"If aliens ever visit us, I think the outcome would be much as when Columbus landed in America, which didn't turn out very well for the Native Americans."

"I don't have a problem with people believing in anything they want to believe in. I have a problem with people telling me what I should believe in."

"I would be a lot more comfortable if I could be assured that the people who say 'I'm a Christian' actually lived by the tenets of Christianity."

"You know, the universe is a pretty big place. It's much bigger than people realize. And sometimes, you just gotta look up."

"We are all connected. To each other, biologically. To the Earth, chemically. To the rest of the universe, atomically."