I do both: I make preliminary drawings, other times I paint directly, other times I start a painting and then paint it out so that it becomes another painting or nothing at all. If a painting doesn't work, throw it out. When I work from preliminary sketches, I don't just enlarge these drawings, but plan my areas in a large painting by using small drawings for separate areas. I combine them in a final painting, often adding to or subtracting from the original sketches.... There are certain canvases here in my studio - the little one over there – that I've worked on for a good six months – painting most of it out and then painting it over and over again. I think I've got it now.

(1958) - In: Talks with Seventeen Artists, 1962