Coming from Google, you don't exactly spend a lot of time at Microsoft.

A woman, if you're Most Intelligent or Most Likely to Succeed, that's an embarrassing thing. Or something that's not considered attractive, and I think that's what we need to change.

As a man gets more successful, powerful, he is more liked, and as a woman gets more successful, she is less liked, and that's true by both women and men.

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

I would love to meet J.K. Rowling and tell her how much I admire her writing and am amazed by her imagination. I read every 'Harry Potter' book as it came out and looked forward to each new one. I am rereading them now with my kids and enjoying them every bit as much. She made me look at jelly beans in a whole new way.

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.

Speak up. Believe in yourself. Take risks.