It's more pressure on women to - if they marry or partner with someone, to partner with the right person. Because you cannot have a full career and a full life at home with your children if you are also doing all of the housework and child care.

We need to talk more openly about mentorships and sponsorships. Women don't get the mentoring, and particularly the sponsors, they need to succeed as much as men.

Being confident and believing in your own self-worth is necessary to achieving your potential.

Facebook is great for women and men. We are enormously flexible. We care a lot about great opportunities for women, we push ourselves to make things as flexible as possible.

We have to ask ourselves if we have become so focused on supporting personal choices that we're failing to encourage women to aspire to leadership.

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

I don't pretend there aren't biological differences, but I don't believe the desire for leadership is hardwired biology, not the desire to win or excel. I believe that it's socialization, that we're socializing our daughters to nurture and our boys to lead.