And since the beginning always proceeds by twos this is even the necessary condition for rendering escape impossible a first pre oedipal beginning is invoked, the primitive nondifferentiation of the most precocious stages of the personality in the relationship with the mother; then a second beginning is invoked; Oedipus itself with the law of the father and the exclusive differentiations that this law prescribes at the heart of the family; and finally latency, the celebrated latency, after which the beyond begins.