I don't have an alarm clock. If someone needs to wake me up, then I have my BlackBerry next to me.

If you don't risk anything you risk everything

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

The unsupervised learning is the way most people will learn in the future. You have this model of how the world works in your head and you're refining it to predict what you think is going to happen in the future.

In a lot of ways Berlin is a symbol for me of Facebook's mission: bringing people together, connecting people and breaking down boundaries.

We're really at this point where we can take a step back and think about the next big things that we want to do.

Connecting the world is really important, and that is something that we want to do. That is why Facebook is here on this planet.