The most important tool the artist fashions through constant practice is the faith in his ability to produce miracles when they are needed. Pictures must be miraculous; the instant one is completed, the intimacy between the creation and the creator is ended. He is an outsider. The picture must be for him, as for anyone experiencing it later, a revelation, an unexpected and unprecedented resolution of an eternally familiar need.
p. 168 - after 1970 / posthumous - 'Abstract Expressionism, Creators and Critics', 1990