Simply put: we don't build services to make money; we make money to build better services.

Don't discount yourself, no matter what you're doing.

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

When I started Facebook from my dorm room in 2004, the idea that my roommates and I talked about all the time was a world that was more open.

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 often say that it is easier to predict the way things are going to be 10 to 20 years in the future than to predict how it is going to be 3 years from now.

You hear these stories about people who take apart their radio and put it back. Or just learn a lot from taking it apart. But I wasn't as into that stuff as I was just into how computer programs work.