οὐδενὸς βελτίους: lit. more excellent than no one, to excel no one. Cf. 335 a, Aesch. Prom. 1016 αὐθαδία γὰρ οὐδενὸς μεῖζον σθένει for self-will is utterly powerless, Dem. II. 17 οὐδένων εἰσὶ βελτίους, XIX. 208 ἐμοῦ οὐδενὸς μεῖζον φθεγγομένου ἡττῶνται when I speak more weakly than any other, they are discomfited. More freq. are the cases in which the comparative word has a neg. force, as in the use of ἐλάσσων, ἥσσων, ἐνδεέστερος, with a preceding οὐδενός. Cf. 316 e οὐδενὸς ἥττων, he is inferior to no one, Eur. Bacch. 777 Διόνυσος ἥσσων οὐδενὸς θεῶν ἔφυ.
οὐκέτι μῦθον: the second part of the discourse had already been for the most part disconnected from the myth; but Protagoras now calls attention to this, in order to strengthen the impression that he is giving a fundamental demonstration from the nature of the subject itself.
