"Religion is a culture of faith; science is a culture of doubt."

"The game is to find out how nature works."

"Physicists are like little children, they want to know how the world works. But they're not content to just wonder. They want to open up the toy and see what's inside."

"The fact that I can even ask the question, 'What is the mind?' means that the mind is a part of the universe."

"I would rather have a world with five billion people that didn't know how to read than a world with five billion people that all knew how to read and all thought the same thing."