Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
As an adherent of the older view I must ask for indulgence and must enquire what was the reason that led earlier writers to restrict a subject
For it was customary to write panegyrics and denunciations and to deliver funeral orations, while the greater part of their activities was devoted to the law-courts and deliberative assemblies; as a result, they say, the old writers of text-books only included those kinds of oratory which were most in vogue.
The defenders of antiquity point out that there are three kinds of audience: one which comes simply for the sake of getting pleasure, a second which meets to receive advice, a third to give judgement on causes. In the course of a thorough enquiry into the question it has occurred to me that the tasks of oratory must either be concerned with the law-courts or with themes lying outside the law-courts.