Talking can transform minds, which can transform behaviors, which can transform institutions.

we compromise our career goals to make room for partners and children who may not even exist yet

Fear is at the root of so many of the barriers that women face. Fear of not being liked. Fear of making the wrong choice. Fear of drawing negative attention. Fear of overreaching. Fear of being judged. Fear of failure. And the holy trinity of fear: the fear of being a bad mother/wife/daughter.

I spent most of my career, including my time at McKinsey, never acknowledging that I was a woman. And, you know, fast forward - I'm 43 now - fitting in is not helping us.

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.

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.

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.