"I don't have a favorite planet. They're all my children."

"My ideal day involves a lot of reading, a lot of thinking, and a lot of looking up at the stars."

"I think the universe is trying to tell us something, and we're just not listening."

"My goal is to get people to think about the universe, not just about themselves."

"I often think about how small we are in the grand scheme of things, and it makes me feel both humbled and empowered."