People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

I generally think if you do good things for people in the world, that comes back and you benefit from it over time.

There are social restrictions where someone could be suppressing someone else's freedom to express themselves.

If there is a bug in your code than you have to drop everything you're doing and go fix it.

Companies face a handful of different risks, whether it is competitors or different market environments. But I think that people focus way too much on competitors and not enough on their own execution.

The trick isn't adding stuff, it's taking away.

The thing that we are trying to do at Facebook is just help people connect and communicate more efficiently.