Facebook is a really exciting place trying to do something really important that I really believe in. And it matters.

The reason I don't have a plan is because if I have a plan I'm limited to today's options.

There is no such thing as work-life balance. There is work, there is life, and there is no balance.

Done is better than perfect.

At Facebook we feel a lot of affinity not just for this community but for any community that is trying to do what Davos is trying to do, which is to share information. And Davos is doing it in a particular way - I think the Facebook approach is obviously more broad-based, we're trying to include everyone in the world. But the goal is the same: bring people together, to share information and make the world more connected, and have people have a deeper understanding of themselves, others, the communities of which they want to be a part and can be a part.

When woman work outside the home and share breadwinning duties, couples are more likely to stay together. In fact, the risk of divorce reduces by about half when a wife earns half the income and a husband does half the housework.

There is no perfect fit when you're looking for the next big thing to do. You have to take opportunities and make an opportunity fit for you, rather than the other way around. The ability to learn is the most important quality a leader can have.