of Aristophanes
From LSJ
ἐν πιθήκοις ὄντα δεῖ εἶναι πίθηκον → in Rome we do as the Romans do | when in Rome, do as the Romans do | when in Rome, do as the Romans | when in Rome, do like the Romans do | when in Rome | being among monkeys one has to be a monkey
Translations
Aristophanean
Czech: aristofanovský, aristofanský; French: aristophanien, aristophanique; Hungarian: arisztophanészi; Italian: aristofaneo, aristofanio; Portuguese: aristofânico, aristofanesco