When Ford sells a car, a dealer isn't allowed to take out the engine and put a different one in. When a newsstand sells the Washington Post, no one can go to the newsstand and pay them to rip out the classified section and put their own classified section in - if they could, they would do so.

With world health, every life you save is a wonderful thing, so it's not this question of whether you solve it or you don't. The chance of completely solving the problems has long odds. But really, the thing is that you get to save the first child, the second child, the third child. You can just feel good about that.

It’s been proven that of all the interventions to reduce poverty, improving agricultural productivity is the best.

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.

You can make money and you can make excuses, but you can never make money out of excuses

If your business is not on the Internet, then your business will be out of business.

I can understand wanting to have millions of dollars; there's a certain freedom, meaningful freedom, that comes with that.