ὀπτὸς ἐκ πυρός

From LSJ

Δόλιον γὰρ ἄνδρα φεῦγε παρ' ὅλον τὸν βίον → Dum vivis, insidiosos curriculo fuge → Den Hinterhältigen fliehe, dein ganzes Leben lang

Menander, Monostichoi, 131

Greek > English (Woodhouse)

tempered by fire of iron