The last six years have been a lot of coding and focus and hard work. But maybe it would be fun to remember it as partying and all this crazy drama.

I try to shrug it off as a minor annoyance that whenever I do something successful, every capitalist out there wants a piece of the action.

This is a perverse thing, personally, but I would rather be in the cycle where people are underestimating us. It gives us latitude to go out and make big bets that excite and amaze people.

The question isn't, 'What do we want to know about people?', It's, 'What do people want to tell about themselves?'

I think there's confusion around what the point of social networks is. A lot of different companies characterized as social networks have different goals - some serve the function of business networking, some are media portals. What we're trying to do is just make it really efficient for people to communicate, get information and share information.

If you're always under the pressure of real identity, I think that is somewhat of a burden.

If you recognize that self-driving cars are going to prevent car accidents, AI will be responsible for reducing one of the leading causes of death in the world.