"I was very surprised that a lot of artists, when they found out I was a scientist, they would start telling me about their theories of the universe, and they were always crackpot theories."

"The thing that bothers me is that I can tell that the students don't understand. They are taught to remember things, but they don't understand."

"The thing that I cannot understand is what I cannot create. And I can't create a universe. So I don't understand the universe."

"Why do you suppose that, when you are not speaking English, you speak with an accent?"

"I'm not a serious fellow."