Epictetus, Works, book 3, Περὶ τοῦ μὴ δεῖν προσπάσχειν τοῖσ οὐκ ἐφ’ ἡμῖν. 19:

τῷ ὄντι κακῶσ διοικεῖται τὰ ὅλα, εἰ μὴ ἐπιμελεῖται ὁ Ζεὺσ τῶν ἑαυτοῦ πολιτῶν, ἵν’ ὦσιν ὅμοιοι αὐτῷ, εὐδαίμονεσ. ἀλλὰ ταῦτα οὐ θεμιτὰ οὐδ’ ὅσια ἐνθυμηθῆναι, ἀλλ’ ὁ Ὀδυσσεύσ, εἰ μὲν ἔκλαεν καὶ ὠδύρετο, οὐκ ἦν ἀγαθόσ. τίσ γὰρ ἀγαθόσ ἐστιν ὁ οὐκ εἰδώσ, ὅσ ἐστιν;