The days of you having a different image for your work friends or co-workers and for the other people you know are probably coming to an end pretty quickly. Having two identities for yourself is an example of a lack of integrity.

People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

I started the site when I was 19. I didn't know much about business back then.

I think that more flow of information, the ability to stay connected to more people makes people more effective as people. And I mean, that's true socially. It makes you have more fun, right. It feels better to be more connected to all these people. You have a richer life.

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

A lot of the time the experts, the people who are supposed to be able to tell you what to do, will tell you that you can't do something even when you know you can. And a lot of the time it's your friends ... who tell you you can do it.

Facebook is inherently viral.