Unfortunately, the more complex the system, the greater the room for error.

Although I have made a fortune in the financial markets, I now fear that the untrammeled intensification of laissez-faire capitalism and the spread of market values into all areas of life is endangering our open and democratic society. The main enemy of the open society, I believe, is no longer the communist but the capitalist threat.

I put forward a pretty general theory that financial markets are intrinsically unstable. That we really have a false picture when we think about markets tending towards equilibrium.

I very often used to get backaches due to the fact that I was wrong. Whenever you are wrong you have to fight or [take] flight. When [I] make the decision, the backache goes away.

I'm only rich because I know when I'm wrong...I basically have survived by recognizing my mistakes.

There is no point in being confident and having a small position.

Mankind's ability to understand and control the forces of nature greatly exceeds our ability to govern ourselves