"If you don't know how to think, you're a victim of those who do."

"For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You'd be surprised how far you can get with those two."

"The universe is not just big. It's vast."

"The universe is far more interesting than any human-made myth."

"I don't have a problem with people believing in God. I have a problem with people who believe in God and use that as an excuse to be ignorant."