"I think we should be pushing the boundaries of what's possible."

"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…"

"I think it's important to have a good sense of timing. You need to know when to act and when to wait."

"I'm a free speech absolutist."

"If I can convince enough people that Mars is a good idea, then it will happen."