Epictetus · The Handbook
Chapter 36
The propositions “It is day” and “It is night” have great value in a disjunction, and no value in a conjunction. In the same way, grabbing the larger portion has value for the body, and no value for keeping up the shared spirit of a dinner as one should. So when you are eating with another person, remember to look not only at the value of the dishes for your body, but also at preserving your respect for your host.
ὡς τὸ «ἡμέρα ἐστί» καὶ «νύξ ἐστι» πρὸς μὲν τὸ διεζευγμένον μεγάλην ἔχει ἀξίαν, πρὸς δὲ τὸ συμπεπλεγμένον ἀπαξίαν, οὕτω καὶ τὸ τὴν μείζω μερίδα ἐκλέξασθαι πρὸς μὲν τὸ σῶμα ἐχέτω ἀξίαν, πρὸς δὲ τὸ τὸ κοινωνικὸν ἐν ἑστιάσει, οἷον δεῖ, φυλάξαι, ἀπαξίαν ἔχει. ὅταν οὖν συνεσθίῃς ἑτέρῳ, μέμνησο, μὴ μόνον τὴν πρὸς τὸ σῶμα ἀξίαν τῶν παρακειμένων ὁρᾶν, ἀλλὰ καὶ τὴν πρὸς τὸν ἑστιάτορα αἰδῶ φυλάξαι.