Law has become a business. Health care has become a business. Unfortunately, politics has also become a business. That really undermines society.

I used to be opposed to the idea of social entrepreneurship. I said, you know, let business be business, and philanthropy be philanthropy. Keep the two separate, don't mix it up, and this is what I did, and I did that rather successfully, but I now recognize that actually you do need to mix it up and I think there is room for social entrepreneurship.

Whenever there is a conflict between universal principles and self-interest, self-interest is likely to prevail.

I'm not better than the next trader, just quicker at admitting my mistakes and moving on to the next opportunity.

This is the joint responsibility of everyone who was involved in the introduction of the euro without understanding the consequences. When the euro was introduced, the regulators allowed banks to buy unlimited amounts of government bonds without setting aside any equity capital. And the European Central Bank discounted all government bonds on equal terms. So commercial banks found it advantageous to accumulate the bonds of the weaker countries to earn a few extra basis points.

The pro-Israel lobby has been remarkably successful in suppressing criticism. Politicians challenge it at their peril because of the lobby's ability to influence political contributions.

Fundamental analysis seeks to establish how underlying values are reflected in stock prices, whereas the theory of reflexivity shows how stock prices can influence underlying values