The scope for improvement is infinite, precisely because perfection is unattainable.

There is very little difference between speculation and investment. The only difference is basically that investments are successful speculations because if you successfully anticipate the future you make a speculative profit.

The hardest thing to judge is what level of risk is safe.

The main difference between me and other people who have amassed this kind of money is that I am primarily interested in ideas, and I don't have much personal use for money.

Well, you know, I was a human being before I became a businessman.

The main obstacle to a stable and just world order is the United States. [This idea] happens to coincide with the prevailing opinion in the world. And I think that's rather shocking for Americans to hear.

Revolutions usually start with enthusiasm and end in tears.