Michel Foucault (1926–1984) was a French philosopher and historian of ideas. He wrote pathbreaking histories of madness, medicine, punishment, and sexuality, arguing that what a society treats as knowledge is bound up with how it exercises power. His books, among them The Order of Things, Discipline and Punish, and The History of Sexuality, made him one of the most influential and most contested thinkers of the late twentieth century.
We like to think that modern life left the whip and the branding iron behind. Foucault's unsettling reply was that power did not fade; it grew quieter and slipped inside us. The exam, the timetable, the case file, the label 'normal' train people to police themselves, with no guard in sight. And he built this argument not from grand theory but from the dusty paperwork of asylums, hospitals, and jails.