Michel Foucault (1926–1984) is the most cited author in the social sciences and humanities, and probably the most misrepresented. He rejected almost every label applied to him — structuralist, post-structuralist, postmodernist, historian, philosopher — and his work changed direction at least twice.

What holds it together is a single reversal, and it is the thing worth taking from this lesson: power does not principally forbid. It produces.

Power/knowledge

Discipline and the panopticon

Discipline and Punish (1975) is his most read book and the source of the concepts most used in sociology.

Disciplinary power operates through identifiable techniques, and this is the part most useful to sociologists:

The distribution of bodies in space — enclosure, partitioning (each individual in their place), functional sites, and rank. The classroom with assigned desks; the hospital ward; the factory floor; the open-plan office.

The control of activity — the timetable, the temporal elaboration of the act, the correlation of body and gesture, and the exhaustive use of time. Taylorism (4.1.4) as a disciplinary technology.

The organisation of genesis — dividing training into stages, with exercises of graduated difficulty and examinations at each threshold.

The composition of forces — assembling individuals into an efficient machine, as in the drilled infantry unit.

Biopower and governmentality

The later work, and the part most useful for political sociology.

Go deeper

Sexuality, and the repressive hypothesis

The History of Sexuality, Volume 1 (1976) contains his most counterintuitive argument.

(Historians of sexuality have complicated this. Some evidence of earlier subcultures and self-understandings — the London molly houses of the early eighteenth century, for instance — suggests the discontinuity is less sharp than Foucault claimed. The general point about the production of identity categories has held up better than the specific dating.)

The criticisms

Where is agency? If subjects are produced by discourse, who resists and on what basis? Foucault insists resistance is coextensive with power, and critics reply that this is asserted rather than explained. Charles Taylor and others argue that critique requires a standpoint, and that Foucault's framework denies him one.

The Habermas objection (5.4.2), and it is the sharpest. If all discourse is power-saturated and there are no criteria of validity independent of a regime of truth, why is Foucault offering arguments rather than simply exercising power? Habermas called this a "cryptonormativism": Foucault's work is plainly indignant about prisons, asylums and psychiatry, and the indignation requires normative grounds his theory forbids. Foucault died in 1984 before a direct exchange could occur, and the confrontation has been conducted by proxies ever since.

The history is unreliable in places. Madness and Civilization has been challenged extensively by historians of psychiatry — on the scale of the "great confinement," on the dating, and on the characterisation of pre-modern attitudes to madness. H. C. Erik Midelfort's critique is the standard reference. Foucault's response, in effect, was that he was writing philosophical history, which is a defence some historians accept and others regard as an evasion.

Feminist critiques are mixed and productive. Some — Sandra Bartky, Susan Bordo — found the disciplinary framework enormously useful for analysing how femininity is produced through practices on the body. Others — Nancy Hartsock — argued that a theory dissolving the subject arrives just as previously silenced groups are claiming subjecthood, which is unfortunate timing at best.

And the political ambivalence. Foucault's analysis of how welfare, medicine and social work operate as disciplinary systems was taken up by critics of the welfare state from several directions, including some he would not have chosen. His own late interest in neoliberalism — the 1979 Collège de France lectures — has generated a substantial and contested literature about whether he was analysing it or partly attracted to it.

What sociology took

Discourse analysis as a method, in several forms (7.4).

The production of categories. The entire literature on how kinds of person are made — Ian Hacking's "making up people" and his concept of the looping effect, in which classified people change in response to being classified, thereby altering the classification. This is Foucault made precise, and it is one of the best ideas in the philosophy of social science.

Surveillance studies as a field, with the qualifications above.

Governmentality studies — Nikolas Rose, Peter Miller and others, on advanced liberal government, responsibilisation, audit and the government of the self. This has been enormously productive in the sociology of health, welfare, education and risk.

The sociology of the body and of medicine — medicalisation, the clinical gaze, and the constitution of the patient.

And a permanent methodological question: what would happen if we asked, of any category we use, when was this produced, by whom, in what discourse, for what administrative purpose, and what happened to the people sorted into it?

Why it matters

It reverses the question about power, from who has it to how does it operate and what does it produce. That reversal makes visible a range of phenomena — professional expertise, classification, record-keeping, self-improvement, audit, therapeutic culture — that the possession model cannot see at all.

It makes categories historical. Every category of person a society uses was produced somewhere, by someone, in a discourse, for a purpose. Asking when and why is one of the most productive moves available, and Hacking's looping effect shows that the categories then change the people in them.

It puts sociology inside its own picture. The census, the survey, the rate and the case file are biopolitical instruments, and a discipline that produced them cannot analyse governmentality as though it were standing outside it. That is uncomfortable and correct.

And it poses the hardest question in this Part. If subjects are produced by the discourses that describe them, what is left of the person who resists — and what grounds does the critic stand on? Foucault did not answer this, Habermas pressed it, and the standing tension between them is the most important unresolved argument in late twentieth-century social theory.