Modesty is the Mother of Justice

Justice is the virgin daughter of modesty; and dishonesty is opposed both by modesty and justice.

παρθένος γὰρ Αἰδοῦς Δίκη λέγεταί τε καὶ ὄντως εἴρηται,ψεῦδος δὲ αἰδοῖ καὶ δίκῃ νεμεσητὸν κατὰ φύσιν

Plato, Laws XII 943 E