Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
includes judgment under mention; but in my opinion judgment is so inextricably mingled with the first three departments of rhetoric (for without judgment neither expression nor arrangement are possible), that I think that even delivery owes much to it. I say this with all the greater confidence because Cicero in
Others, who seem to me to have been no less desirous than those mentioned above to introduce some novelty, have added order, although they had already mentioned arrangement, as though arrangement was anything else than the marshalling of arguments in the best possible order. Dion taught that oratory consisted only of invention and arrangement, but added that each of these departments was twofold in nature, being concerned with words and things, so that expression comes under invention, and delivery under arrangement, while memory must be added as a fifth department. The followers of Theodorus divide invention into two parts, the one concerned with matter and the other with expression, and then add the three remaining departments.
Hermagoras places judgment, division, order and everything relating to expression under the heading of economy, a Greek word meaning the management of domestic affairs which is applied metaphorically to oratory and has no Latin equivalent.
A further question arises at this point, since some make memory follow invention in the list of departments, while others make it follow arrangement. Personally I prefer to place it fourth. For we ought not merely to retain in our minds the fruits of our
There are also not a few who have held that these are not parts of rhetoric, but rather duties to be observed by the orator. For it is his business to invent, arrange, express, etcetera. If, however, we accept this view, we leave nothing to art.
For although the orator's task is to speak well, rhetoric is the science of speaking well. Or if we adopt another view, the task of the artist is to persuade, while the power of persuasion resides in the art. Consequently, while it is the duty of the orator to invent and arrange, intention and arrangement may be regarded as belonging to rhetoric.