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. πάντως, παντελῶς, διὰ τέλους, Ar. and P. πάνυ, τελέως, P. ὅλως, παντάπασι, V. εἰς τὸ πᾶν; see altogether.
