"I think a lot of people will be surprised by how quickly we can get to Mars."

"I hope you don’t think I’m trying to be manipulative. I’m not. I’m just trying to make sure that humanity has a future."

"I'm trying to do things that are important and that will make a difference in the world."

"The greatest danger is not that we aim too high and miss, but that we aim too low and hit."

"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…"