Sorghum is kind of unusual. It can go to very high heats, but it's not as productive in most environments as maize is.

Software innovation, like almost every other kind of innovation, requires the ability to collaborate and share ideas with other people, and to sit down and talk with customers and get their feedback and understand their needs.

Take agriculture, where we haven't done much, or sanitation; saying, "okay, we will be able to make a really huge effort there." It really energized the foundation and half of what we've gotten done in this last decade is because Warren [Buffett] trusted us.

There won't be anything we won't say to people to try and convince them that our way is the way to go.

It's pretty incredible to look back 30 years to when Microsoft was starting and realize how work has been transformed. We're finally getting close to what I call the digital workstyle.

My success, part of it certainly, is that I have focused in on a few things.

Technology is unlocking the innate compassion we have for our fellow human beings.