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.

In Wall Street now, you have to hide what you're doing. It's more fun when you don't have to do that. But I don't think its sense of purpose has changed at all.

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.

You can anchor the mind into answering a question a certain way by giving them a totally unrelated piece of information dropped before.

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.

Warren Buffett is fond of saying that any player unaware of the fool in the market probably is the fool in the market.

In Bakersfield, California, a Mexican strawberry picker with an income of $14,000 and no English was lent every penny he needed to buy a house for $724,000.