Polio's pretty special because once you get an eradication, you no longer have to spend money on it; it's just there as a gift for the rest of time.

Eradications are special. Zero is a magic number. You either do what it takes to get to zero and you're glad you did it; or you get close, give up and it goes back to where it was before, in which case you wasted all that credibility, activity, money that could have been applied to other things.

I'm going to save my public voice largely for the issues where I have some depth.

I have an excellent memory, a most excellent memory.

If you can't make it good, at least make it look good.

if I'd had some set idea of a finish line, don't you think I would have crossed it years ago?

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

I meet people overseas that know five languages - that the only language I'm comfortable in is English.

We've got to put a lot of money into changing behavior.

Rich countries can afford to overpay for things.

Because of your smile, you make life more beautiful.

Follow your inner moonlight; don’t hide the madness.

If you feel lost, disappointed, hesitant, or weak, return to yourself, to who you are, here and now and when you get there, you will discover yourself, like a lotus flower in full bloom, even in a muddy pond, beautiful and strong.

I think the positive competition between states in India is one of the most positive dynamics that the country has.

People are always coming up to me and saying, 'I heard your dad's speech, and it's really great.' And they'll mention some place I didn't even know my dad was going to

I think when smallpox was eliminated, the whole world got pretty excited about that because it's just such a dramatic success.

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

Well I think any author or musician is anxious to have legitimate sales of their products, partly so they're rewarded for their success, partly so they can go on and do new things.

In inner-city, low-income communities of color, there's such a high correlation in terms of educational quality and success.

Do what you feel in your heart to be right – for you’ll be criticized anyway.

Antitrust is the way that the government promotes markets when there are market failures. It has nothing to do with the idea of free information

Corruption is one of the most common reasons I hear in views that criticize aid.

The intersection of law, politics, and technology is going to force a lot of good thinking.

There's no such thing as going to a soapbox and saying, 'The government's corrupt,' and not having the intelligence service see your face. In the digital world, that can be done.