Any machine that can run a browser is not thin. The browser has to be the thickest application man has ever invented, and it's getting thicker faster than anything ever development by man.

There was a concept a long time ago that you would do a different type of reactor called a "fast reactor," that would make a bunch of another element called plutonium, and then you would pull that out, and then you would burn that. That's called "breeding" in a fast reactor. That is bad because plutonium is nuclear weapons material. It's messy. The processing you have to get through is not only environmentally difficultly, it's extremely expensive.

If you were born poor, it's not your fault. But if you die poor it is.

Even when things are stable, that's not easy [to work in Africa] because there are not roads, and the weather is tough, the education system hasn't been there. But this is how you get great countries, is step by step.

You know, I'm a big believer in touch and digital reading, but I still think that some mixture of voice, the pen and a real keyboard - in other words a netbook - will be the mainstream on that.

My success, part of it certainly, is that I have focused in on a few things.

Philanthropy should be voluntary.