"I don't have to be consistent."

"I don't understand the world in the way that I think other people claim to understand it."

"When I was in high school, I'd read about the great scientists and I was ashamed that I was not a great scientist. I used to think, 'What's the matter with me? I'm not a great scientist.'"

"What do you care what other people think?"

"I'm not interested in science for the sake of science. I'm interested in science for the sake of understanding the world."