I made so many mistakes in running the company so far, basically any mistake you can think of I probably made. I think, if anything, the Facebook story is a great example of how if you're building a product that people love you can make a lot of mistakes

The most important thing is to keep your team as small as possible.

I generally think if you do good things for people in the world, that comes back and you benefit from it over time.

While we generally believe in free speech and giving everyone as much ability to speak as possible, in practice there are lots of barriers to that, whether it's legal restrictions, technological restrictions or you can't share what you want if you don't have access to the internet.

The web is at a really important turning point right now. Up until recently, the default on the web has been that most things aren’t social and most things don’t use your real identity. We’re building toward a web where the default is social.

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

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