I was never the smartest guy in the room. From the first person I hired, I was never the smartest guy in the room. And that's a big deal. And if you're going to be a leader - if you're a leader and you're the smartest guy in the world - in the room, you've got real problems.

You hang around with good people, you play a lot of golf, and you have a pretty good life. That's what success is all about. It's getting people you like, who want to take the hill with you, who want to win, who have the passion. This is not rocket science.

People always overestimate how complex business is. This isn't rocket science. We've chosen one of the world's simplest professions.

There are only two sources of competitive advantage: the ability to learn more about our customers faster than the competition and the ability to turn that learning into action faster than the competition.

The biggest opportunity for big companies has come by far in the digitization of internal processes.

You never know how diverse your career can be. I think it's wonderful. My life has always been the next page, not the last page.

Take the middle 70 percent and tell them what they need to do to get into the top 20 percent.