Facebook was not originally created to be a company. It was built to accomplish a social mission - to make the world more open and connected.

Having two identities for yourself is an example of a lack of integrity.

I don't hate anybody. The Winklevi aren't suing me for intellectual property theft. They're suing me because for the first time in their lives, the world didn't work the way it was supposed to for them.

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.

I think that people just have this core desire to express who they are. And I think that's always existed.

Our goal is not to build a platform; it's to be cross all of them.

Connecting everyone is going to be something that no single company can do by themselves. So I'm really glad that they and a lot of other companies are working on this.