Who is speaking? Who, among the totality of speaking individuals, is accorded the right to use this sort of language? Who is qualified to do so? Who derives from it his own special quality, his prestige, and from whom, in return, does he receive if not the assurance, at least the presumption that what he says is true? What is the status of the individuals who - alone - have the right, sanctioned by law or tradition, juridically defined or spontaneously accepted, to proffer such a discourse? 

Michel Foucault