When girls are educated and free to pursue their passions, they contribute more to a thriving society. When women have a voice, they raise it to demand a life that is greater than what they've been told they have a right to expect. And these demands change the future for everyone.

As a parent, the responsible thing to do - if you love your child - is to vaccinate your child.

Government funding that's coming from the United States is making a huge difference on the ground in the developing world. It's really palpable - it's making a huge difference saving lives.

If we're going to make progress on this issue [of contraception], we have to be really clear about what our agenda is. We're not talking about abortion. We're not talking about population control. What I'm talking about is giving women the power to save their lives, to save their children's lives and to give their families the best possible future.

When were you born, who are your parents, where did you grow up? None of us earns these things. These things were given to us. So when we strip away all of our luck and our privilege, and we consider where we'd be without them, it becomes much easier to see someone who's poor and say, "That could be me." And that's empathy.

Women and girls face a whole host of issues. We start with health, so we work very deeply on maternal deaths, making sure that a mom doesn't die in childbirth, making sure that she has access, for instance, to AIDS medication.

When we invest in women, we invest in a powerful source of global development