merely amplifying the centre’s. The pathologies are the familiar boundary events in contemporary dress: the personalisation and dramatisation of politics as audience strategy, the fusion of editorial and governmental agendas, the conversion of citizens into spectators of a politics staged for their consumption, refeudalisation, in short, with better production values. What distinguishes the late essays from the early study is the direction of the remedy. The young historian of the bourgeois sphere could only mourn its transformation, since the sphere he described was gone. The old theorist of the deliberative system prescribes: media law, public service structures, professional codes and a politically alert civil society appear as the sluices and filters through which the wild communication of the periphery might still reach the centre undistorted, and the prescription’s confidence is the procedural optimism of the whole mature work, applied to the industry that had made his name by being mourned.

Enter the essays in the ledger under the retained column’s most instructive subheading, the education of a concept by its author. Three times the public sphere was rebuilt: as the bourgeoisie’s lost institution, as the deliberative system’s informal track, and as a media system’s normative job description, and each rebuilding kept the function while discarding the carrier that had failed it. A concept that survives its author’s century in this fashion is not a slogan but an instrument, and the profile’s claim for the profile’s subject rests finally on such instruments: he manufactured few, he maintained them without sentimentality, and the maintenance record, revision by revision, is the most concrete answer available to those who ask what the second generation of the Frankfurt School actually did with its inheritance.

The colonisation thesis tested: family, school, and the client

A diagnostic concept earns its keep in cases, and the colonisation thesis was built from three that its author returned to as touchstones. The first is the family under welfare law. The modern state’s protection of children against neglect and violence is an unambiguous good, purchased by the labour movement’s and the women’s movement’s long campaigns; its form, however, installs the family inside a grid of reporting duties, assessments and interventions, in which the intimate sphere’s own medium, the negotiation of trust between particular persons, is progressively supplemented and displaced by the file’s medium, in which the family figures as a case with a history the agency keeps. The second case is the school. Education is the lifeworld’s own reproduction plant, the place where a culture’s interpretations and a society’s solidarities are handed on by understanding; its reorganisation around measurable outputs, purchasable provision and the legal claims of parents as consumers converts the handover into a delivery, and the conversion is visible in the peculiar exhaustion of teachers required to document, in the system’s formats, a formation that occurs, when it occurs, in the lifeworld’s. The third case is the welfare client herself, whose encounter with the administering state the theory reads as the paradigm in miniature: a need that arose in the medium of a life story is translated, as the price of its relief, into the categories of an entitlement, compensated in the medium of money, and returned to the claimant as a definition of herself she did not choose and cannot contest in the grammar in which it is written.

The cases are chosen with polemical intelligence, and the intelligence should be acknowledged even by readers who resist the thesis. Each is a case in which the left’s own victories supply the evidence, so that the thesis cannot be dismissed as the right’s complaint against the welfare state in philosophical dress; each involves a good, protection, education, relief, whose goodness the theory affirms while indicting its form; and each isolates the same signature, a communicative process not abolished but hollowed, its forms retained and its substance rerouted through media that bypass the participants’ understanding. Critics have pressed the cases from both flanks, arguing on one side that the theory romanticises the pre-juridical family and school, which were theatres of a domination the law’s arrival genuinely relieved, and on the other that the diagnosis, generalised, dissolves into a lament over modernity indistinguishable from the cultural criticism it claims to surpass. The first criticism he substantially accepted: the juridification analysis is explicitly two-sided, and the pre-legal intimacy it refuses to romanticise was the medium in which patriarchy did its quietest work. The second he answered with the boundary criterion itself: the thesis does not indict complexity, money or law, each confined to its sphere, but a specific and checkable event, the displacement of understanding where understanding is the only medium in which the good in question can be produced. Whether the criterion can be applied without the theory’s own preferences doing the checking is the standing methodological dispute, and it is recorded here, as elsewhere in this profile, as a dispute the reader must audit rather than a verdict the profile will forge.

Discourse ethics: the moral theory of a paradigm

A paradigm of communication needs its ethics, and the discourse ethics, developed in essays from the early nineteen eighties in conversation with Karl-Otto Apel, supplies it by extracting a moral theory from the presuppositions of argumentation itself. The core is a pair of principles. The discourse principle holds that only those norms may claim validity that could meet with the acceptance of all concerned, in their capacity as participants in practical discourse. The universalisation principle, its specification for moral norms, requires that a norm’s general observance be acceptable to each affected person in its consequences, without coercion, when weighed against the alternatives. The pair is deliberately procedural. It does not deliver a catalogue of duties, a ranking of goods, or a picture of the virtuous life. It delivers a test: a filter through which proposed norms must pass, defined by the conditions under which the passing could count as rational rather than as the victory of the stronger party’s definition of reason.

How does a norm pass the discourse test?

By surviving the only examination the theory recognises: all whom the norm affects, participating as equals in practical discourse, with no force in play except the force of reasons, could accept it and the consequences of its general observance, each for himself and all for one another, and would prefer it to the known alternatives.

Behind the test stands the ideal speech situation, the concept from the essays on truth in the early nineteen seventies that popular accounts most consistently mishandle. It was never a proposal for the arrangement of meetings, a Robert’s Rules for utopians. It is the name for the set of presuppositions participants in argumentation cannot avoid making when they argue in earnest: that all capable speakers may take part, that any claim may be questioned and any need expressed, that no one is prevented by force, internal or external, from exercising these rights. Participants know the counterfactual character of the package; they behave as if the conditions held while knowing they hold imperfectly, and the as-if is not hypocrisy but the operating fiction that lets criticism get its grip, since every actual exclusion can now be named as a failure against a standard the excluders themselves have already implicitly accepted. In later work the thing itself receded and its work was taken over by the more austere language of unavoidable presuppositions, but the function never changed: to locate, inside the practice everyone already performs, the standard by which the practice’s own corruption can be judged without appeal to any authority outside it.

The partnership with Apel deserves its own entry in any account of the ethics, because the two philosophers divided the foundation problem between them and disagreed, amicably and in print, about the division. Apel sought an ultimate justification: a transcendental pragmatics that would show the presuppositions of argumentation to be strictly undeniable, since every attempt at denial reinstates them, and would thereby ground morality beyond the reach of scepticism once and for all. His collaborator accepted the undeniability and declined the ultimacy. On the weaker, fallibilistic reading that became the theory’s official one, the reconstruction of presuppositions is a scientific hypothesis in the reconstructive mode, confirmed by the absence of coherent alternatives rather than by an absolute proof, and the moral theory must live, as every other part of the edifice lives, without a final foundation. The difference looks scholastic and is anything but. It decides whether the paradigm claims for itself the one thing it denies to every other occupant of modernity, a standpoint outside the conversation from which the conversation’s rules are certified. His refusal of that standpoint, even at the price of a weaker foundation than his friend offered him, is the paradigm substitution applied to the paradigm itself: communication may not exempt its own theorist from communication’s conditions. Critics who accuse the theory of smuggling in a foundation should be directed to this quarrel, in which the smuggling was proposed, in friendship and with the best arguments, and refused.

The Kohlberg inheritance appears here at its most exposed, and honesty requires the exposure to be noted. Discourse ethics mapped the postconventional stage of moral consciousness, the stage at which norms themselves become questionable and require discursive redemption, into a social procedure; the moral point of view becomes the view from a conversation that includes everyone. Critics from several directions have pressed the joint: communitarians object that selves formed by traditions cannot step into the procedure as bare participants; feminists, most constructively in Seyla Benhabib’s reformulation, object that the generalised other of the theory must be supplemented by the concrete other of actual relationships; realists object that the procedure presupposes the very equality of voice that the distribution of power denies. His replies conceded the abstractions and held the line at the only place the paradigm permits a line to be held: the presuppositions are not a description of how human beings are but a reconstruction of what they commit themselves to in the act of justification, and a critic who argues against them has, in the arguing, already honoured them. Whether that answer is a foundation or a circle is the standing dispute about the whole theory, and the objection sections below give it at full strength.

Justice and solidarity: the two faces of the moral

One refinement of the ethics, from the essays in which the doctrine was first gathered, must not be lost in the machinery of principles, because it carries the tradition’s oldest concern into the procedural frame. Morality, he argues there, has two faces that a purely Kantian account fuses at its peril. Justice concerns the equal rights and duties of autonomous persons, and it is the face the discourse test examines. Solidarity concerns the welfare of the concrete other, the fellow member of a shared form of life whose integrity is bound up with one’s own, and it is the reverse side of justice rather than its competitor: the same web of reciprocal recognition that generates rights also generates the care without which the rights’ bearers would have no life in which to exercise them. The pairing answers, from inside the doctrine, the communitarian objection that a morality of abstract participants has no place for loyalty, attachment or mercy. Those goods are not external corrections to the moral point of view; they are its other face, and a discourse ethics that forgot them would fail its own reconstruction, since the participants whose presuppositions ground the whole procedure are formed, before they are arguers, in solidarities they did not choose. For the ledger the refinement posts a small and telling entry. The Marxism of the nineteenth century had assigned solidarity to the class and justice, as bourgeois right, to the museum. The successor theory assigns both to the structure of mutual recognition as such, available to every community of speakers and obligatory on each, and the assignment is the paradigm substitution operating at the level of the moral emotions: what production once explained, recognition now explains, and the emotions turn out to have been data for the new paradigm all along.

The forms of discourse: how claims are redeemed

Between the ethics and the theory of law stands a piece of machinery from the nineteen seventies that repays exhibition, the theory of argumentation itself, because the finished edifice rests on its distinctions everywhere and names them rarely. When a validity claim is naively raised in action and then problematised, he argues, the participants step back from the press of practice into discourse, where nothing counts except the claim and the reasons for and against it. The step is taken in different directions according to the claim at stake. Theoretical discourse redeems claims to truth, about the world of objects and events, by evidence and inference under rules adapted from the logic of argument he borrowed and modified from Toulmin. Practical discourse redeems claims to rightness, about the norms of the shared world, by the universalisation procedure the ethics formalises. And where the claim concerns sincerity, expression or the adequacy of a work of art to the experience it articulates, criticism, therapeutic or aesthetic, performs the analogous office without the others’ strict universality, testing the claim against the life history or the oeuvre from which it issues. The taxonomy is dry and its consequences are not. It explains why the theory treats science, morality and art as three irreducible provinces of a single rationality rather than as three rungs of one ladder, and why the completion of modernity consists in honouring all three: a society that lets the theoretical province annex the practical gets technocracy, one that lets the practical annex the theoretical gets moralism armed, and one that lets either annex the expressive gets the administered culture his teachers anatomised.

The machinery also locates, with unusual honesty, the theory’s own site. Philosophy, in the mature self-understanding, is the placeholder and interpreter of this discursive competence: it reconstructs the procedures by which claims are redeemed, and it mediates between the expert cultures that cultivate them separately and the lifeworld in which they must be rejoined, since the citizen in whom the provinces reunite is not an expert in any of them. The modesty of the office should not be missed. The philosophy of the subject had reigned as first science, legislating to the others from the standpoint of consciousness itself; the philosophy of communication applies for a humbler post, interpreter among the sciences and the public, on the strength of being the one discipline whose object is the medium the others share. Marx had assigned philosophy’s abolition and realisation to the proletariat. The successor assigns it a desk in the republic of letters and a standing brief to translate. The demotion, like all the demotions in this profile, is argued as a promotion in disguise: what philosophy loses in sovereignty it recovers in use, and a theory of society that began by criticising the division of intellectual labour ends by accepting its own place inside it.

