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.

Of the maxims of orthodox finance none, surely, is more anti-social than the fetish of liquidity, the doctrine of that it is a positive virtue on the part of investment institutions to concentrate their resources upon the holding of 'liquid' securities. It forgets that there is no such thing as liquidity of investment for the community as a whole.

It's not bringing in the new ideas that's so hard; it's getting rid of the old ones.

Too large a proportion of recent "mathematical" economics are mere concoctions, as imprecise as the initial assumptions they rest on, which allow the author to lose sight of the complexities and interdependencies of the real world in a maze of pretentious and unhelpful symbols.

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 astonishing what foolish things one can temporarily believe if one thinks too long alone, particularly in economics.

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