It is far better to keep the enemy close, by bribing him with stock options, than to have him out in the wild, foraging.

People really don't like to hear success explained away as luck — especially successful people. As they age, and succeed, people feel their success was somehow inevitable. They don't want to acknowledge the role played by accident in their lives. There is a reason for this: the world does not want to acknowledge it either. If you use better data, you can find better values; there are always market inefficiencies to exploit, and so on. But it has a broader and less practical message: don't be deceived by life's outcomes. Life's outcomes, while not entirely random, have a huge amount of luck baked into them. Above all, recognize that if you have had success, you have also had luck — and with luck comes obligation.

My judgement is not good when I am on a book tour. I am not thinking about it that much. What happens is I will go back home. I have a 4-year-old and a 1-year-old and a wife who is now taking care of them who is wondering where her husband is.

What's fun is watching actors of that calibre bring them to life. It's incredible. Christian Bale spent a day with the character he plays and after my year of being with him I couldn't have generated the same view of him. They have a different way of looking at people, it's fascinating to watch.

I didn't think one day something would happen that would bring me back to Wall Street to write what is essentially a sequel.

Baseball is this intense subculture that actually doesn't speak very much for the larger culture.

It's such a pain in the ass to write a book, I can't imagine writing one if I'm not interested in the subject.