"I'm a big proponent of space exploration, not just for scientific discovery, but for the inspiration it provides."

"We spend the first year of a child's life teaching it to walk and talk and the rest of its life to shut up and sit down."

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

"For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You'd be surprised how far you can get with those two."

"We are stardust. We are golden. We are billion-year-old carbon. And we've got to get ourselves back to the garden."