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

People think innovation is just having a good idea but a lot of it is just moving quickly and trying a lot of things.

The question isn't, 'What do we want to know about people?', It's, 'What do people want to tell about themselves?'

We have a pretty ambitious goal for the world. What we think will make the Web better. What we think will make all these businesses that integrate with us run more effectively. I think if we stay focused on doing that, that's really the main thing that we need to do.

The unsupervised learning is the way most people will learn in the future. You have this model of how the world works in your head and you're refining it to predict what you think is going to happen in the future.

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

It's not because of the amount of money. For me and my colleagues, the most important thing is that we create an open information flow for people. Having media corporations owned by conglomerates is just not an attractive idea to me.