The new power of Rhetoric.
In a general view of Antiphon's career there is one aspect which ought not to be missed—that aspect in which it bears striking evidence to the growing importance in Athenian public life of the newly-developed art of Rhetoric. Antiphon's first and strongest claim to eminence was his mastery over the weapons now indispensable in the ekklesia and the law-courts; it was this accomplishment, no less fashionable than useful, which recommended him to the young men of his party whom he had no other pretension to influence; it was this rhetorical δεινότης
to which he owed his efficiency in the Revolution. In his person the practical branch of the new culture for the first time takes a distinct place among the qualifications for political rank. The Art of Words had its definite share in bringing in the Four Hundred: it was a curious nemesis when seven years later it was banished from Athens by the Thirty.