Sadism appears at the very moment that unreason, confined for over a century and reduced to silence, reappears, no longer as an image of the world, no longer as a figura, but as language and desire. And it is no accident that sadism, as an individual phenomenon bearing the name of a man, was born of confinement and, within confinement, that Sade’s entire oeuvre is dominated by the images of the Fortress, the Cell, the Cellar, the Convent, the inaccessible Island which thus form, as it were, the natural habitat of unreason.