Modernity defended: the unfinished project

In September 1980, accepting a prize named for Adorno in the city of Frankfurt, he delivered the address that became the second generation’s manifesto: modernity, an unfinished project. The setting gave the argument its edge. He stood to be honoured in his teacher’s name and used the occasion to decline his teachers’ conclusion. The project of modernity, as the Enlightenment had formulated it, was the development of objective science, of universalistic morality and law, and of autonomous art, each according to its inner logic, together with the hope, and the hope is the point, that these differentiated achievements would enrich the everyday world rather than being hoarded by experts. That project, he argued, had not failed. It had been abandoned piecemeal: by a cultural modernism that turned art’s autonomy into a war on all form; by critics who, surveying the wreckage of the twentieth century, concluded that reason itself was the wrecking instrument and advised surrender to myth, to power, or to a tasteful despair; and by the administrators of a modernisation that kept the economic and bureaucratic halves of the project while amputating its moral and participatory half, and then pointed to the deformity as the project’s natural face.

Why defend modernity instead of mourning it?

Because the diagnosis determines the remedy: if reason itself were the catastrophe, only irrationalism could follow, while if the catastrophe is the one-sided development of reason, its cognitive and technical strands hypertrophied and its moral and expressive strands starved, then the remedy is more modernity, completed rather than renounced.

The address matters to this profile less for its polemics, aimed at the neoconservatives of the Federal Republic and the poststructuralists of Paris alike, than for its evidence about the ledger. The first generation, facing the same wreckage, had written the dialectic of enlightenment as a closed circle: the instrument of liberation is the instrument of domination, and the circle has no exit that thought can honestly describe. The second generation’s answer replaces the circle with a differentiation. Instrumental reason is real, its career is bloody, and it is not reason’s whole extent; communicative reason proceeds in the same societies, in every act of undistorted understanding, carrying an emancipatory potential that does not need to be imported from a philosophy of history because it is exercised daily wherever persons hold one another to account with reasons. To call modernity unfinished is therefore a precise claim in the theory’s own terms, not a slogan of uplift: the project is the completion of a rationalisation that has so far proceeded one-sidedly, and its completion would consist in letting the communicative rationality already implicit in the lifeworld set the terms on which the system’s media operate, instead of the reverse. The reader who grasps that sentence holds the normative centre of everything the man wrote after 1980, including the great work on law and democracy to which this profile now turns.

Objective reason’s heir: what he took from Horkheimer’s eclipse

One ancestor inside the school’s own walls has been under-credited in this profile, and the modernity address is the place to credit him, because the address is unintelligible except as an argument with Horkheimer’s Eclipse of Reason of 1947. The elder’s book had distinguished objective reason, the reason that once judged ends as well as means by a standard inherent in reality, from the subjective or instrumental reason of the moderns, which judges only the efficiency of means toward ends it accepts as given, and the book mourned the eclipse of the first by the second as the intellectual form of the civilisation’s catastrophe. The pupil’s entire construction can be read as an attempt to save the elder’s object of mourning by relocating it. Objective reason is not recoverable as a metaphysics of the whole; the disenchantment Weber charted is irreversible and its reversal is nostalgia. But the function objective reason performed, the criticism of ends and not merely of instruments, survives its metaphysical carrier, and it survives in the one place the eclipse narrative overlooked because the narrative shared the philosophy of the subject: in the relations between persons, where ends are not given but proposed, contested and justified, and where a rationality of justification, procedural and intersubjective, does the work the old ontology of ends could no longer do. Communicative rationality is objective reason detranscendentalised, brought down from the cosmos into the conversation, and the most quoted sentence of the school’s second generation could be a marginal note on the first generation’s saddest book: the eclipse was real, and it was an eclipse of a carrier, not of the light.

That reading also settles, with more charity than the polemics usually allow, the question of temperament that hangs over the whole succession. The founders were not pessimists by constitution, nor the successor an optimist by his. Each generation theorised the evidence of its years: the founders, who had watched reason’s institutions organise the camps and the culture industry organise the peace, concluded that the damage reached the instrument itself; the successor, who had watched a republic rebuild its institutions under a constitution and argue its way, however imperfectly, out of the authoritarian inheritance, concluded that the instrument’s communicative root had outlived its instrumental career. The theories differ because the evidence differed, and a profile that reduces the difference to mood has failed its subjects in the way this one has tried not to. What the successor owed the founders, and never denied owing, was the question’s scale: nothing less than the fate of reason in the West. What he added was a refusal to let the scale of the question dictate the bleakness of the answer.

The detour through Paris: the philosophical discourse of modernity

The lecture series published in 1985 as The Philosophical Discourse of Modernity is the paradigm’s campaign against its most sophisticated rivals, the French thinkers who had concluded, by several routes, that reason and power are one. Its itinerary is a history of modern philosophy read as a series of attempts to escape the philosophy of the subject, the picture of a self-transparent consciousness confronting its objects, which he takes to be exhausted. Hegel opened the problem; Nietzsche deserted it for the will to power; and the desertion’s heirs, Bataille, Heidegger, Foucault and Derrida in their several idioms, are examined as variations on a single strategy, the critique of reason conducted in reason’s name and therefore condemned to the performative contradiction his theory keeps in its breast pocket. Foucault receives the closest and most respectful attention, as the rival whose genealogies of power most nearly describe the world the theory of communication must explain, and the respectful attention sharpens rather than softens the verdict: a totalising critique of power cannot account for its own normative standpoint, cannot say why the domination it everywhere detects is objectionable, since objection presupposes the very validity claims the genealogy dissolves. The lectures’ destination is the paradigm change itself, presented as the road not taken by two centuries of philosophy: from the subject and its objects to the intersubjectivity of speakers and hearers, from monological reason to the reason embodied in the procedures of mutual understanding.

The Paris detour repays a profile’s attention for one further reason: it contains his most considered public judgement on his own teachers, delivered in the lectures’ treatment of Dialectic of Enlightenment as the first and in some ways the most honest of the totalising critiques. Adorno and Horkheimer had seen the contradiction, he argues, and chosen it: knowing that a critique of enlightenment must use enlightenment’s tools, they let the critique consume itself, and called the consumption honesty. His alternative asks whether the premises were wrong rather than the effort doomed: if reason was never the monologue of a mastering subject in the first place, if its primary embodiment is the conversation rather than the workshop, then the dialectic that consumed the teachers’ critique does not begin, and the exit from the philosophy of the subject, which the French sought in ecstasy, power and writing, was available all along in the ordinary act of one person saying something to another and meaning it. The filial piety of the formulation should not disguise its finality. This is the point at which the second generation’s divergence from the first is stated as a complete philosophical alternative, with the founders honoured as the predecessors who posed the problem correctly and solved it, in the pupil’s judgement, wrong. Every subsequent work presupposes the verdict, and the school that the world still calls by one name contains, after 1985, two incompatible philosophies under its roof.

Between Facts and Norms: law, democracy, and the public sphere’s second life

The work of 1992, Between Facts and Norms, carries the paradigm into the theory of law and the state, and it is the book in which the earliest Habermas and his mature self are reconciled. Its problem is the tension in its title: law is a fact, backed by courts and coercion, and law claims to be a norm, entitled to the obedience of those it binds, and a modern legal order must somehow be both at once without dissolving into either mere force or mere aspiration. His answer is the discourse theory of law. Legitimate law is law that could be accepted by all legal consociates in a discursive process of legislation that is itself legally constituted. The principle of democracy, on this account, is the discourse principle specialised to the legal medium, and its consequence is the doctrine of the co-originality of private and public autonomy: the rights that secure the citizen’s private freedom and the rights that secure the citizen’s participation in making the law presuppose each other, neither having priority, each being the other’s condition. The system of rights is not a gift of the constitution’s framers to be accepted gratefully, nor a natural possession to be merely protected. It is the legal form in which a community of free and equal persons constitutes itself, and its catalogue can be reconstructed by asking what rights citizens must grant one another if they wish to regulate their life in common by law at all.

The system of rights at the book’s centre is reconstructed in five categories, and the categories repay summary because they show the reconstruction method working at full stretch. Citizens who would constitute themselves as a legal community must grant one another, first, rights to the greatest possible measure of equal individual liberties; second, the status rights of membership in the legal community itself; third, rights to legal protection, the actionability of the first two in courts; fourth, rights to equal opportunity to participate in the processes by which law is made; and fifth, rights to the material and ecological conditions without which the first four cannot be exercised as more than formalities. The fifth category carries the welfare state’s justification inside the system of rights rather than importing it as charity or as class compromise, and the fourth carries the democratic principle: the addressees of law must be able to understand themselves, at the same time, as its authors. Private and public autonomy are thereby made co-original in the strict sense, each reconstructed as the other’s presupposition, and the long liberal and republican quarrel over which freedom comes first is dissolved into the circle of the legal medium itself, which exists only where both are granted together.

What is the two-track model of deliberative politics?

Formal institutions, parliaments, courts, administrations, form one track, where binding decisions are made under procedures; the informal public sphere forms the other, where problems are sensed, themes raised and influence generated, and democracy is the sluice system between them, influence passing inward, decisions answering outward.

The public sphere of 1962 returns in this architecture, transformed past recognition and recognisable throughout. It is now the informal track: a network for the communication of information and points of view, unorganised, anarchic, incapable of decision and not meant to decide, whose power is purely communicative and whose function is peripheral in the productive sense, to besiege the fortress of the formal system with problems it cannot indefinitely ignore. The administered world is not abolished, and the theory has ceased to ask for its abolition. It is to be held answerable, through sluices of procedure, to a communicative power generated in the lifeworld’s unsteered talk. Readers of this series will recognise the shape: it is the war of position restated in the vocabulary of jurisprudence, consent organised through institutions, with the trenches dug in editorial offices, associations, lecture halls and assemblies rather than in the parties of the old century. That the theory built to replace the classical Marxist account of revolution should converge, in its maturity, on a procedural version of the strategy the classical tradition’s own greatest tactician had sketched is one of the quiet ironies the ledger records without comment. The substitution holds: where the older strategy sought the class that would storm or besiege, the new theory seeks the procedures that would make storming unnecessary and besieging permanent, and the agent has dissolved into the citizenry at large, armed with rights rather than with a historical mission.

His return to Frankfurt in 1983, to the chair and the university from which the Starnberg institute had been a decade’s sabbatical, and his emeritus standing in 1994, belong to the biography’s surface. The books of the later years extended the paradigm’s frontiers rather than revising them: a pragmatic theory of truth, worked out against his own earlier consensus account; the essays on religion in the public sphere, where the secular state’s demand that religious citizens translate their reasons is balanced against a complementary learning process demanded of secular citizens; and the long dialogue with naturalism, in which the participant perspective of communication is defended against the objectifying descriptions of neuroscience without conceding the sciences their territory. Each late theme is the paradigm substitution restated in a new province: wherever a human practice is threatened with redescription in the vocabulary of systems and functions, the theory insists on the irreducibility of the second person, the Thou addressed and answering, as the standpoint from which the practice is what it is.

