As time goes on, I get more and more convinced that the right method in investment is to put fairly large sums into enterprises which one thinks one knows something about and in the management of which one thoroughly believes. It is a mistake to think that one limits one's risk by spreading too much between enterprises about which one knows little and has no reason for special confidence. . . . One's knowledge and experience are definitely limited and there are seldom more than two or three enterprises at any given time in which I personally feel myself entitled to put full confidence.

[Silvio] Gesell's chiefwork is written in cool and scientific terms, although it is run through by a more passionate and charged devotion to social justice than many think fit for a scholar. I believe that the future will learn more from the spirit of Gesell then from that of Marx.

The markets are moved by animal spirits, and not by reason.

There is nothing so disastrous as a rational investment policy in an irrational world.

It has been pointed out already that no knowledge of probabilities, less in degree than certainty, helps us to know what conclusions are true, and that there is no direct relation between the truth of a proposition and its probability. Probability begins and ends with probability.

It is a good thing to make mistakes so long as you're found out quickly.

Perhaps it is historically true that no order of society ever perishes save by its own hand.