μὴ κακὸν εὖ ἔρξῃς· σπείρειν ἴσον ἔστ' ἐνὶ πόντῳ → do no good to a bad man; it is like sowing in the sea
P. and V. κακόν, τό, δυσπραξία, ἡ, ἀγών, ὁ, Ar. and V. πόνοι, οἱ; see trouble.