Civil society: the institutional core of the periphery

Between the lifeworld’s kitchen tables and the public sphere’s open network, the legal theory installs a middle term that readers of the earlier work were not expecting to see promoted: civil society, in the specific sense of the web of voluntary associations, churches, unions, cultural societies, citizens’ initiatives and movements that neither the market nor the state organises. Its function in the architecture is sensory and generative. Associations are close enough to the lifeworld to feel problems where they are lived, in the idioms in which they are suffered, and organised enough to give those problems voice, theme and address before the media amplify or bury them. The public sphere, on this account, is not a spontaneous weather of opinion but a structure with an institutional core, and the core’s health, its independence from both money and office, its plurality, its rootedness in the everyday, is the empirical variable on which the whole deliberative machinery silently depends. The theorists of civil society in the Eastern European dissident traditions and their Western interpreters had kept the term in circulation while the Marxist tradition, for which it named the bourgeois order itself, let it lapse; its reappearance at the centre of the school’s mature politics, redefined as the sphere of association between economy and state, is one of the substitution’s most visible trophies. Where the classical doctrine located civil society as the problem, the anatomy of egoism to be overcome, the successor locates it as the sensorium of the solution, the only place from which the system’s programmes can be corrected by the experience of those who live under them. The distance between those two locations is, once more, the distance between the paradigms, measurable in a single term’s migration across the ledger from the description of the disease to the description of the cure’s organ.

Communicative power and the hinge of law

The legal theory rests on a concept of power borrowed, with acknowledgement and amendment, from Hannah Arendt, and the borrowing is one of the paradigm’s most revealing transactions. In an essay of the late nineteen seventies he took up her distinction between power and violence: power, for Arendt, is not a possession or an instrument but the human capacity that springs up between people when they act in concert and vanishes when they disperse; violence is its mute opposite, an instrument that can destroy power but never create it. Transposed into the theory of communication, the distinction becomes the difference between two kinds of power in a modern state. Communicative power is generated wherever citizens, acting together in the uncoerced formation of opinion and will, arrive at shared convictions about their common affairs; it is real, it is perishable, and it cannot be stored, stockpiled or delegated without changing its nature. Administrative power is the state’s stored and steered capacity, organised in offices, budgets and chains of command, indispensable for implementation and blind by design to everything except its programmes. A legitimate order, on the theory that results, is one in which administrative power remains bound to the communicative power that authorises it, as an amplifier remains bound to the signal it exists to carry; a pathological order is one in which the amplifier begins to generate its own signal, programming itself, recruiting its publics as audiences for decisions taken elsewhere.

Law is the hinge between the two powers, the transformer in which the fleeting energy of communication is converted into the durable form of binding decisions without, in the legitimate case, losing its provenance. The image is exact about the direction of flow the theory demands: influence generated in the public sphere passes through the sluices of elections, parliamentary procedure and judicial review, is condensed into statute, and issues as administrative action whose legitimacy is the memory of its passage. Where the flow reverses, where administrative power programmes the public sphere that is supposed to programme it, through the management of information, the staging of consent and the purchase of agendas, the theory has its most precise description of the democratic deficit that citizens of administered societies report as a feeling before they can state it as an argument. The concept therefore completes the paradigm’s political architecture, and its genealogy should be entered in the ledger with care, because it settles the standing question of what, in the new theory, replaces the old theory’s seizing of power. Nothing is seized. Power is generated, continuously or not at all, in the communicative life of the citizenry, and the most a theory can do is describe the institutions under which the generation is least distorted and the conversion least lossy. The founders of the tradition would have found the modesty unrecognisable as politics. The successor found in it the only politics that a disenchanted theory of democracy can honestly recommend, and the distance between those two judgements is the distance this entire profile has been measuring.

The paradigms of law: the welfare state judged by its own theory

One construction inside the legal theory has had a career of its own in jurisprudence and belongs in this profile because it shows the retained column governing a whole field. Modern legal orders, he argues, succeed one another as paradigms, background pictures of society that tell judges and legislators what law is for. The liberal paradigm of the nineteenth century pictured autonomous private persons meeting in the market, and its law was formal: general, equal, and blind to the material inequalities its formality protected. The welfare state paradigm arose from the critique of that blindness, materialising the law to correct outcomes, intervening, particularising, compensating, and paying for its corrections with the juridification and clientelisation the colonisation thesis describes. Neither paradigm, he argues, can be restored, and neither simply refutes the other: each grasps one half of the co-originality doctrine, private autonomy for the first, its material conditions for the second, and the proceduralist paradigm he proposes subordinates both to the process by which citizens give themselves their law. Welfare entitlements, on this account, are justified exactly insofar as they secure the effective value of the liberties and participatory rights of all, and no further; beyond that point they curdle into the tutelage the theory of communicative action had already diagnosed.

The construction’s importance for the ledger is that it defeats, in a worked case, the objection that the theory merely ratifies the existing order. The existing order of the Federal Republic was a welfare state resting on the second paradigm’s self-understanding, and the theory subjected that self-understanding to a standard drawn from the order’s own constitution, found the order wanting in specified respects, and named the respects: the conversion of citizens into clients, the depoliticisation of questions that belong in the public sphere, the asymmetry by which the beneficiaries of social rights appear as their recipients rather than their authors. Immanent criticism of this kind is the oldest instrument in the tradition’s case, the instrument Marx used on the political economy of his day, and its reappearance at the centre of the school’s second maturity is the plainest available demonstration that the retained column retains the tradition’s method and not merely its mood. What changed is the bench from which the criticism is delivered: no longer the standpoint of the class whose interest coincides with the universal, but the standpoint of the citizen whose rights generate the standard by their own logic. A reader who wants the whole paradigm substitution in a single institutional example will find it entire in this one: the critique of the welfare state, conducted by Marx’s heir, in the name of the constitution.

Truth after consensus: the pragmatic turn of the later work

The theory of truth is the quiet subplot in which the paradigm corrects itself, and its corrections display the reconstructive method’s fallibilism better than any programmatic statement. In the essays of the early nineteen seventies he had defended a consensus theory: a statement is true if it could command the rational assent of all competent judges under the conditions of the ideal speech situation, so that truth was defined by an epistemic idealisation, the limit of inquiry itself. The construction drew objections that proved decisive, since a proposition’s truth cannot wait upon the agreement even of ideal inquirers without confusing the property of being true with the procedure for finding out. The work of the late nineteen nineties, gathered in the volume on truth and justification, concedes the point and rebuilds: truth is returned to the realist intuition that a statement is true when things are as it says, while justification, the raising and redeeming of the claim, remains discursive through and through. The distinction seems small and carries the whole later philosophy. It marks the theory’s final settlement with its Kantian inheritance, a realism about the world joined to a proceduralism about our warrants, and it protects the critical enterprise from the charge that a society’s agreements define its reality, which would make ideology critique impossible at exactly the point where it is needed.

The same late work conducts the long negotiation with naturalism that the paradigm’s defence required. A completed neuroscience, his opponents suggested, would redescribe the participant’s world of reasons as the epiphenomenon of circuits, and the theory of communication would survive only as folklore. His answer distinguishes two standpoints that one and the same being occupies: the observer’s, from which brains and systems are described in the third person, and the participant’s, from which persons address and answer one another in the second person, raising claims they cannot coherently treat as mere secretions while they are raising them. The standpoints are irreducible to each other and neither is an illusion, and freedom itself is redescribed as the participant’s name for the space in which reasons bind. Enter the episode in the retained column, for it is the critique of scientism, the oldest Frankfurt commitment of all, restated in the vocabulary of the philosophy of language: what the first generation defended as the irreducibility of reflection against positivism, the second defends as the irreducibility of the second person against the completed third person description. The paradigm substitution here shows its longevity dividend. A theory founded on labour would have had to fight naturalism on the terrain of production, where the machines keep winning. A theory founded on communication fights on the terrain of address, where every victory announcement of the reduction is itself an address that presupposes what it denies.

Constitutional patriotism and the postnational constellation

The political writings of the middle and later decades extend the paradigm into questions of collective identity, and two of their concepts have escaped the academy into the common vocabulary of European politics. Constitutional patriotism, a term he took up and made his own in the essays of the nineteen eighties, names the form of attachment available to citizens of a pluralist democracy after the ethnic nation has been disgraced as an object of loyalty: allegiance not to a bloodline or a destiny but to the principles of a constitution as they have been appropriated in a particular political culture’s history, its catastrophes included. The concept is the discourse theory applied to identity: a we that is constituted by a practice of justification rather than by a substance preceding all practice, held together by the conversation about what its principles require rather than by the memory of what its ancestors were. The postnational constellation generalises the thought. As economic and ecological processes overflow the nation state’s steering capacity, he argued, the political must follow its problems upward, and the constitutionalisation of international relations, the building of supranational institutions answerable to something like a global public sphere, becomes the unfinished project’s next storey rather than its betrayal.

What is constitutional patriotism?

Loyalty whose object is a constitution’s principles as a particular people has made them its own through its history: attachment to procedures of justification and the rights they entrench, rather than to ethnic descent or national glory, so that belonging is an achievement of political culture, renewed or neglected by its citizens.

His bicentennial essay on Kant’s perpetual peace, written in the middle nineteen nineties, states the international version of the doctrine with a candour about its difficulties that the programme’s critics rarely match. Kant had projected a cosmopolitan order from the standpoint of a world citizen; two centuries of institutional history had supplied the projection with fragments of machinery, leagues, courts, charters, while withholding the solidarity among strangers on which the machinery’s legitimacy must rest. His revision accepts the machinery and rebuilds the foundation: not a world republic, which would reproduce the state’s coercion at a scale where no public sphere could discipline it, but a multilevel system in which supranational institutions for peace and rights are anchored in the deliberative processes of constitutional states and in the weak, wild communication of a global public sphere that assembles, in flashes, around the catastrophes it witnesses. The essay is the unfinished project at planetary scale, and it closes the arc that began in the coffee houses: the public that once besieged a princely court with pamphlets now besieges, with broadcasts and petitions, the councils of a world order, and the theory’s question is unchanged, whether the besieging talk can be converted, by procedures worthy of it, into legitimate law.

Critics from the nationalist direction have always found the attachment too thin to die for, and critics from the cosmopolitan direction too thick, still marked by the particular histories it claims to transcend, and both objections are recorded in the literature as live. For the ledger, the concepts’ significance is diagnostic. A Marxist of the classical school asked how men are bound to their collectivities looked for the answer in their position within production, and predicted that national loyalties would dissolve as the world market unified. The successor theory looks for the answer in the medium of communication and finds loyalties reforming, after catastrophe and under conditions of pluralism, around the only object that a disenchanted age can justify to itself: its own procedures. That the theory built to succeed historical materialism should end by predicting the form of political attachment in a postnational age, and that statesmen should borrow the prediction as a programme, is a late and considerable entry on the retained side, the tradition’s ancient claim that ideas become material forces, arriving by the communicative road.

