"If I had a superpower, it would be to make everyone scientifically literate. Imagine the world we'd live in."

"The universe is a hostile place. It wants to kill you. But it's also beautiful, and it's worth fighting for."

"I'm often asked, 'What is the meaning of life?' I don't know, but I think that the search for meaning is a good meaning to have."

"I'm not afraid of questions. I'm afraid of people who don't ask questions."

"The universe is a symphony, and we are the audience."