"I don't ever give up. I'd have to be dead or completely incapacitated."

"I don't spend my time pontificating about high-concept things; I spend my time trying to build things."

"The rumor that I'm building a spaceship to get away from my problems is completely false. I have no problems."

"I'm pretty good at not sleeping."

"I think it's important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better. I think that's the single best piece of advice: constantly…"