"I'm a scientist. I don't believe in anything. I just believe in evidence."

"The best thing about being a scientist is that you get to ask 'why?' all the time."

"The greatest discovery in science is the discovery of ignorance."

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

"The universe is not just stranger than we imagine, it is stranger than we can imagine."