ἄξιος λόγου εἶναι

From LSJ

οὐκ ἔστιν οὐδείς, οὐδ' ὁ Μυσῶν ἔσχατος → there is nobody, not even the last of the Mysians | there is nobody, not even the meanest of mankind

Source

Greek > English (Woodhouse)

be worth one's salt