αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
shameless: P. and V. ἀναιδής, ἀναίσχυντος, θρασύς.