It is important for young entrepreneurs to be adequately self-aware to know what they do not know.

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.

The world isn't set up equally, and the first billion people using Facebook have way more money than the rest of the world combined.

If you actually do something you love it's a lot easier and takes on a lot more purpose.

I think a simple rule of business is, if you do the things that are easier first, then you can actually make a lot of progress.

You grow more when you get more people's perspective.

If the original Facebook was the first five minutes [of a conversation] and the stream was the next 15, what I want to show you today is the rest-the next few hours of a deep engaging conversation.