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.

In a lot of ways Berlin is a symbol for me of Facebook's mission: bringing people together, connecting people and breaking down boundaries.

Facebook is really about communicating and telling stories... We think that people can really help spread awareness of organ donation and that they want to participate in this to their friends. And that can be a big part of helping solve the crisis that's out there.

In the future, I think you are going to want to capture a whole scene, a room, to be able to transport to that. To be able to stream what you are doing live and have people be able to interact in that space.

My number one piece of advice is: you should learn how to program.

Facebook is inherently viral.

I think that people just have this core desire to express who they are. And I think that's always existed.