Institutio Oratoria

These rhetoricias had many successors, but the most famous of (Gorgias' pupils was Isocrates, although our authorities are not agreed as to who was his teacher: I however accept the statement of Aristotle on the subject.

From this point the roads begin to part. The pupils of Isocrates were eminent in every branch of study, and when he was already advanced in years (and he lived to the age of ninety-eight), Aristotle began to teach the art of rhetoric in his afternoon lectures, [*]( Aristotle gave his esoteric lectures in the morning, reserving the afternoon for those of more general interest: see Aul. Gell. xx. v. ) in which he frequently quoted the wel-known line from the Philoctetes [*]( Probably the Philoctetes of Euripides. The original line was αἰσχρὸν σιωπᾶν, βαρβάρους δ᾽ ἐᾶν λέγειν, which Aristotle travestied by substituting Ἰσοκράτην for βαρβάρους. ) in the form

1. Isocrates still speaks. 'Twere shame should I Sit silent.

also lived about the same period: while Theophrastus, the pupil of Aristotle, produced some careful work on rhetoric. After him we may note that the philosophers, more especially the leaders of the Stoic and Peripatetic schools, surpassed even the rhetoricians in the zeal which they devoted to the subject.