"I'm not a fan of the idea of 'alternative facts.' Facts are facts. There's no alternative to them."

"If you're not learning, you're not living."

"You know, the universe is a pretty big place. If it's just us, seems like an awful waste of space."

"I'm not a fan of dogma. I prefer to let the evidence speak for itself."

"The greatest discovery is to find something you love to do and then figure out how to get paid for it."