"I think it's important to have a sense of humor about the universe. It's a pretty absurd place, after all."

"The universe is a beautiful place, and it's full of wonders."

"I'm not afraid of death. I'm afraid of dying without having lived a full life."

"The universe is expanding. We are all expanding. Everything is expanding. What are you doing?"

"The greatest discovery is to find something you love to do and then figure out how to get paid for it."