τὴν ἀκαιρίαν τὴν ἐκείνου καιρὸν ὑμέτερον νομίζειν

From LSJ

Εὐφήμει, ὦ ἄνθρωπε· ἁσμενέστατα μέντοι αὐτὸ ἀπέφυγον, ὥσπερ λυττῶντά τινα καὶ ἄγριον δεσπότην ἀποδράς → Hush, man, most gladly have I escaped this thing you talk of, as if I had run away from a raging and savage beast of a master

Source

English > Greek (Woodhouse Quotes Reversed)

consider his difficulties your opportunities