Steve Jobs' ability to focus in on a few things that count, get people who get user interface right, and market things as revolutionary are amazing things.

Now, we put out a lot of carbon dioxide every year, over 26 billion tons. For each American, it's about 20 tons. For people in poor countries, it's less than one ton. It's an average of about five tons for everyone on the planet. And, somehow, we have to make changes that will bring that down to zero.

Money has no utility to me beyond a certain point.

I'll get to see many disease eradications. and we're seeing a lot of progress.

The general idea of the rich helping the poor, I think, is important.

In most of these things our foundation is a co-funder, so I can say that a polio or an HIV vaccine, that I'm putting our resources behind it in a very big way and the U.S. government would be the best partner for those efforts.

The willingness to hear hard truth is vital not only for CEOs of big corporations but also for anyone who loves the truth. Sometimes the truth sounds like bad news, but it is just what we need.