Move fast and break things. Unless you are breaking stuff, you are not moving fast enough.

I do everything on my phone as a lot of people do.

If you think about companies that were built in Silicon Valley, a lot of them early on were chip companies. And now the companies that are there, like Apple, are much more successful than any of the chip companies were.

What really motivates people at Facebook is building stuff that they're proud of.

This is our commitment to users and the people who use our service, is that Facebook's a free service. It's free now. It will always be free. We make money through having advertisements and things like that.

I know it sounds corny, but I’d love to improve people’s lives, especially socially… Making the world more open is not an overnight thing. It’s a ten-to-fifteen-year thing.

I think people tend to be worried about every new technology that comes along.