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.

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.

Don't let your fears overwhelm your desire. Let the barriers you face-and there will be barriers-be external, not internal. Fortune does favor the bold, and I promise that you will never know what you're capable of unless you try.

I feel really grateful to the people who encouraged me and helped me develop. Nobody can succeed on their own.

It turns out that a husband who does the laundry, it's very romantic when you're older. And it's hard to believe when you're younger. But it's absolutely true.

Nobody can succeed on their own.

The best decision I ever made was to marry Dave.