αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
adj.
Capricious: P. and V. ἔμπληκτος. Monstrous: Ar. and P. τερατώδης.