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

Nothing influences people more than are commendation from a trusted friend.

At Facebook, we build tools to help people connect with the people they want and share what they want, and by doing this we are extending people's capacity to build and maintain relationships.

My friends are people who like building cool stuff. We always have this joke about people who want to just start companies without making something valuable. There's a lot of that in Silicon Valley.

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

I made so many mistakes in running the company so far, basically any mistake you can think of I probably made. I think, if anything, the Facebook story is a great example of how if you're building a product that people love you can make a lot of mistakes

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.