ἡγούμενος τῶν ἡδονῶν ἀλλ' οὐκ ἀγόμενος ὑπ' αὐτῶν → of his pleasures he was the master and not their servant
ηεπιστημονική γνώση της γλώσσας και τών κανόνων που τή διέπουν.