Bill Gates

In terms of mathematics textbooks, why can't you have the scale of a national market? Right now, we have a Texas textbook that's different from a California textbook that's different from a Massachusetts textbook. That's very expensive.

In 80% of the world, energy will be bought where it is economic. You have to help the rest of the world get energy at a reasonable price.

Well private money can take risks in a way that government money often isn't willing to.

Money has always been in politics. And I'm not sure you'd want money to be completely out of politics.

Nobody spends any money on smallpox unless they worry about a bio-terrorist recreating it.

My mom was on the United Way group that decides how to allocate the money and looks at all the different charities and makes the very hard decisions about where that pool of funds is going to go.

If people want capital gains taxed more like the highest rate on income, that's a good discussion. Maybe that's the way to help close the deficit.

If I hadn't given my money away, I'd have had more than anyone else on the planet.

Well-spent aid money is saving lives for a few thousand dollars per life saved.

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

Money has no utility to me beyond a certain point.

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