Almost every way we make electricity today, except for the emerging renewables and nuclear, puts out CO2. And so, what we're going to have to do at a global scale, is create a new system. And so, we need energy miracles.

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

A lot of people assume that creating software is purely a solitary activity where you sit in an office with the door closed all day and write lots of code.

You may have heard of Black Friday and Cyber Monday. There's another day you might want to know about: Giving Tuesday. The idea is pretty straightforward. On the Tuesday after Thanksgiving, shoppers take a break from their gift-buying and donate what they can to charity.

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.

Windows 95 was a nice milestone.

Customers want high quality at low prices and they want it now.