Book 3
1.12
Of these Protagoras and Gorgias are said to have been the first to treat commonplaces, Prodicus, Hippias, Protagoras and Thrasymachus the first to handle emotional themes. Cicero in the Brutus vii. 27. states that nothing in the ornate rhetorical style was ever committed to writing before Pericles, and that certain of his speeches are still extant. For my part I have been unable to discover anything in the least worthy of his great reputation for eloquence, cp. XII, ii. 22: x. 49, where Quintilian asserts that all the writings of Pericles have been lost. and am consequently the less surprised that there should be some who hold that he never committed anything to writing, and that the writings circulating under his name are the works of others.
1.13
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.