Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
In the same period flourished Thrasymachus of Chalcedon, Prodicus of Ceos, Protagoras of Abdera, for whose instructions, which he afterwards published in a text-book, Euathlus is said to have paid 10,000 [*](About £312.) denarii, Hippias of Elis and Alcidamas of Elaea whom Plato [*](Phaedr. 261 D. ) calls Palamedes.
There was Antiphon also, who was the first to write speeches and who also wrote a text-book and is said to have spoken most eloquently in his own defence; Polycrates, who, as have already said, wrote a speech against Socrates, and Theodorus of Byzantium, who was one of those called
word-artificersby Plato. [*](Phaedr. 266 E. )
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