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.

The first essential for economists ... is to ... combat, not foster, the ideology which pretends that values which can be measured in terms of money are the only ones that ought to count.

The point of studying economics is so as not to be fooled by economists.

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

Reality is never a golden age.

Unemployment is a reproach to a democratic government.

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.