There is no subtler, no surer means of overturning the existing basis of society than to debauch the currency.

The biggest problem is not to let people accept new ideas, but to let them forget the old ones.

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.

What an extraordinary episode in the economic progress of man that age was which came to an end in August, 1914!

The power to become habituated to his surroundings and therefore to no longer be grateful for what is good in it is a marked characteristic of mankind and needs to be fought against if a person is to be happy.

[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 glory of the nation you love is a desirable end, — but generally to be obtained at your neighbor's expense.