If you ask men why they did a good job, they'll say, 'I'm awesome. Obviously. Why are you even asking?' If you ask women why they did a good job, what they'll say is someone helped them, they got lucky, they worked really hard.

I'm not telling women to be like men. I'm telling us to evaluate what men and women do in the workforce and at home without the gender bias.

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.

I go around the room and ask people, 'What do you think?'

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.

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

There is no perfect fit when you're looking for the next big thing to do. You have to take opportunities and make an opportunity fit for you, rather than the other way around. The ability to learn is the most important quality a leader can have.