Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
It may be noted that discussions of such a kind may well occur in actual cases.
For my part while I realise that deliberative themes do not require an exordium, for reasons which I have already stated, I do not, however, understand why they should open in such a wild and exclamatory manner. When a man is asked to express his opinion on any subject, he does not, if he is sane, begin to shriek, but endeavours as far as possible to win the assent of the man who is considering the question by a courteous and natural opening.
Why, I ask, in review of the fact that deliberations require moderation above all else, should the speaker on such themes indulge in a torrential style of eloquence kept at one high level of violence? I acknowledge that in controversial speeches the tone is often lowered in the exordium, the statement of facts and the argument, and that if you subtract these three portions, the remainder is more or less of the deliberative type of speech, but what remains must likewise be of a more even flow, avoiding all violence and fury.