With artificial intelligence, we are summoning the demon. In all those stories where there's the guy with the pentagram and the holy water, it's like, yeah, he's sure he can control the demon. Didn't work out.

In order to have your voice be heard in Washington, you have to make some little contribution.

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

One bit of advice: it is important to view knowledge as sort of a semantic tree - make sure you understand the fundamental principles, ie the trunk and big branches, before you get into the leaves/details or there is nothing for them to hang on to.

If you had to buy a new plane every time you flew somewhere, it would be incredibly expensive.

The extension of life beyond Earth is the most important thing we can do as a species.

If you get up in the morning and think the future is going to be better, it is a bright day. Otherwise, it’s not.