If we disregard the exchange of present goods for future goods, and restrict our considerations for the time being to those cases in which the only exchanges are those between present goods and present money, we shall at once observe a fundamental difference between the effects of an isolated variation in a single commodity-price, emanating solely from the commodity side, and the effects of a variation in the exchange-ratio between money and other economic goods in general, emanating from the monetary side.
Ludwig von Mises, The Theory of Money and Credit
capitalism, economics, freedom, money