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 wish I could just go tell all the young women I work with, all these fabulous women, 'Believe in yourself and negotiate for yourself. Own your own success.' I wish I could tell that to my daughter. But it's not that simple.

The best decision I ever made was to marry Dave.

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

I walk out of this office every day at 5:30 so I'm home for dinner with my kids at 6, and interestingly, I've been doing that since I had kids. I did that when I was at Google, I did that here, and I would say it's not until the last year, two years, that I'm brave enough to talk about it publicly. Now I certainly wouldn't lie, but I wasn't running around giving speeches on it." "...there's no such thing as work-life balance. There's work, and there's life, and there's no balance.

Don't let your fears overwhelm your desire. Let the barriers you face-and there will be barriers-be external, not internal. Fortune does favor the bold, and I promise that you will never know what you're capable of unless you try.

And what I saw happening is that women don't make one decision to leave the workforce. They makes lots of little decisions really far in advance that kind of inevitably lead them there.