[SE]

Within psychoanalysis, this knowledge of drive which can never be subjectivized assumes the form of knowledge of the subject's "fundamental fantasy," the specific formula which regulates his or her access to jouissance. That is to say, desire and jouissance are inherently antagonistic, exclusive even: desire's raison d'etre (or "utility function," to use Richard Dawkins's term) is not to realize its goal, to find full satisfaction, but to reproduce itself as desire.

-Slavoj Žižek

appearing in UMBR(A)