Microsoft has had many, many successful products. I'm committed to one company. This is the industry I've decided to work in.

Contrary to Piketty’s rentier hypothesis, I don’t see anyone on the [Forbes 400 list of the wealthiest Americans] whose ancestors bought a great parcel of land in 1780 and have been accumulating family wealth by collecting rents ever since. In America, that old money is long gone - through instability, inflation, taxes, philanthropy, and spending.

Now, if you're rich, you can spend a lot of money, Netherlands-style, and reduce that. But Bangladesh or parts of India, like Calcutta, they just simply won't be able to afford that kind of protection.

The AIDS is a disease that is hard to talk about.

The main thing that's missing in energy is an incentive to create things that are zero-CO2-emitting and that have the right scale and reliability characteristics.

The Internet will help achieve "friction free capitalism" by putting buyer and seller in direct contact and providing more information to both about each other.

Microsoft was founded with a vision of a computer on every desk, and in every home. We've never wavered from that vision.