I always had a repulsive sort of need to be something more than human. I felt very very puny as a human. I thought, "Fuck that. I want to be a superman."
Source, in full
Quoted in this interview in Rolling Stone #206 (12 February 1976); a slightly altered version of the quote has appeared in various sources such as Fas Ferox - A Modern Day Mythology - World Walkthrough (2006), edited by Anna Young and James Curcio: "I always had a repulsive need to be something more than human. I felt very puny as a human. I thought, 'Fuck that. I want to be a superhuman.'"