Land degradation, rising sea levels, famine, and conflict will continue to drive people from their homes and towards cities, with megacities like Mexico City and Lagos becoming increasingly common in some of the poorest parts of the world.

When it comes to providing aid, developing innovations, and making bold steps that change the course of history, the United States is usually on the front lines.

Finding innovative ways to deliver vaccines to children in developing countries is at the heart of our work. The very fact that we don't have people on the ground but rather work in an alliance with other organizations is itself an innovation that was the basis of GAVI's establishment in 2000.

No country in the post-colonial era has thrived without first building its capacity to conduct scientific research.

I don't think that the total creation took place in six days as we now measure time. If we can confirm, say, the Big Bang theory, that doesn't at all cause me to question my faith that God created the Big Bang.

There's always a ying-yang in life. With everybody. There's evil in all of us. It's just about how you balance out the evil and the good and having faith in yourself and how you carry yourself.

It is baffling, I must say, that in our modern world we have such blind trust in science and technology that we all accept what science tells us about everything - until, that is, it comes to climate science.

Knowing that you're the one who's been rejected, God it makes you feel isolated. I defy anybody not to be a bit upset. I felt as though I'd walked into the house trailing all this baggage.