Διὸς Κόρινθος

A proverb applying to those who keep saying the same things, it was coined for the following reason: the Megarians, subject to the Corinthians,¹ were oppressed with their orders and clearly vexed on this point. Corinthian envoys went to Megara, grew irritated when the people would not listen to them, and began to shout 'Zeus' son Korinthos will not put up with this.' So they say that the Megarians threw the envoys out and beat them, saying 'take that, Zeus' son Korinthos'!