What is Freud's single greatest contribution?
Freud already answered this question, of course, when he said that whereas Darwin decentered the human animal from the apex of creation, Copernicus decentered the earth from the center of the universe, Freud had decentered humanity in itself. No longer was the human immanent. Lacan’s answer is perhaps even better: “That is why the unconscious was invented—so that we would realize that man’s desire is the Other’s desire, and that love, while it is a passion that involves ignorance of desire, nevertheless leaves desire its whole import”...