It is impossible, absolutely impossible, to overcome our enemies abroad, until we have subdued the enemies within our gates.
οὐ γὰρ ἔστιν, οὐκ ἔστι τῶν ἔξω τῆς πόλεως ἐχθρῶν κρατῆσαι, πρὶν ἂν τοὺς ἐν αὐτῇ τῇ πόλει κολάσητ᾿ ἐχθρούς.
Original text (Ancient Greek)