"I'm a big believer in a multi-planetary species. I think it's important for the long-term survival of humanity."

"If something is important enough, you should try even if the probable outcome is failure."

"I think that the future is going to be very exciting, and I'm very optimistic about it."

"If you're trying to create a company, it's like, it's a lot like baking a cake. You have to have all the ingredients in the right proportion."

"I think the biggest risk is not taking any risk. In a world that's changing really quickly, the only strategy that is guaranteed to fail is not taking risks."