I know that I'm never as good or bad as any single performance. I've never believed my critics or my worshippers, and I've always been able to leave the game at the arena.
“I love mixing with comedians when I'm working with them, but when I'm not I don't feel the need to hang around with them.”
“It was at this moment that I wrote my first important paper in theoretical physics. I was 32 years old, 5 years beyond the alleged age of senility for theorists.”