"I was born not knowing and have had only a little time to change that here and there."

"I would rather have questions that can't be answered than answers that can't be questioned."

"You have no responsibility to live up to what other people think you ought to accomplish. I have no responsibility to be like what they expect me to be. It's their mistake, not my failing."

"What one fool can do, another can."

"I was talking to a guy who was a philosopher, and he said, 'But you're just describing the world, you're not explaining it.' And I said, 'Yeah, that's what science is. We describe it. We don't explain…"