ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
dēscriptor: ōris, m. describo,
I a describer, delineator: morum, Lact. 5, 9, 19: descriptores gentium, ethnographers, Amm. 23, 6, 1.