Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
but if it is forced to enter the tortuous defiles of the law, or dark places whence the truth has to be dragged forth, it will not go prancing in front of the enemy's lines nor launch its shafts of quivering and passionate epigram of the fashion that is now so popular, but will wage war by means of sap and mine and ambush and all the tactics of secrecy.
None of these methods win applause during their actual execution: the reward comes after they have been carried to a successful termination, when even the most ambitious
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will reap a richer recompense than they could ever have secured by other means. For so soon as the thunders of applause awakened among their admirers by these affected declamatory displays have died away, the glory of true virtue rises again with renewed splendour, the judges do not conceal who it is has moved them, the well-trained orator wins their belief and oratory receives its only genuine tribute, the praise accorded it when its task is done.