Once we allow ourselves to be disobedient to the test of an accountant's profit, we have begun to change our civilization.

As time goes on, I get more and more convinced that the right method of 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.

Most, probably, of our decisions to do something positive, the full consequences of which will be drawn out over many days to come, can only be taken as the result of animal spirits-a spontaneous urge to action rather than inaction, and not as the outcome of a weighted average of quantitative benefits multiplied by quantitative probabilities.

When the facts change, I change my mind.

I feel no shame at being found still owning a share when the bottom of the market comes…I would go much further than that. I should say that it is from time to time the duty of a serious investor to accept the depreciation of his holdings with equanimity and without reproaching himself. … An investor…should be aiming primarily at long-period results, and should be solely judged by these.

They offer me neither food nor drink - intellectual nor spiritual consolation... [Conservatism] leads nowhere; it satisfies no ideal; it conforms to no intellectual standard, it is not safe, or calculated to preserve from the spoilers that degree of civilization which we have already attained.

Lenin is said to have declared that the best way to destroy the Capitalistic System was to debauch the currency. . . Lenin was certainly right. There is no subtler, no surer means of overturning the existing basis of society than to debauch the currency. The process engages all the hidden forces of economic law on the side of destruction, and does it in a manner which not one man in a million can diagnose.