If we have optimism without empathy then it doesn't matter how much we master the secrets of science. We're not really solving problems, we're just working on puzzles.

I've for some reason or other... never met Donald Trump.

You have the refugee crisis triggered by Syria. That's got a lot of costs associated with it. Domestically, budgets are incredibly tight because the economy's not generating the growth that makes for easy trade-offs.

Improving the health & productivity of the poorest is one of the best investments you can make in the future of the world

Know your numbers' is a fundamental precept of business.

Don't wallow in failure. Instead, learn from it.

Contrary to popular belief, I don't spend a whole lot of time following soccer. But as I have traveled around the world to better understand global development and health, I've learned that soccer is truly universal. No matter where I go, that's what kids are playing. That's what people are talking about.