Men feel like they can be a professional and a father. For women it's "or." That's offensive to me. The concept that it's not possible is crazy.

If you do please everyone, you are not making enough progress.

A lot of people will say, "what's Facebook's business model?" I always find that a kind of funny question. Our business model is out there, which is: we monetize largely through advertising and a little bit through the gift revenue, the virtual gifts we have on our site. I think those continue to be the most promising avenues going forward.

When my mother took her turn to sit in a gown at her graduation, she thought she only had two career options: nursing and teaching. She raised me and my sister to believe that we could do anything, and we believed her.

There are really good reasons to leave the workforce or work less or take a different job when you want to be with your children. I just want women - and men - to make that choice once they have the child. Not years in advance, because... they don't get the right opportunities. They give up before they even start.

Aiming for perfection causes frustration at best and paralysis at worst.

I don't pretend there aren't biological differences, but I don't believe the desire for leadership is hardwired biology, not the desire to win or excel. I believe that it's socialization, that we're socializing our daughters to nurture and our boys to lead.