Enchiridion · §25

παρῆκέν τινα ἐπὶ δεῖπνον· τοῦτο παρῆκε. μὴ τοίνυν παρῆκεν. παρακληθεὶς ἐπὶ δεῖπνον ὅρα τὴν ἀξίαν τοῦ ἑστιῶντος καὶ τί ἀπέβη. ἐπεὶ δ᾽ ἂν ἐν τοῖς τοιούτοις εὑρεθῇς, εὖ ποίει τοῖς παροῦσι. εἰ δέ τι κακεῖ εὑρήσεις, ἐκεῖσε εὖ ποίει ἢ ἐλθεῖν ἀπάγγελλε ὡς εὑρήκας τοῦ μὴ λοιδορεῖν.

parēken tina epi deipnon; touto parēke. mē toinun parēken. paraklētheis epi deipnon hora tēn axian tou hestiōntos kai ti apebē. epei d' an en tois toioutois heurethēs, eu poiei tois parousi.

Has someone been preferred before you at a banquet, in greeting, or in being called in for consultation? If these things are good, you should be pleased that he got them. If they are not good, do not be troubled that you did not. And remember: since you did not try to get what is not in your power, you cannot be considered to have an equal share of what belongs to those who did try.

— Enchiridion 25

Source: Greek (Schenkl/Oldfather critical edition tradition) + Long 1877 English translation