We have this handy fusion reactor in the sky called the sun, you don't have to do anything, it just works. It shows up every day.

The idea of lying on a beach as my main thing just sounds like the worst. It sounds horrible to me. I would go bonkers. I would have to be on serious drugs. I'd be super-duper bored. I like high intensity.

I read books and talked to people. I mean that's kind of how one learns anything. There's lots of great books out there & lots of smart people.

I’m nauseatingly pro-American. I would have come here from any country. The U.S. is where great things are possible.

Weighing too much on someone's talent and not someone's personality. I think it matters whether someone has a good heart.

Physics is a good framework for thinking. ... Boil things down to their fundamental truths and reason up from there.

Mars is the only place in the solar system where it's possible for life to become multi-planetarian.