There's 20 companies that I have investments in - some batteries, some solar-thermal, one big nuclear thing. We need hundreds and hundreds of companies like that, so that in a 20-year time frame we really are starting to change the energy infrastructure.

Married life is a simpler life. Who I spend my time with is established in advance.

I read an hour almost every night. It's part of falling asleep.

People in business understand paying money to be more efficient. You can bootstrap markets where the devices are too expensive at first because these are so valuable to some people.

From the day Microsoft was started, the only constraint to our growth has been attracting ah, more great programmers, very smart, committed, ah, people. And so we're always on... on the look for ah, that kind of person.

The phenomenal generosity of the United States in its aid budget towards health issues is the best in the world. You can look at that broadly, you can look at it in terms of HIV, the PEPFAR money which came together in a Republican administration with bipartisan support.

Anything you do, you better enjoy it for its value. Because people are going to second-guess everything you do.