A sure sign of a crisis is the prevalence of cranks. It is characteristic of a crisis in theory that cranks get a hearing from the public which orthodoxy is failing to satisfy.

The only thing worse than being exploited by capitalism is not being exploited by capitalism.

Utility is a metaphysical concept of impregnable circularity; utility is the quality in commodities that makes individuals want to buy them, and the fact that individuals want to buy commodities shows that they have utility.

The very nature of economics is rooted in nationalism. ... It [was] developed ... in the hope of throwing light upon questions of policy. But policy means nothing unless there is an authority to carry it out, and authorities are national.

Income from property is not the reward of waiting, it is the reward of employing a good stockbroker.

science progresses by trial and error, and when it is forbidden to admit error there can be no progress.

Not only subjective poverty is never overcome by growth, but absolute poverty is increased by it. ... Absolute misery grows while wealth increases.