The public use of history: identity as an achievement of argument

The constitutional patriotism of the previous section has a historical underside that his essays of the nineteen eighties worked out in the course of a celebrated controversy among German historians, and the theoretical position, detached from that controversy’s persons, belongs in this profile because it generalises the paradigm to the past. A political community’s identity, the essays argue, is not a possession inherited like a language but an achievement renewed in the public use of history: in the arguments by which a society decides which of its traditions it will own, which it will disown, and what its catastrophes oblige it to become. The singularity of the crimes committed under National Socialism, and the unconditional rupture with the traditions that made them possible, form for his generation the fixed point of the Federal Republic’s self-understanding, not as a burden imposed from outside but as the one appropriation of the past that the constitution’s principles themselves require. Learning from catastrophe, a phrase the essays made canonical, is thus a learning process in the technical sense of the reconstruction theory: a society raises the level of its self-understanding by submitting its inherited self-image to discursive examination, and the examination’s venue is the public sphere, whose health can be measured by nothing more reliably than by the quality of the arguments it sustains about the community’s own past. The Marxist resonance should be heard before it is named. Historical materialism had taught that men make their own history but not under circumstances of their choosing. The successor doctrine adds the clause the paradigm requires: they remake their understanding of that history, or fail to, under the conditions of the communication in which the understanding is formed, and the remaking is itself a material force in the history that follows. Collective memory enters the ledger as a province of the lifeworld, defended or colonised like the rest.

The new obscurity: a utopia runs dry

The diagnosis of the times that he gave in the middle nineteen eighties, in the essay on the new obscurity and the collection on the new conservatism, is the point where the theoretical break and the political judgement of the postwar settlement meet most transparently, and no profile that stopped at the systematic works would explain why his name travelled beyond the universities. The welfare state compromise, he argued, had exhausted its utopian energies, and the exhaustion had a specific address: the utopia that had powered the labour movement and its parties was centred on labour itself, on the vision of emancipated work in a society of producers, and it had spent itself against the reality of a capitalism that no longer organised life chiefly around the factory or experienced its crises chiefly as unemployment of the classical kind. The new conflicts of the age arose, instead, at the seams of the system and the lifeworld, over the terms on which money and administration penetrate the conduct of life, and the defensive movements they generated, ecological, feminist, localist, aimed not at the means of production but at the grammar of forms of life. The essay’s significance for this profile is that it performs the paradigm substitution as an act of political diagnosis in public: the same replacement of production by communication that the systematic works argue from the philosophy of language is here confirmed, he claimed, by the history of his own camp, whose utopia died on schedule with the paradigm that had housed it.

The diagnosis drew the expected fire from the camp it described. To declare the labour-centred utopia exhausted, orthodox critics replied, at the very moment when the governments of the Atlantic world were rolling back the welfare settlement by force of policy, was to supply the rollback with a philosophy of history, to rename defeat as maturity. His answer held the line at the distinction the whole corpus maintains: the welfare state’s achievements are to be defended, precisely as achievements of rights and security, but defended in the paradigm that can justify them, as conditions of citizens’ autonomy, rather than in the exhausted paradigm that mortgaged them to a philosophy of production. Whether the answer persuaded is a question the subsequent decades of his camp’s fortunes answer bleakly in the negative, and the profile records the fact without adjudicating it. What the episode settles for the ledger is narrower and important: the substitution was not a seminar manoeuvre. Its author carried it into the open as a claim about the age, accepted the costs of carrying it there, and kept it unchanged under the fire of both the camp that called it capitulation and the camp that called it nostalgia, which is the behaviour of a theoretical conviction rather than of a fashion.

The exchange with Rawls: political liberalism and its critic

The most instructive quarrel of the later career was conducted with the one contemporary whose standing matched his own, and it belongs in the record because it shows the retained column negotiating, as an equal, with the liberalism to which the critics consigned him. In 1995 the Journal of Philosophy carried his extended critique of John Rawls’s political liberalism, with Rawls’s reply printed alongside, an exchange scholars still assign as the cleanest map of the difference between the two great proceduralisms. His charge was precise: Rawls, by fixing the principles of justice in an original position behind a veil of ignorance, had decided in the theorist’s study the questions that a democratic theory must leave to the citizens’ own public use of reason, and had thereby subordinated the political autonomy of actual citizens to a construction they are asked merely to ratify. The co-originality doctrine supplied the counter-model: rights and popular sovereignty presuppose each other, so no schedule of liberties may be entrenched in advance of the democratic process that is supposed to legitimise the entrenchment. Rawls’s reply, courteous and unmoved, held that the difference between them was smaller than the critique allowed, a family quarrel within the deliberative camp.

Both verdicts are true, and their conjunction is the point a profile should seize. The exchange is a family quarrel: no classical Marxist could have conducted it, since its terms, the design of a just basic structure and the grounds of citizens’ allegiance to it, belong to the constitutional tradition the classical doctrine expected to transcend. And it is a quarrel: the liberal family’s senior figure is accused, by the Frankfurt family’s, of smuggling a substantive settlement into a procedural frame, which is the exact accusation the whole theory levels against every philosophy that decides for citizens what citizens exist to decide. The critics who file him as a liberal must explain why liberalism’s own architect needed defending against him; the loyalists who file him as the school’s continuator must explain why the defence was mounted on the terrain of constitutional design at all. The ledger explains both without strain. The terrain changed with the paradigm. The habit of auditing every settlement against those it binds did not.

Faith and knowledge: the postsecular essays

The last frontier the paradigm colonised in his hands was the one the Enlightenment thought it had settled in advance, and the essays on religion from the turn of the century onward test the theory’s hospitality at its limit. His intervention began with an address of October 2001, delivered on receiving the Peace Prize of the German Book Trade weeks after the attacks on New York, in which he argued that secular reason, confronted with religious traditions it had declared obsolete, should adopt a posture of learning rather than dismissal: the traditions carry semantic contents, vocabularies of failure, guilt, redemption and solidarity, that the secular language of rights and procedures has not succeeded in translating without remainder, and a reason that refuses the translation impoverishes itself. The political theory followed. In a postsecular society, his term for a society that must reckon with the continued existence of religion rather than with its predicted disappearance, religious citizens owe the state a translation of their reasons into a generally accessible language before those reasons may ground coercive law; and secular citizens owe, in return, an openness to the possible truth of what is translated, a complementary learning process that forbids the secular side from deciding in advance that religious utterance is noise.

The essays were received, predictably, as a conversion, and the record supports no such drama. The theorist who had written, as a boy, under the shock of a criminal state’s collapse into barbarism, and who had assigned religion its place in the genealogy of solidarity from Durkheim onward, was extending the paradigm to the conversation partner it had last excluded. The argumentative structure is the theory’s signature in its purest late form: a practice, public justification, is examined for its presuppositions; an exclusion, here the exclusion of the religious voice or of the secular ear, is shown to fail by the practice’s own standard; and the remedy is procedural, a discipline of translation imposed symmetrically on both parties. Enter the episode where it belongs in the ledger, as the retained column’s furthest reach. The critique of ideology had begun, in the nineteenth century, as the unmasking of religion as the opium of a suffering people. Its heir concluded, in the twenty-first, by unmasking the unmaskers’ deafness as a distortion of communication in its own right, and did so without surrendering one clause of the secular state’s justification. Whether that conclusion is the tradition’s maturation or its final domestication is the form the profile’s test question takes in the new century, and it is deliberately left, as its author left it, to the continuing argument.

The last summation: a history of philosophy between faith and knowledge

In his ninetieth year he published the work that closed the circle of the formation with which this profile began: a two-volume history of philosophy, subtitled as another history of philosophy to mark its difference from the textbooks, which reads the Western tradition from the axial age to the threshold of modernity as the long negotiation between faith and knowledge. The choice of subject is itself a theoretical act. The philosopher who had begun with Schelling, idealism’s own internal heretic on the question of God and history, ended by writing the genealogy of the discourse ethics’ deepest premise: that the moral contents of the biblical traditions, human dignity, solidarity with the least, the idea of a life that could be justified as a whole, entered philosophy as translations of religious insights, and that philosophy forgets its debts to those translations at the price of forgetting why its own central concepts matter. The volumes are not a retraction of the paradigm but its autobiography at civilisational scale: learning processes, in the precise sense of the reconstruction essays, traced through two millennia of argument between the temple and the academy, with philosophy cast as the translation bureau in which revelation’s claims were progressively converted into reasons any citizen could examine.

For the ledger, the summation resolves a question that has trailed the profile’s retained column from the first page: whether the emancipatory intention that survives the substitution is a residue, a habit of the formation outliving its justification, or a load-bearing commitment with its own genealogy and defence. The late work answers by writing the genealogy. The intention is presented as the modern form of an inheritance far older than Marxism, which Marxism received, translated into the key of production, and bequeathed in damaged condition to its successors; and the successor’s life work becomes, in this final self-interpretation, the intention’s retranslation into the key of communication, undertaken so that the inheritance could survive the collapse of the key in which the nineteenth century had set it. Readers will weigh the self-interpretation as they weigh all such documents, as evidence and as advocacy at once. But no reader of the two volumes can sustain the lazy version of the abandonment charge, on which the theorist drifted from his tradition by inattention. The drift has a chart, drawn by the navigator himself, and it runs from the manuscripts of 1844 through the wreck of the labour paradigm to the bureau of translation where the work of this profile has been conducted throughout.

The labour paradigm on trial

It is time to prosecute the abandonment directly, on its merits, because the ledger’s fairness depends on showing that the labour paradigm was not dropped from fashion or fatigue but convicted, by its author’s argument, of specific failures. The classical model, as he received it, grounded human self-formation in production. The species makes itself by making its world: in labour, human beings externalise their powers in objects, encounter those powers as alien when the objects are owned by others, and are destined to reclaim them when the relations of production are revolutionised. Around this core the whole classical architecture arranged itself: the economic base and its superstructures, the class formed in production as history’s agent, the crisis of production relations as history’s engine. His critique, developed from the nineteen sixties onward, charges the model with a systematic blindness that its nineteenth-century origins excuse and its twentieth-century fate exposes. The model knows one medium of self-formation, the subject’s instrumental action on nature, and it is therefore obliged to treat the other medium, interaction between subjects, as a derivative of the first or as a decorative supplement. Morality, law, solidarity, the whole normative fabric in which production itself is embedded and by which it is legitimated or resisted, becomes superstructure, real in its effects but second-class in its being.

His evidence was not confined to the model’s failures in other hands; he prosecuted it in Marx’s own texts, and the prosecution’s care is a large part of its persuasiveness. In the manuscripts of 1844, the young Marx had possessed a richer concept than the one the mature system kept: species-being named the human capacity for conscious, universal, self-determining activity, in which production and recognition were still one notion, not yet sorted into base and superstructure. The economic theory then narrowed the inheritance, as the requirements of a science of capital pressed the concept of practice down into the concept of labour, and the categorial framework of production, so triumphant within its province, was silently universalised into a philosophy. On his reading, the narrowing explains the tradition’s two chronic symptoms at a single stroke: its recurring reduction of normative questions to questions of interest, and its recurring surprise when the class formed at the point of production proves to hold, alongside its interests, norms of fairness and dignity that it will defend at cost to its interests, data the paradigm can register only as false consciousness or as residue. A theory that must dismiss its own subject’s moral experience as ideology has located the flaw, he concluded, in the wrong place, and the conclusion is argued from the founder’s manuscripts rather than from the century’s disappointments alone.

