Self-driving cars are the natural extension of active safety and obviously something we should do.

I hate writing about personal stuff. I don't have a Facebook page. I don't use my Twitter account. I am familiar with both, but I don't use them.

Engineering is the closest thing to magic that exists in the world.

Life is too short for long-term grudges.

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.

Mars is the only place in the solar system where it's possible for life to become multi-planetarian.

I think that's an important thing to do, to really pay attention to negative feedback, and solicit it, particularly from friends. This may sound like simple advice, but hardly anyone does that, and it's incredibly helpful.