It is illegal to discriminate on the basis of pregnancy or gender. It is not illegal to talk about it.

And in situations where a man and a woman each receive negative feedback, the woman's self-confidence and self-esteem drop to a much greater degree. The internalization of failure and the insecurity it breeds hurt future performance, so this pattern has serious long-term consequences.

Next time you're about to call your daughter bossy, take a deep breath and say, 'My daughter has executive leadership skills.'

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.

I gave a talk on gender stuff at Facebook one morning and a man didn't come. It was optional; he didn't have to come. But he sent a note saying, "I missed your meeting because I drove my kids to school so my wife could do something else. Thank you for making that possible." I think that employee is a loyal employee for Facebook and I think more companies should want that kind of loyalty.

We [Facebook] really believe in enabling people to be their authentic selves on the web, and enabling people to communicate directly with each other in a very personal way.

The social web can't exist until you are your real self online. I have to be me. You have to be you. Once we are online as ourselves, connected to each other and our other friends, then you can have the evolution of what becomes the social web.