If every rich person gave 50 percent of their wealth to charity, I would not say they should pay more taxes.

The generally accepted view is that markets are always right -- that is, market prices tend to discount future developments accurately even when it is unclear what those developments are. I start with the opposite view. I believe the market prices are always wrong in the sense that they present a biased view of the future.

Everything adds up to a major crisis. Humanity is faced with a global energy crisis ... The core of the crisis lies in the increasing shortage of oil.

The integration of Europe was very much led by a Germany that was always willing to pay a little bit extra to reach a compromise that everybody accepted, because Germany was so eager to get European support for reunification. That was called the "farsighted vision," which created the European Union.

The criminalization of marijuana did not prevent marijuana from becoming the most widely used illegal substance in the United States and many other countries. But it did result in extensive costs and negative consequences.

If the choice is between cooking alive and wasting money unnecessarily I would rather waste some money, because long before we cook we are going to kill each other if we don't deal with climate change.

I don't panic. The same thing applies to me as to everybody else, so I'm given to euphoria and despair. And I would say that I basically have survived by recognizing my mistakes.