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.

You wish that you could move more rapidly and you have setbacks. You know, the AIDS epidemic was a huge setback for Africa, and it's only through generosity that we've avoided that just completely crippling an entire generation there.

There certainly is a case to be made that taxes should be more progressive.

If I think something's a waste of time or inappropriate I don't wait to point it out. I say it right away. It's real time. So you might hear me say 'That's the dumbest idea I have ever heard' many times during a meeting.

The information society should serve all of its citizens, not only the technically sophisticated and economically privileged.

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.

I was announcing to the public, in 2006, that I'd be leaving Microsoft in a couple of years and focusing full-time on the foundation. That was the time at which we went back to New York and Warren [Buffett] announced these gifts to a number of foundations, with a very high percentage of it going to us and basically doubling our capacity.