Moral Letters to Lucilius Section 37

Praeterea commodum et ad animalia pertinet et ad inperfectos homines et ad stultos. Itaque potest ei esse incommodum mixtum, sed commodum dicitur a maiore sui parte aestimatum; bonum ad unum sapientem pertinet; inviolatum esse oportet.

D’ailleurs les avantages sont aussi pour les animaux, pour les hommes imparfaits, pour les sots. C’est pourquoi les inconvénients peuvent s’y mêler ; mais on appelle avantage ce qu’on juge tel sous la plupart des rapports. Le bien appartient au sage seul, et ne doit point comporter d’alliage.

Prends courage :

Besides, advantages may be predicated of animals, of men who are less than perfect, and of fools. Hence the advantageous may have an element of disadvantage mingled with it, but the word “advantageous” is used of the compound because it is judged by its predominant element. The good, however, can be predicated of the wise man alone; it is bound to be without alloy,