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.

The world is progressing and resources are becoming more abundant. I'd rather go into a grocery store today than a king's banquet a hundred years ago.

Every day were saying, 'How can we keep this customer happy?' How can we get ahead in innovation by doing this, because if we don't, somebody else will.

The concept of this so-called "TerraPower reactor" is that you, in the same reactor, you both burn and breed. So, instead of making plutonium and then extracting it, we take uranium - the 99.3 percent that you normally don't do anything with - we convert that, and we burn it.

... 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!

Other paths would include making nuclear fission cheap enough and safe enough that people broadly embrace it, so that could be scaled up.

We're responsible for the creation of the PC industry. The whole idea of compatible machines and lots of software - that's something we brought to computing. And so it's a responsibility for us to make sure that things like security don't get in the way of that dream.