From JB’s Gender Trouble. 1990. page 64.
The young boy and young girl who enter into the Oedipal drama with incestuous heterosexual aims have already been subjected to prohibitions which “dispose” them in distinct sexual directions. Hence, the dispositions that Freud assumes to be primary or constitutive facts of sexual life are effects of a law which, internalized, produces and regulates discrete gender identity and heterosexuality.
– Far from foundational, these dispositions are the result of a process whose aim is to disguise its own genealogy.
– In other words, “dispositions” are traces of a history of enforced sexual prohibitions which is untold and which the prohibitions seek to render untellable.
The narrative account of gender acquisition that begins with the postulation of dispositions effectively forecloses the narrative point of departure which would expose the narrative as a self-amplifying tactic of the prohibition itself.
In the psychoanalytic narrative, the dispositions are trained, fixed, and consolidated by a prohibition which later and in the name of culture arrives to quell the disturbance created by an unrestrained homosexual cathexis.
Told from the point of view which takes the prohibitive law to be the founding moment of the narrative, the law both produces sexuality in the form of “dispositions” and appears disingenuously at a later point in time to transform these ostensibly “natural” dispositions into culturally acceptable structures of exogamic kinship.
In order to conceal the genealogy of the law as productive of the very phenomenon it later claims only to channel or repress, the law performs a third function: Instating itself as the principle of logical continuity in a narrative of causal relations which takes psychic facts as its point of departure, this configuration of the law forecloses the possibility of a more radical genealogy into the cultural origins of sexuality and power relations (64-65).