The true measure of a career is to be able to be content, even proud, that you succeeded through your own endeavors without leaving a trail of casualties in your wake.

What an ideology is is a conceptual framework with the way people deal with reality. Everyone has one. You have to, to exist you need an ideology. The question is whether it is accurate or not.

I believe that the general growth in large [financial] institutions have occurred in the context of an underlying structure of markets in which many of the larger risks are dramatically -- I should say, fully -- hedged.

It's a bubble. It has to have intrinsic value. You have to really stretch your imagination to infer what the intrinsic value of Bitcoin is. I haven't been able to do it. Maybe somebody else can.

The process of innovation is, of course, never ending.

Look, I'm very much in favor of tax cuts, but not with borrowed money. And the problem that we've gotten into in recent years is spending programs with borrowed money, tax cuts with borrowed money, and at the end of the day that proves disastrous. And my view is I don't think we can play subtle policy here.

It seems superfluous to constrain trading in some of the newer derivatives and other innovative financial contracts of the past decade. The worst have failed; investors no longer fund them and are not likely to in the future.