Women around the world should have a tool that helps them plan their pregnancies.

Mothers might say they'd go to the doctor. In poor countries, moms are usually responsible for their kids' health. But breastfeeding and traveling to the clinic take time, and research shows that health care is one of the first tradeoffs women make when they're too busy.

I'm happy we have three healthy children and we'll stay with three healthy children.

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.

Bill and I both firmly believe that even the most difficult global health problems can be solved.

The biggest pieces of work that we do are vaccines, because those save lives, and also family planning. Because if a woman can space the births of her children, it changes everything for her health and her child's health.

When we invest in women and girls, we are investing in the people who invest in everyone else.