If you keep your nose to the grindstone, you don't have any nose.

My friends don't understand, whether it's belonging to a country club or playing golf, or whatever a vacation is, that should make you happy. And it's like, "No, happiness is much deeper." I think people have to struggle to find things that give them purpose, the real meaning. Why am I alive? Why did God bless me with these skills or these resources? What am I to do with them? If God just lets some person be very fortunate, let's say financially, it's kind of a funny God.

I was single for most of my life. The best thing that happened to me is my wife. I've got four kids. All of them go to Harvard. Much better than their dad. They're really bright kids.

What makes you tick? Why do you care about the things you care about?

When you coach and teach leadership, most people think about them. It's like you're the leader and how do you influence them. Clearly, leaders do take their followers, their flock, their enterprise, their business - whatever - hopefully to a better place. But I think the foundation of what makes really great leaders is they lead themselves, and they're conscious about knowing themselves and coaching and leading themselves in a very profound way. The simplest of us talk to ourselves. The question is, "Do we really lead ourselves?"

Humans are pack animals. In Biblical times, the great market cities in Europe or the United States, people want to be with other people. And in a way, the more that we're isolated, whether we're living on farms and we're only talking to our cell phone, the greater the need we have for group experience. So while people are saying that no one is going to go shopping because it's just inconvenient, and it's not as easy as buying online, why are people going to concerts? Why are people going to museums? Why are they going to sporting events?

Everybody has to solve that "meaning of life" and purpose question for themselves. Everybody does it their own way. I think you have to be thoughtful about the way that you're doing it. So I describe it as purpose. If you can think about leading a purposeful life - not just an accumulation but you actually make the world a better place - then I think in the grand scheme of the universe, that that explains our existence. If not, we're just passing through. We're grains of sand and we're blowing in the breeze.