The industrial leader of the 20th century was a system-builder. He was a visionary in terms of what could be built; got the capital together; certainly convinced investors that it was possible; and then ran a high-volume production system that would spew out a vast array of almost identical goods and services. They would be changed from time to time; there was research and development, to be sure. But the system was built around production, not innovation.

In the early 1970s, Milton Friedman argued that corporations should not be socially responsible because they had no mandate to be; they existed to make money, not to be charitable institutions. But in the economy of the 21st century, corporations cannot be socially responsible, if social responsibility is understood to mean sacrificing profits for the sake of some perceived social good. That's because competition has become so much more intense.

Cynicism is the largest obstacle to social change. Cynicism is dangerous because people throw up their hands and say, "Well it's not possible. Why should I even try?"

As a top manager, you have to not just reward truth-telling, you've got to beg for it, and you've got to demand that everyone around you gives you constructive criticism, constantly. You've got to get out of the bubble, so that you can get direct feedback from everybody who's being affected.

You can't create a political movement out of pabulum.

I, from the luxury of my laptop computer, can summon extraordinary bargains on everything I want, and I can also move my savings anywhere. This ability to choose more broadly and to switch more easily is the central fact of modern economic life.

Averages don't always reveal the most telling realities. You know, Shaquille O'Neal and I have an average height of 6 feet.