"I'm often asked if I believe in UFOs. I'm like, 'Yeah, I do. I believe in Unidentified Flying Objects.' It's just that I don't believe they're aliens."

"I don't believe in magic. I believe in physics."

"If you're scientifically illiterate, you're a danger to yourself and society."

"If you want to assert a truth, first make sure it's not just an opinion that you desperately want to be true."

"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."