«Parole est en mostrant ou pour monstrer quelle chose est con-ferente et utile et quelle chose est nuisible». Oresme e la parola dell'uomo civile
This essay aims to shed light upon one of the main relationships between two texts written by Oresme: the De Moneta and Le Livre de politiques. The significance of the word («parole») was examined in the latter: a faculty belonging only to the man who lives, communicates and trades in the civitas; the man that has to order things and actions in the sphere of expediens, i.e. what is useful, or in the sphere of the nocivum, what is detrimental. In Oresmian texts, this discursive faculty, that was
... e faculty, that was already examined by Albertus Magnus and Thomas of Aquin, becomes directly analytical, taxonomical and provides the ethical dimension to things and actions. In Le Livre, this triple faculty belongs to the «parole»: the elementary brick of the human discourse. The « homme civile » alone is able to seize the meaning and the value of the utilitas: what can be considered, or proven, useful, proper and profitable. He is able to distinguish, along a scale of equivalencies and balances, things and actions that can be defined just or unjust, but only as a result of the previous analytical path made by the «parole». After this analysis the political function of money, established in his oldest text, De moneta, appears strictly connected with the political function of the «parole» defined in Le livre.