There's a lot that needs to be fixed in dating for men and women in the U.S. - there's a lot of pressure on women to do things they may not want to do. And if you start out unequal, you are not going to end up with equality.

I was grateful that Facebook already had generous bereavement policies . Now Facebook employees receive 20 days paid leave to grieve the loss of an immediate family member and 10 days for an extended family member. I'm proud that we're able to do this and I hope more businesses do the same. Only 60 percent of private sector workers get paid time off after the death of a loved one, and then it's usually just a few days. Workers and families deserve better than that.

It's easy to dislike the few senior women out there. What if women were half the positions in power? It would be harder to dislike all of them.

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.

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.

The best decision I ever made was to marry Dave.

What works for men does not always work for women, because success and likability are positively correlated for men and negatively correlated for women. That's what the research shows. As a man gets more successful, everyone is rooting for him. As a woman gets more successful, both men and women like her less.