(EN) Pierre-Joseph Proudhon, IV (PDF), in What is property?, collana WORKS OF P J. PROUDHON., traduzione di Benjamin R. Tucker, I, PRINCETON, MASS., BENJ. R. TUCKER, 1876 [1840], p. 112; 181.
«This is my proposition : The laborer retains, even after he has received his wages, a natural right of property in the thing which he has produced. [...] The price is not sufficient: the labor of the workers has created a value ; now this value is their property. But they have neither sold nor exchanged i t ; and you, capitalist, you have not earned it. That you should have a partial right to the whole, in return for the materials that you have furnished and the provisions that you have supplied, is perfectly just. You contributed to the production, you ought to share in the
enjoyment.»
