Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Further it is not so important for us to consider the actual feet as the
Therefore rhythmical structure will hold the same place in prose that is held by versification in poetry. The best judge as to rhythm is the ear, which appreciates fullness of rhythm or feels the lack of it, is offended by harshness, soothed by smooth and excited by impetuous movement, and approves stability, while it detects limping measures and rejects those that are excessive and extravagant. It is for this reason that those who have received a thorough training understand the theory of artistic structure, while even the untrained derive pleasure from it.
There are some points, it is true, which are beyond the power of art to inculcate. For example if the case, tense or mood with which we have begun, produces a harsh rhythm, it must be changed. But is it possible to lay down any definite rule as to what the change of case, tense or mood should be? It is often possible to help out the rhythm when it is in difficulties by introducing variety through the agency of a figure. But what is this figure to be? A figure of speech or a figure of thought? Can we give any general ruling on the subject? In such cases opportunism is our only salvation, and we must be guided by consideration of the special circumstances.