Madness and Reason
"In the midst of the serene world of mental illness, modern man no longer communicates with the madman: on the one hand is the man of reason, who delegates madness to the doctor, thereby authorising no relation other than through the abstract universality of illness; and on the other is the man of madness, who only communicates with the other through the intermediary of a reason that is no less abstract, which is order, physical and moral constraint, the anonymous pressure of the group, the demand for conformity. There is no common language: or rather, it no longer exists; 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."
Michel Foucault, History of Madness
(Translated by Jonathan Murphy and Jean Khalfa, Routledge 2006)