Whenever you have multiple devices including multiple PCs that you want to share information with, it's always been a bit complicated.

Of my mental cycles, I devote maybe 10 percent to business thinking. Business isn't that complicated. I wouldn't want to put it on my business card.

[Smart] is an elusive concept. There's a certain sharpness, an ability to absorb new facts. To ask an insightful question. To relate to domains that may not seem connected at first. A certain creativity that allows people to be effective.

Intermittency [in availability for wind and solar] changes the economics, particularly this requirement that the power company at all times be able to require power. That's large.

I have an excellent memory, a most excellent memory.

I’ve been waiting more than 30 years to say this: “Dad, I always told you I’d come back and get my degree.” I want to thank Harvard for this timely honor. I’ll be changing my job next year … and it will be nice to finally have a college degree on my resume.

Microsoft is a company that manages imagination.