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.

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

Well I think any author or musician is anxious to have legitimate sales of their products, partly so they're rewarded for their success, partly so they can go on and do new things.

I have a particular relationship with Vinod Khosla because he's got a lot of very interesting science-based energy startups.

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.

You can go overboard in how quickly you might expect new technologies to transform people's lives. But I very much believe the way software is used, the way information gets distributed, will be dramatically different within 10 years. There is fire to go with all this smoke.

In low-income countries, getting to a health post is hard. It's very expensive.