“The constitution of madness as mental illness, at the end of the eighteenth century, bears witness to a rupture in a dialogue, gives the separation as already enacted, and expels from the memory all those imperfect words, of no fixed syntax, spoken falteringly, in which the exchange between madness and reason was carried out. The language of psychiatry, which is a monologue by reason about madness, could only have come into existence in such a silence.”

“Only those things are beautiful which are inspired by madness and written by reason.”

“A man does not kill himself, as is commonly supposed, in a fit of madness but rather in a fit of unendurable lucidity, in a paroxysm which may, if so desired, be identified with madness; for an excessive perspicacity, carried to the limit and of which one longs to be rid at all costs, exceeds the context of reason.”

“Doubt … is an illness that comes from knowledge and leads to madness.”

“The only reason I remembered this play was because it had a mad person in it, and everything I had ever read about mad people stuck in my mind, while everything else flew out.”

“There is always some madness in love. But there is also always some reason in madness.”

“In this century the writer has carried on a conversation with madness. We might almost say of the twentieth-century writer that he aspires to madness. Some have made it, of course, and they hold special places in our regard. To a writer, madness is a final distillation of self, a final editing down. It's the drowning out of false voices.”

“Humor is reason gone mad.”

“That in you which recognizes madness as madness (even if it is your own) is sanity, is the arising awareness, is the end of insanity.”

“In the history of madness, two events signal this change with singular clarity: in 1657, the founding of the Hôpital Général, and the Great Confinement of the poor; and in 1794, the liberation of the mad in chains at Bicêtre. Between these two singular and symmetrical events, something happened, whose ambiguity has perplexed historians of medicine: blind repression in an absolutist regime, according to some, and, according to others, the progressive discovery, by science and philanthropy, of madness in its positive truth. In fact, beneath these reversible meanings, a structure was taking shape, which did not undo that ambiguity but was decisive for it. This structure explains the passage from the medieval and humanist experience of madness to the experience that is our own, which confines madness in mental illness.”