Φύσιν πονηρὰν μεταβαλεῖν οὐ ῥᾴδιον → Haud facile commutatur ingenium malum → Verdorbene Natur zu ändern ist nicht leicht
adj.
P. and V. καίριος, ἐπίκαιρος, Ar. and V. αἴσιος, V. εὔκαιρος. Fitting: P. and V. σύμμετρος, πρέπων, προσήκων; see fitting.
opportūnē: adv., v. opportunus.