The part of uranium that's fissile - when you hit it with a neutron, it splits in two - is about 0.7%. The reactors we have today are burning that 0.7%.

Being maniacal about something is very helpful.

Nobody believes in completely unadulterated capitalism.

The software is where the magic is. If you're going to have all this power be simple enough, appealing enough and cool enough, it's going to be because the software is right.

... No one is less happy than I am with the performance of Microsoft stock! I've lost tens of billions of dollars this year - if you check, you'll see that's more than most people make in a lifetime!

The spread of online information isn't just good for charities. It's also good for donors. You can go to a site like Charity Navigator, which evaluates nonprofits on their financial health as well as the amount of information they share about their work.

Today, you always know whether you are on the Internet or on your PC's hard drive. Tomorrow, you will not care and may not even know.