Political economy proceeds from the fact of private property, but it does not explain it to us. It expresses in general, abstract formulae the material process through which private property actually passes, and these formulae it then takes for laws. It does not comprehend these laws-i.e., it does not demonstrate how they arise from the very nature of private property. Political economy does not disclose the source of the division between labour and capital, and between capital and land. When, for example, it defines the relationship of wages to profit, it takes the interest of the capitalists to be the ultimate cause; i.e., it takes for granted what it is supposed to evolve.
Similarly, competition comes in everywhere. It is explained from external circumstances. As to how far these external and apparently fortuitous circumstances are but the expression of a necessary course of development, political economy teaches us nothing. We have seen how, to it, exchange itself appears to be a fortuitous fact. The only wheels which political economy sets in motion are avarice and the war amongst the avaricious-competition [...]
Now, therefore, we have to grasp the essential connection between private property, avarice, and the separation of labour, capital and landed property; between exchange and competition, value and the devaluation of men, monopoly and competition, etc.; the connection between this whole estrangement and the money system.
Do not let us go back to a fictitious primordial condition as the political economist does, when he tries to explain. Such a primordial condition explains nothing. He merely pushes the question away into a grey nebulous distance. He assumes in the form of fact, of an event, what he is supposed to deduce-namely, the necessary relationship between two things-between, for example, division of labour and exchange. Theology in the same way explains the origin of evil by the fall of man: that is, it assumes as a fact, in historical form, what has to be explained.