When you revolutionize education, you're taking the very mechanism of how people be smarter and do new things, and you're priming the pump for so many incredible things.

Me and my dad are the biggest promoters of an estate tax in the US. It's not a popular position.

I spend a lot of time reading.

Windows is probably the most important product in the entire PC industry. Everything we do in terms of supporting touch, new hardware, accessibility has incredible impact.

Why do people benefit in inverse proportion to their need? Well, market incentives make that happen.

If you get health, then you have opportunity for literacy. Health first, then literacy. Once you have literacy, then you have a chance to bring in the new tools of communication. Let people reach out and have access to the latest advances.

The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers.