In the philanthropy game, you're going for different outcomes: saving childhood lives, having kids grow up - because they don't have malnutrition or disease - that they achieve their full potential. We take for Warren [Buffett] things that, because he's very intelligent about the world but doesn't get to go out in Africa and see what we see, we've taken and say to him where we stand and it's basically a very positive report that his gift has made a phenomenal difference.

Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position.

Learning from mistakes and constantly improving products is a key in all successful companies.

My grade point average went from a 2.2 to a 4.0 over the summer. I wanted to get straight A's. I decided to get straight A's. I didn't want people to think I was dumb. And when you get straight A's once, its easier.

I think the thing we see is that as people are using video games more, they tend to watch passive TV a bit less. And so using the PC for the Internet, playing video games, is starting to cut into the rather unbelievable amount of time people spend watching TV.

The quality of research in the U.S. is absolutely the best.

R&D generally has been a bipartisan thing, because in the IT space, in the medical space, the U.S., the benefits to ourselves and the world and our economy have been very, very clear. I'm hopeful we can make a very strong case there. Energy is actually harder; it takes more time to get a product, but if you do it's a very, very big market and the constraints of doing that in a clean way are more obvious all the time.