There is no such thing as work-life balance. There is work, there is life, and there is no balance.

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.

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.

Trying to do it all and expecting that it all can be done exactly right is a recipe for disappointment. Perfection is the enemy.

The most important thing we're doing differently is that we talk openly about gender at Facebook.

In our performance reviews with women, we need to be saying, "Are you reaching enough? Are you applying for jobs when you meet some of the criteria like men, or are you waiting to meet all the criteria like women do?" There's so much we can do to encourage women to take on more and believe in themselves.

When my mother took her turn to sit in a gown at her graduation, she thought she only had two career options: nursing and teaching. She raised me and my sister to believe that we could do anything, and we believed her.