μὴ κακὸν εὖ ἔρξῃς· σπείρειν ἴσον ἔστ' ἐνὶ πόντῳ → do no good to a bad man; it is like sowing in the sea
părĭĕtĭnæ, ārum, f. (paries), murs délabrés, débris, ruines : Cic. Tusc. 3, 53 ; Fam. 13, 1, 3 ; Plin. 25, 161 || [fig.] débris : Cic. Fam. 4, 3, 2.