The power of taxation by currency depreciation is one which has been inherent in the State since Rome discovered it. The creation of legal-tender has… - John Maynard Keynes

I also want to emphasise strongly the point about economics being a moral science. I mentioned before that it deals with introspection and with values. I might have added that it deals with motives, expectations, psychological uncertainties. One has to be constantly on guard against treating the material as constant and homogeneous in the same way that the material of the other sciences, in spite of its complexity, is constant and homogeneous. It is as though the fall of the apple to the ground depended on the apple's motives, on whether it is worth while falling to the ground, and whether the ground wanted the apple to fall, and on mistaken calculations on the part of the apple as to how far it was from the centre of the earth.

The nature of unemployment today is totally different from what it was a year ago. It is no longer caused by a deficiency of demand. There is no longer a potential surplus supply of the things we want. The transition to full employment is hindered by two obstacles. The first is due to the difficulty of shifting labour to the points where it is wanted. The second— and, for the time being, the chief—-obstacle is caused by the difficulties, other than the shortage of labour, in the way of existing demand becoming effective.

Inflation is unjust and Deflation is inexpedient. Of the two perhaps Deflation is, if we rule out exaggerated inflations such as that of Germany, the worse; because it is worse, in an impoverished world, to provoke unemployment than to disappoint the rentier. But it is not necessary that we should weigh one evil against the other. It is easier to agree that both are evils to be shunned.