ξένος ὢν ἀκολούθει τοῖς ἐπιχωρίοις νόμοις → as a foreigner, follow the laws of that country | when in Rome, do as the Romans do
κατασβῶσαι: (ἐκ τοῦ κατασβοῆσαι) = κατασβέσαι, Ἡρώνδ., V. 39· πρβλ. ζόασον = σβέσον.