"There are no rules in science, only facts."

"You know, the most amazing thing happened to me tonight... I saw the brightest star in the sky. And it was moving!"

"The great thing about science is that it's a way of not fooling yourself."

"I asked him once, 'How do you tell when a mathematical argument is correct?' He said, 'If it's beautiful, it's correct.'"

"The only way to do great work is to love what you do."