Whenever I go to a new city, in order to help get on the right time zone and actually get a chance to see that city, I like running.

When people are connected, we can just do some great things. They have the opportunity to get access to jobs, education, health, communications. We have the opportunity to bring the people we care about closer to us.

People at Facebook are fairly used to the press being nice to us or not nice to us.

In a world that's changing so quickly, you're guaranteed to fail if you don't take any risks.

The question I ask myself like almost every day is: ‘Am I doing the most important thing I could be doing?' Unless I feel like I’m working on the most important problem that I can help with, then I’m not going to feel good about how I’m spending my time. And that’s what this company is.

There are a few other things that I built when I was at Harvard that were kind of smaller versions of Facebook.

If things aren’t breaking, then you’re not moving fast enough. People learn by making mistakes.