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.

My number one piece of advice is: you should learn how to program.

Our strategy is very horizontal. We're trying to build a social layer for everything. Basically we're trying to make it so that every app everywhere can be social whether it's on the web, or mobile, or other devices.

The companies that work are the ones that people really care about and have a vision for the world so do something you like.

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.

I like to pride myself on thinking pretty long term, but not that long term.

Our mission is to make the world more open and connected. We do this by giving people the power to share whatever they want and be connected to whoever they want, no matter where they are.