Move fast, take risks, it's okay to try big things you're better off trying something and having it not work and learning from that than having not done anything at all.

Every application will be designed from the ground up to use real identity and friends.

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

If you're always under the pressure of real identity, I think that is somewhat of a burden.

There's a difference between being obsessed and being motivated.

If there is a bug in your code than you have to drop everything you're doing and go fix it.