Selling an electric sports car creates an opportunity to fundamentally change the way America drives.

I would like to die on Mars. Just not on impact.

If anyone thinks they'd rather be in a different part of history, they're probably not a very good student of history. Life sucked in the old days. People knew very little, and you were likely to die at a young age of some horrible disease. You'd probably have no teeth by now. It would be particularly awful if you were a woman.

Silicon Valley has some of the smartest engineers and technology business people in the world.

I'd like to dial it back 5% or 10% and try to have a vacation that's not just e-mail with a view.

And we need things in life that are exciting and inspiring. It can't just be about solving some awful problem. There have to be reasons to get up in the morning.

I think we should be very careful about artificial intelligence. If I had to guess at what our biggest existential threat is, it's probably that. So we need to be very careful...With artificial intelligence we're summoning the demon.