What could the production paradigm not explain?

How norms bind: on the labour model, moral and legal orders figure as reflections of production relations, so the theory can explain whose interest a norm serves but not why anyone, including its critics, experiences it as a claim that must be answered with reasons rather than merely unmasked as an interest.

The failures compound. Because interaction is under-theorised, the model has no adequate account of its own critical standpoint: the theorist denounces ideology from a position the theory cannot furnish, since all consciousness is socially formed and the denunciation is consciousness too. Because the agent is defined by production, the theory is hostage to the empirical fate of one class, and when that class, enriched and integrated, declined to perform its assigned role, the theory had no second act, only the increasingly desperate expedients the century recorded, substitution of the party for the class, of the nation for the party, of the theorist’s contempt for the class that disappointed him. Because crisis is anchored in production, the displacements and managements of crisis by the intervening state appear as anomalies, and the political and cultural levels at which crises actually matured are read as epiphenomena of a mechanism that had already been socialised. The charge sheet, it should be noted, is drawn from the tradition’s own disappointments and is argued with the tradition’s own tools; Marx is the first witness for the prosecution, since it was Marx who taught that a theory is to be judged by the practice it can illuminate. The labour paradigm is honoured in the only way the theory of knowledge he inherited permits anything to be honoured: by being replaced where it fails, openly, with the reasons on the record.

Fairness also requires the defence to be heard, and the Marxist objection sections below give the critics their turn. Here, at the moment of conviction, let the cost be entered plainly. A theory that grounds critique in communication buys its standpoint at the price of its leverage: it can say, with precision, what is wrong with a distorted order, and it cannot say, with anything like the old confidence, who will right it or by what historical mechanism. The old theory’s agent and engine were not decorations; they were the connection between diagnosis and expectation, and severing them was the substitution’s deepest cut. His mature work accepts the severance as the condition of honesty after the century’s evidence, and rebuilds the connection in the weaker, procedural form examined above: not a guarantee that history sides with emancipation, but institutions through which emancipation’s friends can act without ceasing to be democrats. Whether the rebuilt connection bears weight is precisely what the critics dispute, and the dispute is the live one.

What was abandoned: reading the ledger’s left column

Gather the abandonments in one place, then, and read them as a set, because their pattern is the substitution’s signature. Labour as the paradigm of self-formation goes first, and it is the root entry: the species no longer makes itself primarily by making things, and the concept of praxis is widened past production to include the interaction in which producers recognise one another as persons before they cooperate as hands. The proletariat as agent goes with it, necessarily: a class defined by its place in production cannot be the appointed subject of a history whose medium is communication, and no other appointed subject takes its place. The critique of political economy as the theory’s core goes third: the economy remains a privileged object, the system in which money steers, but it is one province of a two-storey theory, and its categories no longer furnish the master key. The breakdown expectation goes fourth, retired by the crisis theory’s own findings about displacement and management. The philosophy of history with its guarantees goes fifth, replaced by a reconstructive science of learning that orders stages without promising arrival. And the first generation’s verdict on reason goes sixth: the claim that enlightenment as such is domination, the bleakest entry in the school’s own ledger, is refused, since it confuses one of reason’s modes with the whole and saws off the branch on which the refusal itself is uttered.

Each abandonment, notice, is of a form rather than of a concern. Labour is abandoned as paradigm, not as a sphere of life whose organisation matters; the sections on steering media give work’s world one of the theory’s two storeys. Class is abandoned as appointed agent, not as a fact of stratification whose effects on voice and access the theory of the public sphere tracks relentlessly. Political economy is abandoned as master key, not as analysis; the crisis book and the colonisation thesis are unthinkable without it. What the left column records, read carefully, is not a bonfire but a demotion series: the old sovereign concepts are retired from sovereignty and retained as civil servants of a theory whose sovereign is communication. That is why the is-he-a-Marxist question resists its binary form. The inventory of his working concepts is recognisably the tradition’s inventory, re-ranked. Only the ranking, which in a theory is nearly everything, has changed.

One further entry belongs in the left column, entered late because its absence is so complete that readers cease to notice it: organisation, and with it the party. The classical tradition had a theory of the political form in which its agent acts, the party as the class’s organised consciousness, and every successor doctrine inherited the problem of the form even when it revised the agent. In the work under review the problem simply dissolves. Parties appear in the legal theory as components of the political system, organisations competing for the occupation of offices, and the theory has no category for a formation that would stand between the wild public sphere and the formal institutions as the citizenry’s school and sword. The dissolution is principled, not negligent: an organisation that mediates between communication and decision will, on the theory’s own analysis, be steered by the imperatives of its own maintenance, and the iron law by which parties become ends in themselves is accepted as a law rather than resisted as a fate. What replaces the party is the sluice system itself, procedures and rights through which influence passes without being embodied in a permanent bearer. Admirers call this the theory’s democratic maturity; the Marxist objection, heard below, calls it the exact point at which the theory ceases to be a politics, since a citizenry without an organised form is a public, and a public, however rational its talk, does not rule. The entry is recorded here so that the objection, when it comes, can be seen to have been anticipated in the ledger’s own bookkeeping.

What was retained: reading the ledger’s right column

The right column is shorter in entries and heavier in consequence, and its first entry is the one on which all the others depend: the emancipatory interest itself. From the 1968 epistemology, where it stood as one of three knowledge-constituting interests, through the crisis theory, the communicative turn and the discourse ethics, the theory never ceases to be written from the standpoint of a possible undamaged life, and never ceases to define damage as the deformation of the conditions under which human beings could determine their life in common. The second entry is the critique of ideology, translated rather than retired: where the older critique unmasked false ideas by reference to the interests they served, the new one diagnoses systematically distorted communication, the speech situation so arranged by power that its participants cannot raise the claims that would expose the arrangement, and reflection remains the solvent, now proceduralised as the demand that every exclusion from discourse justify itself in discourse. The third entry is historical materialism’s materialist nerve: consciousness is still explained by the organisation of social life, never the reverse alone, and ideas still have to earn their history by showing the institutions that carry them. The fourth is the evolutionary frame itself, reconstructed: history still has a direction that theory can state, the direction of learning, though the direction no longer guarantees its destination.

And the fifth entry is the one his liberal readers most often miss, which is why the liberal filing fails as surely as the loyalist one: the diagnosis of the present order as deformed by the encroachment of economic and administrative logics on the conduct of life. Strip the Frankfurt vocabulary from the colonisation thesis and the structure remaining is the oldest in the tradition, the claim that the way a society organises its material reproduction invades and deforms the relations in which its members recognise one another, and that this invasion, not any failure of individual virtue, is the source of the characteristic sufferings of the age. A liberalism that held that claim at its centre, argued it for six hundred pages of social theory, and built its politics on reversing the invasion’s direction would be a liberalism the tradition’s founder would have recognised as family. The retained column is why the neighbouring shelf in the bookshop cannot hold him either. He kept the critical ambition entire: what he surrendered was the ambition’s nineteenth-century machinery, and a reader who cannot distinguish an ambition from its machinery will misfile him in both directions, as the reception has industriously done.

The paradigm substitution: the claim on which the profile rests

State the namable claim now at full strength, since the profile has been assembling its warrant section by section. The paradigm substitution is the claim that every major difference between Habermas and Marx, and between Habermas and the first Frankfurt generation, derives from one replacement: communication installed where production had stood, as the model of human self-formation and the medium in which society reproduces itself. Test the claim against the ledger. The agent disappears because communication has no appointed speaker; its subject is whoever can raise a claim, which is everyone and therefore, for the purposes of historical guarantee, no one. The breakdown disappears because a theory of two storeys expects crises to be displaced between storeys and managed within them, and the theory’s crisis concept follows the displacement. The ideology critique changes its instrument because distortion, in the new medium, is a property of speech situations rather than of class standpoints. The pathology changes its address because deformation now occurs at the boundary where media invade speech, rather than inside the labour process alone. Even the prose style is a consequence: a philosopher of production writes treatises on objects, while a philosopher of communication writes theories of the conditions under which anything could be an object of agreement, and the notorious abstraction of the mature work is the abstraction of its subject matter, the procedure beneath the contents.

The claim also disciplines the comparison with the classical doctrine that this series treats in its own study, critical theory vs classical marxism, where the generational sequence is laid out in full. What that comparison shows, and what the present profile presupposes, is that the school’s history can be read as a series of answers to a single embarrassment: the agent failed to appear. Lukacs supplied the agent with a consciousness it did not empirically have. The first Frankfurt generation, surveying the wreckage, dissolved the agent into a critique of the civilisation that had deformed it. Habermas’s move is the third answer and the most radical, since it denies that the theory needed an appointed agent in the first place: what it needed was an account of the medium in which agents form, and that account, once given, relocates emancipation from a predicted event to a standing possibility inside every undamaged act of understanding. Readers may find the relocation exhilarating or evasive, and the objection sections will prosecute the evasive reading at full strength. What cannot be denied is the relocation’s systematic reach. One substitution, honestly executed, re-derives the entire theory, and a thinker is rarely granted, or burdened with, so clean an explanation of himself.

The claim also has a use beyond biography, as a prediction instrument, and a profile may end its argument by testing the instrument once. Take any question the theory’s author never addressed in the classical vocabulary, the governance of digital platforms, say, or the organisation of care in an ageing society, and ask where the paradigm tells the analyst to look. Not, in the first instance, to ownership, though ownership will matter as a condition; but to the boundary between the media: to the points where a communicative process, the formation of opinion, the raising of a child, the conduct of a friendship, is being reorganised by steering mechanisms that relieve its participants of understanding while extracting the value their understanding created. The prediction has been borne out so regularly, in the essays on media society and the postsecular writings among others, that the instrument can be recommended to the reader as the profile’s practical yield: learn the substitution, and the positions of a shelf of difficult books become derivable rather than merely reportable, which is the difference between studying a thinker and being able to think with him. That derivability, in the end, is what a paradigm is for, and it is the strongest internal evidence that the substitution was real, since a mere change of vocabulary predicts nothing.

A school of one: what the substitution founded

A word, before the objections are heard, about the institutional shape of the achievement, since it conditions how the objections should be weighed. The first Frankfurt generation was a school in the strong sense: an institute, a journal, a shared exile, a common enemy in positivism and a common text in the Dialectic of Enlightenment. The second generation, in the form this profile has followed, is a school of one systematiser and a diaspora of students, collaborators and critics who took the paradigm in directions its author did not always follow: Wellmer toward aesthetics and the critique of the theory’s own totalisations, Offe toward the political economy of the welfare state, Honneth toward recognition, and a generation of legal and political theorists toward the empirical study of deliberation the master had sketched and they operationalised. The Frankfurt chair and the Starnberg institute gave the work its platforms, the Suhrkamp publishing house gave it a public form, collected editions of essays appearing with the regularity of a second bibliography beside the books, and the Anglophone reception, carried by translators and by Thomas McCarthy’s expositions, made the theory a standing option in departments of sociology, law and political science on several continents. Critical theory, which the founders had conducted as an esoteric discipline at the margin of the university, became under the successor an academic research programme with journals, chairs and a normal science.

