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

One of the statistics that always amazes me is the approval of the Chinese government, not elected, is over 80 percent. The approval of the U.S. government, fully elected, is 19 percent. Well, we elected these people and they didn't elect those people. Isn't it supposed to be different? Aren't we supposed to like the people that we elected?

Software is more important than hardware.

I have this very positive view of the world getting better and better. The list of things that could be huge setbacks is not very long: A nuclear war, climate change and epidemics.

Robots will play an important role in providing physical assistance and even companionship for the elderly.

When I was in college, for the games of that era, I was as hard core as anyone was. I wouldn't say I outgrew it, but you always have to have a finite number of addictions.

Microsoft has some assets like Office that have stayed strong and there's so much room for innovation in those.