I carry Yeats with me wherever I go. He's my constant companion. I always can find some comfort in Yeats no matter what the situation is. Months and months and months go by and I know I need to switch to Shelley or somebody else, but right now Yeats is enough for me.
When I got finished, Gershwin paid me the ultimate compliment. He said, 'Boy, even I couldn't do that.'
Beauty is the first test: there is no permanent place in the world for ugly mathematics.