Above all, recognize that if you have had success, you have also had luck — and with luck comes obligation. You owe a debt, and not just to your Gods. You owe a debt to the unlucky.

The arrangement bore the same relation to actual finance as fantasy football bears to the NFL.

If you have a patient in a doctor's office who's just been told they have terminal cancer but there's this operation they could perform right now that might save their lives. ... They have a 90 percent chance of surviving the operation — if you tell them that, they respond one way. If you tell them ... that they have a 10 percent chance of being killed by the operation, they are about three times less likely to have the operation.

I always find with my stories that the way they start is that I just get so interested in a person that I'm compelled to go back to them over and over until I learn more and more about them, without even quite thinking it's material for a book.

We have the Google family calendar. Before a week starts, my wife and I sit down to decide who's driving who to school or when can we go out on a date.

Those who know don't tell and those who tell don't know.

People in both fields operate with beliefs and biases. To the extent you can eliminate both and replace them with data, you gain a clear advantage.