Moral Letters to Lucilius Section 10

Adice nunc, quod omnibus inter se virtutibus amicitia est. Itaque prodest, qui virtutes alicuius paris sui amat amandasque invicem praestat. Similia delectant; utique ubi honesta sunt et probare ac probari sciunt.

Et ajoute qu’entre elles toutes les vertus sont amies. L’homme est donc utile à son pareil, dont il aime les vertus, et à qui il fournit l’occasion d’aimer en retour les siennes. Ce qui nous ressemble nous charme, surtout les cœurs honnêtes, qui savent nous goûter et se faire goûter de nous.

Moreover, there is a sort of mutual friendship among all the virtues. Thus, he who loves the virtues of certain among his peers, and in turn exhibits his own to be loved, is helpful. Like things give pleasure, especially when they are honourable and when men know that there is mutual approval.