We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.

People can criticize Microsoft for supporting this TV thing for the past eight years, but it is a long-term bet, There is not any other software business that is as dedicated to the vision of the TV and the PDA [personal digital assistant] as we are.

So we do software for watches, for phones, for TV sets, for cars. And some of these take a long time to catch on.

3D is a way of organizing things, particularly as we're getting much more media information on the computer, a lot more choices, a lot more navigation than we've ever had before.

The pace of progress in biology creates a foundation that naturally gets picked up by the biotech and pharmaceutical industry to solve rich-world diseases. This is attractive science. It's science that people want to work on.

We need to look at less obvious paths, things like the wind in the jet stream, which is very high up. The material science of what type of kite string you would need to connect up to that. That's still at the basic research level.

I don't think there is any philosophy that suggests having polio is a good thing.