My wife spent a lot of time on what we do from a civic contribution giving perspective, for a number of years, I've really joined her in that. We're focused on issues in the United States, particularly issues with people who have been trapped in neighborhoods in what I might call intergenerational poverty.

Almost three years ago, when I retired, my wife and I were talking about our philanthropic work and how does one help give opportunity, particularly to kids growing up in very disadvantaged situations.And my initial kind of sense was, the government does that primarily, and what we should mostly do is pay our taxes. My wife said, no, I don't think that's quite right for us. We need to do more. We can do better.

What we've gone through in the last several years has caused some people to question 'Can we trust Microsoft?' .

A plane is a guilty pleasure. I have one. It's a great luxury. I appreciate it. I couldn't do what I do. It's not something you can write down as anything other than, "Wow, I can't believe I have this and I'm absolutely spoiled and entitled." On the other hand, I have one and I use it.

Computer science is the operating system for all innovation.

At Microsoft, we're investing heavily in security because we want customers to be able to trust their computing experiences, so they can realize the full benefits of the interconnected world we live in.

There is such an overvaluation of technology stocks that it is absurd. I would include our stock in that category. It is bad for the long-term worth of the economy.