I believe if we had half our companies and half our countries run by women, and half our homes run by men, things would be better. We know our companies would be more productive. If you use the full talents of the population, you're more productive. We know our homes would be happier.

I don't believe we have a professional self from Mondays through Fridays and a real self for the rest of the time.

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.

Speak up. Believe in yourself. Take risks.

We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in.

Facebook is a really exciting place trying to do something really important that I really believe in. And it matters.