"Science is not everything, but science is very beautiful."

"Any man whose errors take ten years to correct is quite a man."

"When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic …"

"We have to find a way to transcend the fear and the hatred that led to the creation of the atomic bomb."

"If I had to choose between the two evils, I would rather have a world with no nuclear weapons than a world with nuclear weapons."