Epictetus, Works, book 4, Πρὸσ τοὺσ εὐκόλωσ ἐκφέροντασ τὰ αὑτῶν. 10:

‐ Μὴ γάρ σε παρεκάλουν, ἄνθρωπε; μὴ γὰρ ἐπὶ συνθήκαισ τισὶν ἐξήνεγκασ τὰ σαυτοῦ, ἵν’ ἀκούσῃσ ἐν τῷ μέρει καὶ τὰ ἐμά;