If you believe that all men are created equal, then a child's death in some other country is no less tragic than in the United States.

Everyone needs a coach. It doesn't matter whether you're a basketball player, a tennis player, a gymnast or a bridge player.

In software you can't really add people and expect to get more done, because their ability to understand the program and what's going on it would require so much investment and all their work would require so much review that you'd be more likely to slow things down.

People often overestimate what will happen in the next two years and underestimate what will happen in ten.

Looking at these issues as a businessman, I believe that investing in the world's poorest people is the smartest way that our government spends money.

So we do software for watches, for phones, for TV sets, for cars. And some of these take a long time to catch on.

If you withdraw the incredible focus on polio, it will spread back, and in poor countries you'll get something like 100,000 cases a year. So by being very intense and getting the cases down to zero, what you do is you avoid all the future cases.