"If you buy a ticket to Mars, you're buying a one-way ticket. There's no return. It's a very difficult journey. You may die. You may die on the way there. You may die after you get there. You'll probab…"

"I think we should be very careful about AI. If I had to guess at what our biggest existential threat is, it's probably that. So we need to be very careful with AI."

"I think it's important to have a good sense of purpose. You need to know why you're doing what you're doing."

"I think that the future is going to be very different from the past, and I'm very excited about it."

"I think we should be doing everything we can to make life multi-planetary."