Philanthropy should be voluntary.

Playing Bridge is a pretty old fashioned thing in a way that I really like. I was watching my daughter ride horses this weekend and that is also a bit old fashioned but fun. I do the dishes every night - other people volunteer but I like the way I do it.

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.

Whether it's Google or Apple or free software, we've got some fantastic competitors and it keeps us on our toes.

The most amazing philanthropists are people who are actually making a significant sacrifice.

At the end of the day, natural-gas peakers sit back there and get financed so that the Midwest corridor can have a huge [period] of four to five days of no wind. The peakers are running big time to make that up, because that is the swing piece that can always be turned on.

You have to be willing to see that sometimes the governments of these poor countries don't come through. You have to think about that as a constraint. How do you help them be better? How do you come up with things that actually work, even in those tough situations.