"Physics is like sex: sure, it may give some practical results, but that's not why we do it."

"I feel that if a man has a problem, it's not solved unless he understands it."

"I got a dollar for my patent! I give it to everybody. Result: everybody who has one of these patent because it was easy a lot of people had been sending things in lots of patents. Everybody come down …"

"I'd hate to die twice. It's so boring."

"I have often thought that if I were to be reborn, I'd like to be a biologist."