The transformation cuts both ways, and the ledger should record both edges. A research programme can be audited, taught, extended and falsified in parts, which is what its founder’s method demands of it; the founders’ school could only be betrayed or repeated, and mostly was repeated badly. Against this, the normalisation of critique is itself one of the phenomena critique exists to notice, and the spectacle of the theory of undistorted communication administered as a curriculum, its counterfactuals examined for credit in steered institutions, has not escaped the ironists of either camp. His own reported attitude was the paradigm’s: that a theory which cannot survive translation into the practices it describes, seminar and courtroom included, has confessed a defect no purity could excuse. The reader will judge whether the attitude is serenity or the final, most elegant form of the affirmation the founders feared. What is not in doubt is the fact to be judged: alone among the Marxist tradition’s postwar heirs, this one left behind not a sect, a style or a set of slogans but a going intellectual concern, and the concern’s accounts are the ones this profile has been auditing.

The empirical posterity: deliberation measured

The strangest entry in the whole ledger may be the one posted by political science, a discipline the founders would have regarded as the enemy’s accounting department. From the nineteen nineties onward, the theory of deliberative democracy became an empirical research programme: deliberative polls that assemble citizens, brief them and measure how their judgements move under conditions approximating the theory’s presuppositions; discourse quality indices that code parliamentary debate for the very properties, justification, respect, openness to counterargument, that the theory’s presuppositions enumerate; and a shelf of studies on assemblies, juries, legislatures and mini-publics that treat the counterfactual standard as a set of design specifications and ask how closely real institutions can be made to approach them. The results are mixed in the way of honest empirics, and the theory’s critics within the programme are as severe as any outside it, documenting deliberation’s failures among the unequal and its capturability by the articulate. But the bare fact of the programme is a datum the founders’ posterity cannot match: no research group codes parliamentary speeches for their approximation to the negative dialectic. The paradigm substitution purchased, among its other goods, testability, a property the tradition had always regarded with suspicion as the positivist temptation, and the purchase has the ambiguity of all the theory’s successes. A standard that can be measured can also be administered, and the deliberation industry, with its facilitators and its metrics, sometimes resembles the colonisation of the lifeworld by the theory built to diagnose colonisation. The subject’s own position, characteristically, was to welcome the empirics and to insist on the remainder: the indices measure the conditions of discourse, and discourse itself, the event in which a reason actually moves a participant, remains the property of the participants and the standing reproach of every metric devised for it.

The Marxist objection: abandonment charged

The critics from inside the tradition have never lacked for a verdict, and their strongest form deserves the floor. On their reading, what this profile calls a substitution is a liquidation conducted by euphemism. A theory of capitalism that demotes production has demoted the one relation in which the system’s victims are made, and with it the one antagonism that cannot be talked away. Communicative action presupposes participants; capitalism produces them, unequally, in factories and offices and labour markets, and a theory that begins at the conversation begins after the decisive sorting has occurred. The colonisation thesis, on this reading, is the tell: it complains that the system invades the lifeworld, as if the lifeworld of a class society were an innocent garden prior to the invasion, when in fact the garden was always planted and fenced by the relations of production, its family forms, its schooling, its very interiority stamped by the economy it supposedly precedes. Axel Honneth, his most gifted successor and therefore his most dangerous critic, pressed the related charge from within the school’s own succession: that the system and lifeworld dualism writes power out of the lifeworld itself, treating interaction as if it were innocent of the struggles that actually constitute it, and that the labour whose paradigm was abandoned returns, unrecognised, as the unexamined work of social reproduction on which the sphere of pure communication silently rests.

The charge of political destination follows the theoretical one. A critical theory that ends by reconstructing the constitutional state, that describes legitimate law and deliberative procedure as emancipation’s institutional form, has made its peace with the existing order’s self-image, and the peace shows in the theory’s temperature: where the founders’ prose burned, the successor’s administers. Perry Anderson’s surveys of the Western Marxist tradition placed him at the end of a long trajectory in which the school’s Marxism thinned, generation by generation, into a philosophy of language and law whose practical horizon is the reform of liberal institutions by their own stated principles. On this account the retained column is a receipt for goods not delivered: the emancipatory intention survives as an intention precisely because nothing in the theory any longer obliges it to become an event. The profile’s verdict must be a ledger verdict, not a cheer. The critics are right about the mechanism, since the theory indeed contains no engine of transformation and says so. They are right that the system’s innocence is nowhere claimed but its boundary is drawn more cleanly than social life draws it, and the Honneth point about power inside the lifeworld has been absorbed by the literature rather than answered. Where the charge overreaches is in its premise that a critical theory without an engine is a contradiction: the founders themselves ended engineless, in negation, and the choice the second generation faced was not between an engine and none but between an engine that had demonstrably failed and an honesty about the failure, rebuilt as procedure. That judgement, that the honesty was worth its price, is the profile’s own, and a reader who reverses it has located the exact point at which assent to the whole construction is decided.

The idealisation objection: too clean a standard for a dirty world

From the other direction comes the objection that the framework is idealised past the point of use, and it is pressed by liberals, realists and communitarians in rare chorus. The presuppositions of discourse describe a conversation without domination; the world supplies conversations saturated with it, and the distance between the two is not a measuring gap but an abyss across which the theory gestures. Deliberation in actual democracies is brief, ill-informed, strategically framed and unequally voiced; procedures designed in the theory’s image risk laundering the inequalities they were meant to correct, since the articulate and the leisured deliberate best. The communitarian version adds that the participant who steps into discourse as the theory imagines, bracketing his formed attachments to test them, is a fiction of the theory’s own anthropology: real persons are their attachments, and a norm they could accept only by ceasing to be themselves has not been accepted by anyone who exists. Nancy Fraser’s classic intervention sharpened the point into an institutional programme: in stratified societies, she argued, a single public sphere operating on formally equal terms will systematically advantage the already advantaged, and subordinated groups do better to form subaltern counterpublics, parallel arenas where their idioms and interests can be formed before they are exposed to the general contest. Her conclusion was not a rejection of his framework but its radicalisation, and the 1990 revisions absorbed much of it, which is the strongest evidence that the framework can learn. The realist residue stands, however, and he has conceded its form if not its force: the theory is a reconstructive science of presuppositions, not a sociology of actual talk, and those who demand the second from the first have mistaken the instrument, as one would mistake a plumb line for a building.

There is also the colder, liberal objection, that the procedure is not neutral among outcomes: that discourse under ideal conditions is imagined, by its designer, to ratify the social democratic settlement he favours, and that the counterfactuality of the conditions lets the designer’s preferences travel in disguise. The objection has been put by friendly critics as sharply as by hostile ones, and the theory’s defence is the same one it gives everywhere, that the conditions are not chosen by the designer but reconstructed from the practice of argumentation as such, binding on the designer first. Whether reconstruction can bear that innocence is a genuinely open question in the literature, and a profile that closed it would be flattering its subject. Enter it in the ledger as a disputed item, flagged for the reader’s own audit: the right column’s most valuable asset, the claim that the critical standard is found rather than imposed, is also the asset whose title deeds are most contested.

The friendly critics: the theory corrected by its heirs

Between the Marxist prosecution and the liberal objection stands a third body of criticism, the most consequential for the theory’s actual development, because its authors share the paradigm and correct it from inside. Albrecht Wellmer, his closest philosophical associate, pressed two amendments that the later work absorbed. The first concerned truth: the consensus theory of the early essays, he argued, confused the meaning of truth with the criteria of its ascertainment, and the abandonment of that theory in the pragmatic turn bears the amendment’s mark. The second concerned the aesthetic, which Wellmer refused to leave as the weakest of the three validity provinces, arguing that art’s truth claim, its power to disclose a world rather than to state one, resists the discourse model and corrects the model’s rationalism from within the theory’s own household. Thomas McCarthy, whose exposition introduced the theory to the Anglophone world in 1978, pressed the complementary amendment from the side of method: the reconstructive programme, he argued, oscillates between a philosophical claim to universality and an empirical claim to fallibility, and the oscillation must be owned rather than concealed, a criticism the fallibilistic settlement of the Apel quarrel effectively concedes. Seyla Benhabib’s reformulation of the ethics added the concrete other to its generalised one, insisting that a discourse among abstracted participants must be answerable to the embodied others, with histories and attachments, who actually deliberate, and her version, universalism interactive rather than substitutionalist, is now the form in which much of the literature teaches the doctrine.

The friendly critics matter to the ledger for a methodological reason a profile should state. A theory that can be corrected by its friends, in public, on points its author then concedes and rebuilds, is exhibiting the virtue it attributes to its object: it is a discourse rather than a doctrine, and its history is the best evidence available that the paradigm describes a real practice and not merely a philosopher’s wish. The contrast with the tradition’s other successions is instructive. The first generation corrected itself in private letters and posthumous fragments; the orthodox Marxism of the parties corrected itself by expulsion. The second generation’s school corrected itself in journals its subject read and answered, and the corrections, on truth, on aesthetics, on method, on the concrete other, are load-bearing in the finished edifice this profile has described. When the Marxist objection charges that the theory describes a destination without a route, the history of its own composition is a partial exhibit for the defence: here, at least, is one institution, the republic of letters organised around a paradigm, in which undistorted communication about the theory of undistorted communication has demonstrably occurred, and in which the forceless force the theory postulates has moved, observably, the positions of powerful minds including its author’s.

The strongest objection, stated fairly

Every construction in this series is required to face the strongest case against itself, and for this one the case has a classical form. A theory that locates emancipation in the conditions of undistorted communication, the objection runs, has no account of the material interests that distort communication and no mechanism by which the powerful would consent to procedures that disadvantage them. Distortion is not weather. It is produced, daily and deliberately, by actors who profit from it: by owners whose media frame the agenda, by administrations whose categories govern what can be claimed, by the whole distribution of time, education and confidence that decides whose speech arrives as argument and whose arrives as noise. Against this production, the theory offers a standard and a presupposition. It can prove that the powerful, insofar as they argue at all, commit themselves to conditions their power violates. But the powerful are under no obligation to argue; they can rule, as they largely do, through the media the theory itself describes, money and administration, which coordinate without conversing, and the forceless force of the better argument is forceless indeed against an opponent who declines the game. The framework thus describes a destination without a route: it can specify, with unmatched precision, the society in which emancipation would consist, and it is silent, structurally silent, about the transition, since the only lever it permits itself, more and better communication, is precisely the resource the existing order controls.

The answer his work gives is partial, and its partiality should be stated as plainly as the objection. First, the colonisation thesis is itself the missing account of distortion’s materiality: distortion is not, in the theory, a failure of goodwill but the predictable result of media steering where steering does not belong, and the theory therefore has a political economy of distortion, located in the boundary relations of system and lifeworld, even if it has no single villain and no single remedy. Second, the theory’s history of the welfare state shows the route in its actual, unglamorous form: rights won, juridified, administered, and in the administration both secured and deformed, a dialectic of emancipation by instalments that the older catastrophism could neither predict nor value. Third, the public sphere’s siege model is a mechanism, modest but real: communicative power generated in the unsteered periphery has repeatedly forced themes onto agendas that money and office had closed, and the theory of law describes the sluices through which such pressure becomes binding decision. Then the concession, which the brief for this profile requires and the record supports: the optimism about procedure is the theory’s most contested feature, and the first generation would have regarded it as the point at which critique became affirmation. Adorno, who held that the whole is the false, would have read the faith in institutions’ self-correction as the administered world’s own ideology wearing the mask of its critic. That judgement cannot be refuted from inside the second generation’s premises, because it is a judgement about those premises. It stands in the ledger as the founders’ dissent, recorded against the largest asset in the right column, and the reader is left, as the theory itself leaves its citizens, with a claim to redeem by argument rather than by authority.

