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

"I don't think there's any such thing as a 'best' way to do anything. There's just what works."

"What I cannot create, I do not understand."

"I was very surprised when I got the Nobel Prize. I didn't think I deserved it."

"I don't think I'm a very good teacher. I just try to explain things clearly."