Abstract: Proudhon functionalizes the difference of the sexes to establish that "the human being is a couple". He makes it the real actor of the social revolution that he wishes to see accomplished. By resorting to Hannah Arendt, the article shows that Proudhon addresses issues that economic theory has then obscured by building itself as a science, in the way of Marx or that of Walras, by partitioning and prioritizing a reality that he grasped in its many aspects.