A research to point out the different notion of family that Rousseau delineates in the second Discours and in the Essai sur l’origine des langues. In the first case family is something acquired, it’s the result of a revolution, of a gap, and it presupposes technical development and psychological complexity; in the second case family is something natural, it’s primitive, extremely rough, and it implies a vision of the state of nature, and of the man, that we can not identify (...) with the vision delineated by Rousseau in his mains works. (shrink)