The biggest killers of children around the world are two things: diarrhea and pneumonia. When you think about it, in the United States, kids don't die of diarrhea anymore, but it's a huge problem in the developing world.

In the United States, there's definitely some controversy about birth control in general, and I think we needed to split the debate and have people realize that we actually agree as a country about contraceptives. Over 93 percent of American women say they use contraceptives, and they feel very good about it.

I'm wholehearted about whatever I do.

What great changes have not been ambitious?

Our desire to bring every good thing to our children is a force for good throughout the world. It’s what propels societies forward.

We started our foundation because we believe we have a real opportunity to help advance equity around the world, to help make sure that, no matter where a person is born, he or she has the chance to live a healthy, productive life.

Kids are falling through the cracks and nobody notices it. That to me is what's wrong with the school system.