Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Cicero also corrects passages in the speeches of Gracchus where the structure appears to him to be harsh. For Cicero this is becoming enough, but we may content ourselves with testing our own power of welding together in artistic form the disconnected words and phrases which present themselves to us. For why should we seek elsewhere for examples of faults which we may all of us find in our own work? One point, however, it is enough simply to notice—that the more beautiful in thought and language the sentence which you deprive of such structural cohesion, the more hideous will
Accordingly, although I admit that artistic structure, at any rate in perfection, was the last accomplishment to be attained by oratory, I still hold that even primitive orators regarded it as one of the objects of their study, as far at least as the rudeness of their attainments permitted. For even Cicero for all his greatness will never persuade me that Lysias, Herodotus and Thucydides were careless in this respect.