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

When I look at 225 million women who want contraceptives, and then I look at the 52 million unintended pregnancies that could be avoided by addressing this unmet need, where can we have the biggest impact with our voice, our dollars, our partners? It's on contraceptives. I would rather address the problem upstream.

Any social or cultural change has to be made openly and with people agreeing. You don't get there by just pushing an outsider's point of view.

What great changes have not been ambitious?

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.

The premise of this foundation is one life on this planet is no more valuable than the next.

If I really believe all lives have equal value, and if I use contraceptives, which I do, and if I'm counselling my son and my two daughters to use them, how am I not serving the women who don't have access to the contraceptives they need?