Mark Zuckerberg

Our role is to be a platform for making all of these apps more social, and it's kind of an extension of what we see happening on the web, with the exception of mobile, which I think will be even more important than the web in a few years - maybe even sooner.

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. So inherently, our whole approach has to be a breadth-first approach rather than a depth-first one.

I think what we've found is that when you can use products with your friends and your family and the people you care about, they tend to be more engaging. I think that we're really going to see this huge shift where a lot of industry is and products are just going to be remade to be social.

Games is probably the biggest industry today that has gone really social, right. I mean, the incumbent game companies are really being disrupted and are quickly trying to become social. And you have companies like Zynga.

Facebook was not originally created to be a company. It was built to accomplish a social mission - to make the world more open and connected.

The community - more than two billion people use our products, and we get that, with that, a lot of people are using that for a lot of good, but we also have a responsibility to mitigate the darker things that people are gonna try to do.

When I was in college I did a lot of stupid things and I don't want to make an excuse for that. Some of the things that people accuse me of are true, some of them aren't. There are pranks, IMs.

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.

We're very focused on making News Feed really good, making our photos experience really good, making messaging really good, and creating great location apps. That's the nature of a platform business of our scale. Most companies that are relevant to us will have some overlaps in some competitive way.

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. It really makes a big difference.

Open Graph is a language for structuring content and sharing that goes on in other apps, and we're continuing to build it out longer term. But we found we need to build more specific experiences around categories like music or movies. Where we've taken the time to build those specific experiences, stuff has gone quite well.

I spend a lot of time just, you know, with my girlfriend and my dog. And I mean, we don't have a lot of furniture in our house, so it's really simple. And we're trying to build products for everyone in the world, right. And you don't want to get isolated to do that.