My grade point average went from a 2.2 to a 4.0 over the summer. I wanted to get straight A's. I decided to get straight A's. I didn't want people to think I was dumb. And when you get straight A's once, its easier.

The world has been very careful to pick very few diseases for eradication, because it is very tough.

The CEO's role in raising a company's corporate IQ is to establish an atmosphere that promotes knowledge sharing and collaboration.

When you have a product that has zero sales, it is easy for people to say whatever they want about it and almost fantasize about it.

Governments will always play a huge part in solving big problems. They set public policy and are uniquely able to provide the resources to make sure solutions reach everyone who needs them. They also fund basic research, which is a crucial component of the innovation that improves life for everyone.

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

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