Building a mission and building a business go hand in hand.

I would only hire someone to work directly for me if I was willing to work for that person.

All of my friends who have younger siblings who are going to college or high school - my number one piece of advice is: You should learn how to program.

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

It's tough to say, exactly, what things will look like in three to five years, but there's a lot of work to do in just moving along the path that we've already set out.

It is really important for us that people understand what the strategy is and that the real approach is to make everything social, not to build a vertical approach.

The only meat I eat is from animals I've killed myself.