Just because you've been successful and just because you've disrupted an environment, doesn't mean you're a role model or that you actually have anything to teach anybody. There's an awful lot of luck and accident in the world, and maybe you were just on the receiving end of that.

The thing I'm most afraid of is what happens when these people who voted for Donald Trump realize he's not going to do anything for them and that he's not an antidote to what ails them. His whole movement runs on anger, and if it doesn't have anger, it doesn't go anywhere.

There are several insights at the heart of the A’s system that I think are wonderful for baseball. One, that it’s a team game. That no one player is going to make that much of a difference to your team, so for god’s sake don’t go blow a quarter of your budget on one guy.

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.

In their leaders, advisers, and experts, people much prefer overconfidence, total certainty, to any kind of doubt.

I'd say part of the appeal of Trump is that he's presenting himself as a totally certain, infallible person.

You could argue the banks are much better capitalised than they were going into the crisis, and everyone's in a much more vigilant state because they still remember the crisis.