Institutio Oratoria

The first question which confronts us is

What is rhetoric?

Of those who divorce eloquence from that yet fairer and more desirable title to renown, a virtuous life, some call rhetoric merely a power, some a science, but not a virtue, some a practice, some an art, though they will not allow the art to have anything in common with science or virtue, while some again call it a perversion of art or κακοτεχνία.

These persons have as a rule held that the task of oratory lies in persuasion or speaking in a persuasive manner: for this is within the power of a bad man no less than a good. Hence we get the common definition of rhetoric as the power of persuading. What I call a power, many call a capacity, and some a faculty. In order therefore that there may be no misunderstanding I will say that by power I mean δύναμις.

This view is derived from Isocrates, if indeed the treatise on

worker of persuasion

marrow of persuasion.

Again Gorgias, [*](Gorg. 453 A. ) in the dialogue of Plato that takes its title from his name, says practically the same thing, but Plato intends it to be taken as the opinion of Gorgias, not as his own. Cicero [*](de Inv. I. v. 6, de Or. I. xxxi. 138 ) in more than one passage defined the duty of an orator as

speaking in a persuasive manner.

In his Rhelorica [*](cp. III. i. 20 and Cic. de Or. I. ii. 5. The work in question is better known as the de Inventione. ) too, a work which it is clear gave him no satisfaction, he makes the end to be persuasion. But many other things have the power of persuasion, such as money, influence, the authority and rank of the speaker, or even some sight unsupported by language, when for instance the place of words is supplied by the memory of some individual's great deeds, by his lamentable appearance or the beauty of his person.

Thus when Antonius in the course of his defence of Manius Aquilius tore open his client's robe and revealed the honourable scars which he had acquired while facing his country's foes, he relied no longer on the power of his eloquence, but appealed directly to the eyes of the Roman people. And it is believed that they were so profoundly moved by the sight as to acquit the accused.

Again there is a speech of Cato, to mention no other records, which informs us that Servius Galba escaped condemnation solely by

So also according to general opinion Phryne was saved not by the eloquence of Hyperides, admirable as it was, but by the sight of her exquisite body, which she further revealed by drawing aside her tunic. And if all these have power to persuade, the end of oratory, which we are discussing, cannot adequately be defined as persuasion.

Consequently those who, although holding the same general view of rhetoric, have regarded it as the power of persuasion by speaking, pride themselves on their greater exactness of language. This definition is given by Gorgias, in the dialogue [*](Gorg. p. 452 E. ) mentioned above, under compulsion from the inexorable logic of Socrates. Theodectes agrees with him, whether the treatise on rhetoric which has come down to us under his name is really by him or, as is generally believed, by Aristotle. In that work the end of rhetoric is defined as the leading of men by the power of speech to the conclusion desired by the orator.

But even this definition is not sufficiently comprehensive, since others besides orators persuade by speaking or lead others to the conclusion desired, as for example harlots, flatterers and seducers. On the other hand the orator is not always engaged on persuasion, so that sometimes persuasion is not his special object, while sometimes it is shared by others who are far removed from being orators.

And yet Apollodorus is not very far off this definition when he asserts that the first and all-important task of forensic oratory is to persuade the judge and lead his mind to the conclusions desired by the speaker. For

Some on the other hand pay no attention to results, as for example Aristotle, [*](Rhet. i. 2. ) who says

rhetoric is the power of discovering all means of persuading by speech.

Hermagoras, who asserts that its end is to speak persuasively, and others who express the same opinion, though in different words, and inform us that the end is to say everything which ought to be said with a view to persuasion, have been sufficiently answered above, when I proved that persuasion was not the privilege of the orator alone.

Various additions have been made to these definitions. For some hold that rhetoric is concerned with everything, while some restrict its activity to politics. The question as to which of these views is the nearer to the truth shall be discussed later in its appropriate place.

Aristotle seems to have implied that the sphere of the orator was all-inclusive when he defined rhetoric as the power to detect every element in any given subject which might conduce to persuasion; so too does Patrocles who omits the words in any given subject, but since he excludes nothing, shows that his view is identical. For he defines rhetoric as the power to discover whatever is persuasive in speech. These definitions like that quoted above include no more than the power of invention alone. Theodorus avoids this fault and holds that it is the power to discover and to utter forth in elegant language whatever is credible in every subject of oratory.

But, while others besides

. Plato makes Gorgias [*](Gorg. 454 B. ) say that he is a master of persuasion in the law-courts and other assemblies, and that his themes are justice and injustice, while in reply Socrates allows him the power of persuading, but not of teaching.

Those who refused to make the sphere of oratory allinclusive, have been obliged to make somewhat forced and long-winded distinctions: among these I may mention Ariston, the pupil of the Peripatetic Critolaus, who produced the following definition,

Rhetoric is the science of seeing and uttering what ought to be said on political questions in language that is likely to prove persuasive to the people.

Being a Peripatetic he regards it as a science, not, like the Stoics, as a virtue, while in adding the words

likely to prove persuasie to the people