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.

The stock market has always had its own meter. Sometimes it's ahead of itself, sometimes it's behind itself. A broken watch is right twice a day.

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.

And then you take a look at Spaces, there is this great innovation that came out of nowhere. We have the number one blogging site in the world because of the innovation that's there.

It's hard to invent a new thing, and it's just as hard to invent another new thing.

There's a lot of Google fascination out there and we share it, and we're going to compete, we're going to compete very, very hard.

Any idea that turns out to be truly great can be harvested for tens of years. On the other hand, if you want to continue to be great, you've got to bet on new things, big, bold bets.