"You know, the nice thing about science is that it’s an equal-opportunity destroyer of belief systems."

"The universe is a dangerous place. It's full of black holes and gamma-ray bursts."

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

"If you are scientifically literate, the world looks very different to you, and that difference, I think, is a difference for the better."