αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
adj.
Dull: P. and V. ἀμαθής, ἀσύνετος, ἀφυής, νωθής, Ar. and P. δυσμαθής, P. ἀναίσθητος, βλακικός; see foolish.