Should there be cameras everywhere in outdoor streets? My personal view is having cameras in inner cities is a very good thing. In the case of London, petty crime has gone down. They catch terrorists because of it. And if something really bad happens, most of the time you can figure out who did it.

Your customers get better when you do.

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.

[We in Microsoft] are not the only software company but we are a great software company doing some unique work.

I think philanthropy is also growing and catching on. Figuring out how the philanthropy sector, which is quite small compared to the private sector, which is the biggest by far, and then the governments, you know, even in these poor countries over time has to take on these key responsibilities. How does philanthropy accelerate that? Drive the kind of innovations, make sure they get used well. So it plays this kind of special role.

Apple has always leveraged technologies that the PC industry has driven to critical mass - the bus structures, the graphics cards, the peripherals, the connection networks, things like that - so they're kind of in the PC ecosystem and kind of not.

Talking to mothers, always brings it home because they're so anxious to do everything they can for their kids and so tragic for them.