Institutio Oratoria

IV. In speaking of quality we sometimes use the word in its most general sense, which covers a number of different questions. For we enquire sometimes into the nature and form of things: as for instance whether the soul is immortal or whether god is to be conceived of in human form. Sometimes, on the other hand, the question turns on size and number, as, for instance, what is the size of the sun or whether there are more worlds than one. In all these cases we arrive at our conclusions by conjecture, yet each involves a question of quality.

Such questions are sometimes treated in deliberative themes: for example, if Caesar is deliberating whether to attack Britain, he must enquire into the nature of the Ocean, consider whether Britain is an island (a fact not then ascertained), and estimate its size and the number of troops which lie will require for the invasion. Under the same head of quality fall questions whether certain things should be done or not and certain objects sought or avoided: such topics are specially adapted for deliberative themes, but occur with some frequency in controversial themes as well, the only difference being that in the latter we deal with what is past and in the former with the future.

Similarly all the topics of demonstrative [*]( See III. iv. 12 sqq. ) oratory involve a qualitative basis.

By far the strongest line that can be taken in defence is to assert that the act which forms the subject of the charge is actually honourable. A man is disinherited because he went on military service, stood for office or married without his father's consent. We defend this act. This form of defence is called κατ᾽ ἀντίληψιν by the followers of Hermagoras, that is, defence by objection, the term being used with reference to the purport of the defendant's plea. [*](ἀντίληψις is the technical term for this form of defence which turns not on the facts, but on the justice of the case. The meaning of ad intellectum id nomen referentes is obscure. If the words are correct (and no satisfactory correction seems possible), their meaning must be that the defence turns not on the act, but on its significance and equity. If any change is made in the text, the simplest course is to delete the words as a gloss which has crept into the text. ) I can find no exact Latin translation of the term; we call it an absolute defence. But in such cases the question is concerned with the justice or injustice of the act alone.

Justice is either natural or conventional. Natural justice is found in actions of inherent worth.

Under this head come the virtues of piety, loyalty, self-control and the like. To these some add the rendering of like for like. But this view must not be adopted without consideration: for to retaliate, or meet violence with violence on the one hand, does not imply injustice on the part of the aggressor, while on the other hand it does not follow that the first act was just merely because the two acts were alike. In cases where there is justice on both sides, the