I don't think most analysts understand that whether I work a 70-hour week or an 80-hour week, I take my head with me when I go home.

Growing up, I knew you were supposed to have a profession - and something better than being a shopkeeper, which is what my parents were.

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.

Everything has a lifecycle. You have to believe it’s going to change.

If your life lease, your existence was canceled tomorrow, what would you wish you had done? What are the things you would like to impact? Start on those and you can change the world. Maybe you can only make your neighborhood a little bit better, or make someone's life a little bit better. Isn't that the kind of purpose?

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.

I think finding the way in life is the hardest part. At every stage of life, every trial, every success, you know, you're going into some kind of fog. There isn't a plan that suddenly reveals itself, and you go, "Ta-da! Now I understand."