"I'm an educator. I'm a scientist. I'm a communicator. I'm not a politician."

"I'm just trying to get people to think about the universe in a different way."

"Science is not a body of facts. Science is a way of thinking."

"I don't think there's any such thing as a 'dumb question' when it comes to science. There are just questions that reveal a lack of information."

"The most important thing about science is that it's self-correcting. Religion is not."