When I first went to Africa, I thought that I was personally going to save the continent, if not the world.

Human beings tend not to spend money on health preventionally. We tend to spend it on top treatment.

The poor also are willing to make, and do make, smart decisions, if you give them that opportunity.

We can send people to the Moon; we can see if there's life on Mars - why can't we get $5 [mosquito] nets to 500 million people?

Monsters will always exist. There's one inside each of us. But an angel lives there, too. There is no more important agenda than figuring out how to slay one and nurture the other.

Africa can stun you in an instant. It can throw floods and drought and disease at you, sometimes all at the same time. In the next moment, it will tease you with its magnificent beauty, so even if you don't forget, you can find a way to forgive. Ultimately, it keeps you coming back for more.

I think we so often equate leadership with being experts - the leader is supposed to come in and fix things. But in this interconnected world we live in now, it's almost impossible for just one person to do that.