"Earth is a small planet, and we are not alone. We are not alone in the universe, and we are not alone on this planet."

"The universe is a place of wonder. And we are all part of that wonder."

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

"Science is not a battle between good and evil. It's a battle between ignorance and knowledge."

"The universe is a vast and lonely place. But it's also beautiful."