Institutio Oratoria

The demonstrative type of oratory requires freer and more expansive rhythms, while forensic and deliberative oratory will vary the arrangement of their words in conformity with the variety of their themes. I must now turn to discuss the first of the two points which I mentioned above. [*](Sect. 121.) No one will deny that some portions of our speech require a gentle flow of language, while others demand speed, sublimity, pugnacity, ornateness or simplicity, as the case may be,

or that long syllables are best adapted to express dignity, sublimity and ornateness. That is to say, while the gentler form of utterance requires length of vowel sounds, sublime and ornate language demands sonority as well. On the other hand, passages of an opposite character, such as those in which we argue, distinguish, jest or use language approximating to colloquial speech, are better served by short syllables.

Consequently in the exordium we shall vary our structure to suit the thought. For I cannot agree with Celsus, when he would impose a single stereotyped form upon the exordium and asserts that the best example of the structure required for this purpose is to be found in Asinius: e. g., si, Caesar, ex omnibus mortalibus, qui sunt ac fuerunt, posset huic causae disceptator legi, non quisquam te potius optandus nobis fuit. [*]( If, Caesar, one man of all that are or have ever been could be chosen to try this case, there is none whom we could have preferred to you. )