Iliad 9.496–498
Phoenix to Achilles during the embassy
ἀλλʼ Ἀχιλεῦ δάμασον θυμὸν μέγαν· οὐδέ τί σε χρὴ
νηλεὲς ἦτορ ἔχειν· στρεπτοὶ δέ τε καὶ θεοὶ αὐτοί,
τῶν περ καὶ μείζων ἀρετὴ τιμή τε βίη τε.
But Achilles, master your great spirit. You should not
keep a pitiless heart. Even the gods themselves can be turned,
though their excellence, honor, and power are greater.