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.

In all the talk in the Principles (as opposed to the formal analysis) it is not the saving of rentiers but the energy of entrepreneurs which governs accumulation.

It is impossible to add the stock of money to the flow of saving.

Economic theorists should not make such a production about taking a rabbit out of a hat after having put the rabbit into the hat in full view of the audience.

At any moment there is certainly not balanced trade between the various areas of the habitable globe that happens to be under seperate national governments - there is an ever-changing pattern of deficits and surpluses.

An economy may be in equilibrium from a short-period point of view and yet contain within itself incompatibilities that are soon going to knock it out of equilibrium.

It is the rate of investment which governs the rate of saving, and not vice versa.