Go to a playground: Little girls get called 'bossy' all the time, a word that's almost never used for boys. And that leads directly to the problems women face in the workforce. When a man does a good job, everyone says, 'That's great.' When a woman does that same thing, she'll get feedback that says things like, 'Your results are good, but your peers just don't like you as much' or 'maybe you were a little aggressive.'

People think that women don't negotiate because they're not good negotiators, but that's not it. Women don't negotiate because it doesn't work as well for them. Women have to say, 'I really add a lot of value, and it's in your interest to pay me more.' I hate that advice, but I want to see women get ahead.

Women need to shift form thinking "I'm not ready to do that" to thinking "I want to do that- and I'll learn by doing it.

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.

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

For any of us in this room today, let's start out by admitting we're lucky. We don't live in the world our mothers lived in, our grandmothers lived in, where career choices for women were so limited.

But I really believe that when you give people authentic identity, which is what Facebook does, and you can be your real self and connect with real people online, things will change.