"To live by working" is a principle which...involves a contradiction.

[Kire]

These letters, addressed to Frederic Bastiat, an economist, originally appeared in a debate published in The Voice of the People, in 1849.

Interest and Principal

The Origin of Ground Rent

by Pierre-Joseph Proudhon

I said before that in ancient times the landed proprietor, when neither he nor his family farmed his land, as was the case among the Romans in the early days of the Republic, cultivated it through his slaves: such was the general practice of patrician families. Then slavery and the soil were chained together; the farmer was called adscrpitus gleboe, joined to the land; property in men and things was undivided. The price of a farm depended (1) upon its area and quality of its soil, (2) upon the quantity of stock, and (3) upon the number of slaves.

When the emancipation of the slave was proclaimed, the proprietor lost the man and kept the land; just as today, in freeing the blacks, we leave the master his property in land and stock. Nevertheless, from the standpoint of ancient law as well as of natural and Christian right, man, born to labor, cannot dispense with the implements of labor; the principles of emancipation involved an agrarian law which guarantees them to him and protects him in their use: otherwise, this pretended emancipation was only an act of hateful cruelty, an infamous deception, and if, as Moses said, interest, or the yearly income from capital, reimburses capital, might it not be said that servitude reimburses property? The theologians and the law-givers of the time did not understand this, and by an irreconcilable contradiction, which still exists, they continued to rail at usury, but gave absolution to rent.

The result was that the emancipated slave, and, a few centuries later, the enfranchised serf, without means of existence, was obliged to become a tenant and pay tribute. The master grew still richer. I will furnish you, he says, with land; you shall furnish the labor; and we will divide the products. It was a reproduction on the farm of the ways and customs of business. I will lend you ten talents, said the moneyed man to the workingman; you shall use them; and then either we wiII divide the profits, or else, as long as you keep my money, you shall pay me a twentieth; or, if you prefer, at the expiration of the loan, you shall return double the amount originally received. From this sprang ground-rent, unknown to the Russians and the Arabs. The exploitation of man by man, thanks to this transformation, passed into the form of law: Usury, condemned in the form of lending at interest, tolerated in the contrat a la grosse, was extolled in the form of farm-rent. From that moment commercial and industrial progress served to make it only more and more customary. This was necessary in order to exhibit all the varieties of slavery and robbery, and to establish the true law of human liberty.

Once engaged in this practice of interesse, so strangely understood, so improperly applied, society began to revolve in the circle of its miseries. Then it was that inequality of conditions seemed a law of civilization, and evil a necessity of our nature.

More: http://dwardmac.pitzer.edu/Anarchist_Archives/proudhon/interestletter3.html