Louis de Sacy send his Traité de l’Amitié (1703) to Fénelon in order to get a judgement. To his surprise, the result is a debate on his explanation of the ciceronian idea “a friend is another self”, transformed by Erasmus and Montaigne into a rhetorical commonplace. By neglecting this rhetorical side, the editors of Fenelon’s letter have misunderstood the literary and doctrinaire issue of the debate between the lawyer and the archbishop. Emulating Cicero, Louis de Sacy refers to conversations in (...) the salon of Marquise de Lambert whose opuscule on friendship is obviously influenced by Montaigne. Fénelon counters de Sacy by relating friendship to “amour-propre”, this topic ensuring the concern of pagans for his vision of “pur amour”. (shrink)