If you count E-mail, I'm on the Internet all day, every day.

I have $100 billion... You realize I could spend $3 million a day, every day, for the next 100 years? And that's if I don't make another dime.

I think of myself as a global citizen.

I regret being the richest man in the world because that position attracts undeserved publicity.

I love building the products, seeing people use the products but you know along with success comes the need for a dialogue with the government.

The phenomenal generosity of the United States in its aid budget towards health issues is the best in the world. You can look at that broadly, you can look at it in terms of HIV, the PEPFAR money which came together in a Republican administration with bipartisan support.

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.