Misreadings corrected

Four misreadings patrol the border of this subject and should be turned back before the ledger is produced. The first files him as simply a liberal, a philosopher of rights and procedures who happens to have a Frankfurt biography. The filing fails on the retained column: no liberal theory known to the tradition makes the invasion of everyday life by market and bureaucracy its central pathology, reconstructs its politics as the defence of communicative social reproduction against systemic encroachment, and grounds its rights in a theory of society descended from the critique of political economy. The procedures are liberal in form; the diagnosis they serve is the school’s own. The second misreading finds a golden age in the public sphere study, a lost century of rational coffee-house conversation from which the present has fallen. The study itself blocks the reading: its sphere is bourgeois, exclusionary and brief, its universalism a promise the sphere’s own carriers betrayed, and its author’s later revisions widened the indictment rather than softening it. What is mourned in the book is not a past that existed but a standard its past invented and never met.

The third misreading hears communicative rationality as the claim that people are reasonable, and refutes it daily from the headlines. The concept claims nothing about people’s performance and everything about their presuppositions: rationality names the structure of validity built into speech oriented to understanding, the standing possibility of asking for reasons and the standing obligation to give them, and it survives every demonstration that the possibility is squandered, since squandering is one of the things the concept exists to describe. The fourth hears the ideal speech situation as a facilitation technique, a proposal for better meetings. It is a reconstruction of counterfactual presuppositions, closer to the grammar of a practice than to its agenda, and its use is critical, not organisational: it tells the analyst what to look for in a distorted discussion, the silenced claim, the rigged agenda, the authority answering in argument’s place. A fifth misreading, quieter and more scholarly, treats him as the first generation continued by other means. The ledger is the refutation: no continuation keeps the intention and replaces the foundation, the agent, the crisis theory and the verdict on reason all at once. What continued was the question. The answers are a new building, and this profile’s remaining task is to show the building’s accounts in one view.

The abandoned and retained ledger

The table below is the profile’s findable artifact, its argument in one view. Each row takes a commitment of the classical Marxist inheritance, records the verdict Habermas passed on it, names the work in which the verdict is executed, and states what stands in the commitment’s place in the finished theory. Read down the verdict column and the shape of the career appears: nothing is retained in its original form except the intention, nothing is abandoned without a successor being built, and the single operation that generates the pattern is the paradigm substitution, production exchanged for communication as the model of human self-formation.

Marxian commitment	Verdict	Where the turn is argued	What stands in its place
Human self-formation through labour	Abandoned as the single paradigm	Knowledge and Human Interests, then the essays on reconstruction	Self-formation through labour and interaction, finally through communication as the deeper medium
The proletariat as appointed agent of emancipation	Abandoned	The Theory of Communicative Action	No appointed agent; publics, movements and procedures carry change without guarantee
The critique of political economy as the theory’s core	Abandoned as core, kept as regional analysis	The Theory of Communicative Action, volume two	A two-storey theory in which the economy is one steered system among others
Historical materialism as a philosophy of history	Reconstructed	The reconstruction essays of the nineteen seventies	Social evolution as learning in two dimensions, stages ordered and arrival unguaranteed
The critique of ideology	Reconstructed	Knowledge and Human Interests, then the theory of communication	Systematically distorted communication, corrected by the presuppositions of discourse
Alienation as the master pathology	Reconstructed	The Theory of Communicative Action, volume two	The colonisation of the lifeworld by money and administrative power
The expectation of systemic breakdown	Abandoned	Legitimation Crisis	Crises displaced upward and managed, paid for in legitimacy and motivation
Reason identified with domination	Abandoned	The modernity address and the lectures on modernity’s philosophical discourse	Communicative rationality, reason’s procedural core surviving its instrumental career
Emancipation as the theory’s aim	Retained	Everywhere, from the first essays to the discourse ethics	Undistorted communication and legitimate law as the aim’s institutional translation
The unity of theory and practice	Reconstructed	Theory and Practice, then the discourse theory of law	Theory as a participant in public deliberation rather than an instructor above it

A table is a promise of precision, and this one should be used as the profile has used it: as an audit instrument, not a summary. Where a row seems to flatter the subject, the sections above the table carry the contested evidence, the critics’ entries against the assets, the founders’ dissent against the procedural faith, and the reader who checks the rows against the arguments will find the qualifications waiting. Ledgers do not settle arguments. They settle where the argument stands, which is the most a profile of a living body of work can honestly do.

The prose: difficulty as the form of the matter

A profile that has praised the clarity of the theory’s distinctions owes the reader a word about the obscurity of the theory’s sentences, since the two are the standing paradox of the reception: no living philosopher is more lucid in his architecture or more forbidding in his paragraphs. The difficulty has identifiable sources, and naming them is fairer than the usual alternatives of reverence and resentment. The sentences are long because their content is relational: a claim in this theory is never about an object alone but about an object under a description, for a participant, within a practice, against a background, and the prose declines to amputate the qualifications for the reader’s convenience. The vocabulary is abstract because its objects are abstract: presuppositions, media, validity dimensions and learning processes do not pose for portraits, and a writer who must discuss the conditions of all possible discussions cannot borrow the concreteness of discussing one. And the idiom is systematic, a private technical language built across a dozen books, so that the later volumes presuppose the earlier ones’ definitions in the manner of a science, which is what the theory claims to be. The fair verdict distinguishes the difficulty that is the matter’s from the difficulty that is the man’s, and finds most of it the matter’s. Where a relation is genuinely threefold, a sentence that renders it in a simple active voice has not simplified the thought but falsified it, and the tradition from which he descends has a formula for the point, coined by his teacher about a different music: the whole is the false, and prose that pretends otherwise, sentence by clean sentence, compounds the falsehood at the level of form. Readers are nevertheless owed the concession he himself made in practice, in the essays, interviews and lectures where the same doctrines appear in sentences of exemplary plainness: the difficulty is a choice of register, not a necessity of nature, and the choice is most defensible where the matter is thickest and least where habit has merely hardened. The routes in the next section are plotted accordingly, plain writings first, so that the reader meets the system in the register in which its author addresses publics before meeting it in the register in which he addresses the sciences.

How to read him: routes through a difficult shelf

The shelf is forbidding and the routes matter. Begin with the address on modernity as an unfinished project, twenty pages that contain the whole normative programme in oratorical form, and with the public sphere study, the most readable of the major books and the one whose category every subsequent argument presupposes. Proceed to the essays in which the reconstruction of historical materialism is proposed, available in the collection on communication and the evolution of society, where the two dimensions of learning and the farewell to guarantees are stated with a clarity the big books rarely match. The epistemology of 1968 can then be read as what it became, a scaffolding whose twin roots, labour and interaction, explain why the later building has the shape it does. The Theory of Communicative Action should not be attempted unaccompanied: take the first volume for the rationality distinction and the second for system, lifeworld and colonisation, and let a good exposition walk beside the argument the first time through. The discourse ethics is best met in the essays on moral consciousness and communicative action, short enough to argue with in a sitting. Between Facts and Norms rewards the reader who arrives last, since its system of rights and its two tracks gather the public sphere, the discourse principle and the theory of the state into a single constitutional architecture.

Three orientations will keep a reader from the standard shipwrecks. First, read him against the tradition he is revising, which this series maps in the frankfurt school complete guide: the abstraction of the prose is the price of arguments conducted simultaneously with Marx, Weber, Durkheim, Parsons and his own teachers, and a reader who knows the interlocutors finds the abstractions populated. Second, for the instrument his retained column refurbished, the ancestor of distorted communication in the older method, consult ideology critique method, where the classical procedure and its standpoint problem are laid out in the form his generation inherited. Third, for the neighbouring departures from the same inheritance, the thinkers who drew the opposite conclusion from the agent’s failure and dissolved the theory into the play of discourse and desire, see post marxism explained, whose subjects share his starting point and almost nothing else. The difficulty of the shelf is real and should be recorded without apology or romance: the sentences are long because the relations they carry are long, and the reward for the patience is a theory that can be argued with at every joint, which is more than can be said for clearer books that hide their joints.

A final route deserves recommendation precisely because supervisors rarely assign it: the interviews and dialogues, which fill several volumes across the decades and in which the theorist, questioned by informed interlocutors, restates the whole construction in the plain register described above, corrects misreadings in real time, and concedes, with a readiness the treatises’ architecture conceals, the points at which the construction is programmatic rather than complete. For the subjects of this profile the interviews have a further use. The question of the break with Marx was put to him directly, repeatedly, by interviewers of every camp, and his answers, consistent across forty years in substance while shifting in emphasis, are the primary documents against which the ledger in this article can be checked. He described himself, at various times, as a Marxist of a kind the century had made unrecognisable to its founders, as the tradition’s grateful and disobedient heir, and, in the formulation this profile judges the most exact, as a thinker who had radicalised the tradition’s question by surrendering its answer. A reader who finishes the treatises and then reads the interviews will find the man in agreement with the auditor’s verdict delivered below, which is either a reassurance or a warning about the seductions of self-interpretation, and in the spirit of the theory the reader is left to decide which, in discourse with the texts.

Coda: the auditor’s verdict

The profile opened with a promise to answer its test question with a ledger rather than a label, and the ledger can now be closed with the precision the opening demanded. He is not a Marxist in the doctrinal sense, and the doctrinal sense is the one the word usually carries: the paradigm of labour, the appointed agent, the breakdown, the philosophy of history and the critique of political economy as sovereign science are gone, and gone by his own argued decision, each with its reasons on the record. He is not a liberal in any sense the word can bear without breaking: the theory’s centre is a pathology of the market and the administrative state, its method is the critique of ideology rebuilt, its politics a demand that the systems answer to the conversations they steer, and its author spent six decades as the constitutional order’s most distinguished internal prosecutor rather than as its laureate. What he is, the ledger’s two columns state without remainder: the Marxist tradition’s reconstructive heir, the thinker who kept its question, its intention and its method of immanent criticism, and replaced everything else, on the stated ground that the question could no longer be honestly asked in the old paradigm’s terms. Traditions survive, when they survive, by exactly this operation, and they die, when they die, of heirs who prefer repetition to reconstruction. The series in which this profile stands has followed the operation through a dozen of the tradition’s successions, and none exhibits the pattern with the clarity of the present case, because none carried it out so completely, so explicitly, or at so great a length. The abandoned and retained ledger is offered to the reader as the pattern’s diagram. What the reader does with the pattern, in the continuing argument about what criticism is for, is the reader’s own entry to post.

