ὅπλον μέγιστόν ἐστιν ἡ ἀρετή βροτοῖς → man's greatest weapon is virtue, virtue is the greatest weapon for mortals
cēlātum: i, n. id.,I a secret, Plaut. Trin. 1, 2, 127; 2, 1, 15 (19).
celatum celati N N :: secret