Endless data show that diverse teams make better decisions. We are building products that people with very diverse backgrounds use, and I think we all want our company makeup to reflect the makeup of the people who use our products. That's not true of any industry really, and we have a long way to go.

Women systematically underestimate their own abilities.

Over the last 10 years, women have stalled out at the top.

When you're more valuable, the people around you will do more to make it work.

All of us want the same things. We want to be good to the people around us and for our lives to have meaning. For me that means making the world a little bit easier for women.

Guilt management can be just as important as time management for mothers.

I'd worked on leprosy and malaria in India [at the World Bank] and asked myself the question: Why do we let 2 million children die every year around the world for not having clean water? Because they're faceless and nameless. So, for me, Facebook looked like it was going to solve the problem of the invisible victim.