Openness fundamentally affects a lot of the core institutions in society - the media, the economy, how people relate to the government and just their leadership.

When I'm introspective about the last few years I think the biggest mistake that we made, as a company, is betting too much on HTML5 as opposed to native... because it just wasn't there. And it's not that HTML5 is bad. I'm actually, on long-term, really excited about it. One of the things that's interesting is we actually have more people on a daily basis using mobile Web Facebook than we have using our iOS or Android apps combined. So mobile Web is a big thing for us.

What Facebook stands for in the world is giving people a voice and spreading ideas and rationalism.

The primary things that people do on the Facebook is they use it to share with their friends and the people around them and their community, and they use it to keep in touch with people.

So many businesses get worried about looking like they might make a mistake, they become afraid to take any risk. Companies are set up so that people judge each other on failure. I am not going to get fired if we have a bad year. Or a bad five years. I don’t have to worry about making things look good if they’re not. I can actually set up the company to create value.

If we want to have the biggest impact, the best way to do this is to make sure we always focus on solving the most important problems.

Having two identities for yourself is an example of a lack of integrity.