For students and exam candidates

The examination version of this subject fails in predictable ways, and the ledger is the prophylactic. Answers go wrong when they fuse the two columns: when they report that he abandoned Marxism, full stop, and cannot say what the emancipatory intention is doing in a theory of constitutional law, or when they report that he continued critical theory, full stop, and cannot say why the proletariat, the breakdown and the philosophy of history are absent. Learn the test question with its checklist answer: the substitution, the two great abandonments that follow from it, the three retentions that survive it. Then learn the four exhibits an examiner expects to see handled: the public sphere with its exclusions and revisions, the colonisation thesis with one institutional example, the discourse test applied to a norm of your choosing, and the modernity address with its differentiation argument. The series’ own drill for the cluster is at frankfurt school exam answers, and the abandoned and retained ledger repays being kept as a revision card in the study template at VaultBook, one row per card, verdict side down.

For teachers and seminar leaders

The public sphere is the teaching gift of this corpus, a concept students can test against every communicative environment they inhabit, and the seminar version of the profile writes itself: one session on the 1962 study with its exclusions assigned as the prosecution brief, one on the 1990 revisions as an exercise in how a theory learns, one on the two-track model, with the class asked to trace a single grievance from first utterance to binding decision and to mark every sluice it passed or failed. The paradigm substitution teaches well as a comparison exercise, since a single seminar can set the labour paradigm’s account of a strike beside the communicative account and let the difference in what each theory can see make the argument. For the media studies syllabus, where the concept does its longest service, the companion study in this series is ideology and news media, and the strongest seminar of all may be the staged quarrel: assign the Marxist objection and the founders’ dissent to opposing benches, and let the class discover that the verdict on Habermas is a verdict on what a critical theory is for.

For researchers, historians, and journalists

Three open problems in the literature deserve a researcher’s notice. The title deeds of the critical standard, whether the presuppositions of argumentation are discovered by reconstruction or chosen by the reconstructer, remain the most contested philosophical item, with the Apel tradition defending a stronger grounding than the subject himself finally claimed. The power inside the lifeworld, Honneth’s charge that interaction in the theory is innocent of the struggles constituting it, has generated a successor literature on recognition and social pathology that researchers now treat as the school’s third generation arguing with its second. And the translation demand placed on religious citizens in the public sphere essays has opened a file in political theory where the ledger method applies neatly: what the secular state’s theory abandoned and retained, in its passage from the 1962 study to the postsecular essays, is a research question with its archive in print. For the generational frame, the comparison study at critical theory vs classical marxism sets the classical doctrine beside the school’s revisions, and for the deliberative destination toward which the retained column travels, see marxism and democracy critique. Journalists quoting the subject on any matter beyond the theory should note this profile’s boundary: it covers the published arguments, and only those.

Frequently Asked Questions

Q: Who is Jurgen Habermas?

A German philosopher and sociologist born in Dusseldorf in 1929, the leading figure of the Frankfurt School’s second generation. He served as Adorno’s assistant in the late nineteen fifties, held chairs at Heidelberg and Frankfurt, and directed a Max Planck institute at Starnberg for a decade. His early study of the public sphere made his reputation, and his later work rebuilt critical theory on the analysis of communication, producing theories of communicative action, discourse ethics and deliberative democracy. Across six decades he asked how emancipation remains possible after the classical Marxist answers failed, and he answered with procedures rather than prophecies.

Q: What is the public sphere?

The sphere in which private persons assemble as a public and subject the exercise of authority to reasoned discussion. It arose with the bourgeois society of the seventeenth and eighteenth centuries, in coffee houses, salons, reading societies and the press, and its governing fiction was radical: arguments were to count, not ranks, and any matter could in principle become a theme. The 1962 study that defined the concept also charted the sphere’s decay, as commercial media, organised interests and the welfare state converted citizens into audiences and clients. Its author later rebuilt the concept as an informal network of communication feeding formal institutions, influence flowing one way and decisions answering the other.

Q: What is communicative action?

Action coordinated through reaching understanding rather than through influence. When speakers act communicatively, they raise claims, that what they say is true, that it is right by the norms they share, that they mean it sincerely, and they accept that any claim may be challenged and must then be defended with reasons. Agreement reached this way binds because it is recognised, not because it is enforced or purchased. The contrasting mode is strategic action, where others are treated as obstacles and instruments. His claim is that the communicative mode is fundamental, since even manipulation must borrow the trust that understanding-oriented speech creates.

Q: What is the colonisation of the lifeworld?

The deformation that occurs when the economy and the administrative state, properly coordinated by money and power, extend those media into domains that can only reproduce themselves through communication. Families, schools, neighbourhoods and the culture of everyday life renew their meanings, solidarities and identities by talking, and when their affairs are reorganised as purchases and cases, the renewal fails in characteristic ways: persons become clients and consumers, needs are redefined by the agencies that compensate them, and meaning drains from contexts that files administer. The thesis is his successor to the older theory of alienation, relocating the characteristic damage of the age from the workplace to the boundary between system and everyday life.

Q: Why did Habermas abandon the labour paradigm?

Because it could not carry the theory built on it. The paradigm made production the sole medium in which human beings form themselves, and so it had to treat interaction, the sphere in which persons recognise one another, make norms and hold one another responsible, as a by-product of work. That left the theory unable to explain why norms bind, unable to furnish its own critical standpoint, and hostage to the destiny of a single class whose conduct refused the script. Studying language showed him a second medium, older than any factory and presupposed by cooperation itself. He concluded that the older paradigm had mistaken one province of human self-formation for the whole territory, and rebuilt accordingly.

Q: Is Habermas still a Marxist?

Only with a footnote the size of a chapter. The core mechanisms of the classical doctrine are gone from his work: no class is entrusted with history, no collapse is predicted, and the economy no longer supplies the key to every other sphere. What persists is the project’s animating impulse, the exposure of dominations that present themselves as natural, joined to a belief that social life can be rationally reorganised in the interests of the dominated. If Marxism names the doctrine, he left it. If it names the impulse and the lineage, he is its most systematic living heir, and the argument between those two definitions is the argument about him.

Q: What is the ideal speech situation?

A counterfactual construction from his essays on truth, naming the conditions speakers must presuppose when they argue in earnest: everyone capable of speech may participate, every claim may be introduced and questioned, every need may be voiced, and nothing counts except the unforced force of reasons. Nobody proposes it as an agenda for committees, and he later replaced the term with the soberer language of unavoidable presuppositions. Its purpose is measurement. By comparing an actual discussion against the standard its participants already accept in principle, criticism can identify exclusions and distortions without importing a foreign yardstick, and can call a rigged conversation rigged in the conversation’s own terms.

Q: Did Habermas break with Adorno?

Not personally, and only partly even in theory. He was Adorno’s assistant from 1956 to 1959, left the Institute after friction over his habilitation with Horkheimer rather than with Adorno, succeeded to Horkheimer’s chair in 1964 with the founders alive and the relationship intact, and remained in respectful correspondence until Adorno’s death. The divergence is doctrinal: he came to argue that a critique of reason which distrusts communication entirely contradicts itself in the act of publishing, since the critical text asks readers for understanding. Adorno located truth in the object’s resistance to concepts; the pupil located a residue of reason in the presuppositions of speech. It is a family quarrel conducted at the highest level, not a defection.

Q: What is the unfinished project of modernity?

The phrase comes from his 1980 address accepting the Adorno Prize in Frankfurt, and it names his refusal of his teachers’ despair. Modernity’s project, as he reconstructs it, is the Enlightenment’s wager that science, universal morality and law, and autonomous art would each develop by their own logic and together enrich the conduct of life. The wager, he argues, was never lost; it was honoured one-sidedly, with the cognitive and technical strands developed to giantism while the moral and expressive strands were left to experts and markets. The remedy is therefore not to abandon modernity for myth or nostalgia but to complete it, letting the rationality of mutual understanding discipline the rationalities of money and power.

Q: What is discourse ethics?

The moral theory he developed with Karl-Otto Apel, which grounds norms in the conditions of practical discourse. A norm is valid only if all persons affected by it could accept it, as participants in argumentation free from coercion, together with the consequences its general observance would have for each. The procedure does not issue commandments; it supplies a test that proposed norms must pass, shifting the moral point of view from the solitary conscience to a conversation that includes everyone concerned. It generalises the moral psychology of Kohlberg’s highest stage into a social procedure, and its defenders claim for it the unique virtue that anyone arguing against it must use it.

Q: How does the paradigm substitution keep the critical ambition while changing its base?

The ambition is emancipation from dependencies that human beings have made but do not recognise as theirs. In the old paradigm the dependency was located in production: men were ruled by their own alienated labour. In the new one the dependency is located wherever communication is systematically distorted or displaced, since a being formed in speech is unfree when the conditions of its speech are rigged. Changing the base therefore changes the map of domination, from the factory to every institution where reasons are replaced by prices, files and commands, but the critical operation is identical in form: find the self-made chain, show that it is self-made, and identify the practice in which it could be struck off.

Q: What should a student separate between the abandoned and the retained columns?

Separate mechanisms from intentions, and never let one column be graded by the other’s standards. The abandoned column holds the machinery: the labour paradigm, the appointed agent, the collapse prediction, the philosophy of history with its guarantees. The retained column holds the purposes the machinery once served: emancipation, the unmasking of domination disguised as nature, the insistence that ideas answer to the material organisation of life. Weak answers report a column and stop, declaring him apostate on the machinery or loyalist on the purposes. Strong answers state both, derive each abandoned mechanism from the substitution, and show each retained purpose at work inside the new construction, which is precisely the derivation an examiner is listening for.

Q: Why did the production paradigm reach its limit in his account?

Because cooperation itself refuted it. Production is never a solitary subject transforming nature; it is socially organised, divided, assigned and legitimated, and every one of those verbs names an achievement of interaction resting on shared norms and mutual recognition. The paradigm therefore presupposed, at every step, the very sphere it claimed to explain as a by-product. His account adds an empirical rider: the paradigm’s predictions ran through the class formed in production, and the administered capitalism of the postwar decades integrated that class, displaced its crises into politics and culture, and left the theory explaining a world that had stopped occurring. A model whose foundation is its own unexplained precondition, and whose forecasts fail with it, has reached its limit by its own standard.

Q: How does the public sphere work in the retained column?

It is the earliest exhibit of a retained commitment changing form under the substitution. In the 1962 study the sphere is a historical institution of the bourgeois world, judged by its own promise and found exclusionary. Retained is the function, a space where private persons become a public and authority must answer to reasons; abandoned is the institutional carrier, the educated property owner’s salon. In the theory of law the function returns as an informal, anarchic network of communication that detects problems and generates influence, while formal bodies decide. The category thus survives precisely by being detached from its first embodiment, which is the retained column’s general law: functions are kept, carriers are replaced.

Q: What did Habermas keep from the Frankfurt inheritance?

More than the quarrels suggest. He kept the founding question, why a civilisation of unprecedented productive and cultural power reproduces domination and calls it freedom. He kept the critique of ideology, translated into the diagnosis of distorted communication. He kept the refusal of positivism, the conviction that method conceals an interest and that the social sciences must know which one they serve. He kept the interdisciplinary ambition, rebuilding the theory with economics, law, psychology and linguistics as his teachers had reached for history and psychoanalysis. What he declined was the inheritance’s final testament, the identification of reason itself with domination, and he declined it in the name of the inheritance’s first promise: that criticism is possible.