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

Digital technology has several features that can make it much easier for teachers to pay special attention to all their students.

The human body is the most complex system ever created. The more we learn about it, the more appreciation we have about what a rich system it is.

Part of the magic of economic growth is how you educate people, and the leading economies have to stay in front of that. From an economic point of view, it affects competitiveness and creates jobs. Or from a social justice point of view, you can take someone in the bottom tier of income and let him compete to be a doctor or lawyer. The education system is the only reason the dream of equal opportunity has a chance of being delivered - and we're not running a good education system.

The Internet is becoming the town square for the global village of tomorrow.

We're very enthused about the idea that in the third trimester we actually give the mother a vaccine and her antibodies, the protective things that the immune system makes, actually pass through to the baby, both when the baby is born, and through the mother's milk. Because the baby's immune system is actually not very strong for that first few months, using the mother's immune system to do this - it's a very exciting idea and something that we're investing heavily in.

There's only one trick in software, and that is using a piece of software that's already been written.