Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
III. Our orator will also require a knowledge of civil law and of the custom and religion of the state in whose life he is to bear his part. For how will he be able to advise either in public or in private, if he is ignorant of all the main elements that go to make the state? How can he truthfully call himself an advocate if he has to go to others to acquire that knowledge which is all-important in the courts? He will be little better than if he were a reciter of the poets.
For he will be a mere transmitter of the instructions that others have given him, it will be on the authority of others that he propounds what he asks the judge to believe, and he whose duty it is to succour the litigant will himself be in need of succour. It is true that at times this may be effected with but little inconvenience, if what he advances for the edification of the judge has been taught him and composed in the seclusion of his study and learnt by heart there like other elements of the case. But what will he do, when he is confronted by unexpected problems such as frequently arise in the actual course of pleading? Will he not disgrace himself by looking round and asking the junior counsel who sit on the benches behind him for advice?
Can lie hope to get a thorough grasp of such information at the very moment when he is required to produce it in his speech? Can he make his assertions with confidence or speak with native simplicity as though his arguments were his own? Grant that he may do so in his actual speech. But what will he do in a debate, when he has continually to meet fresh points raised by his opponent and is given no time to learn
I am not ignorant of the generally prevailing custom, nor have I forgotten those who sit by our store-chests and provide weapons for the pleader: I know too that the Greeks did likewise: hence the name of pragmaticus which was bestowed on such persons. But I am speaking of an orator, who owes it as a duty to his case to serve it not merely by the loudness of his voice, but by all other means that may be of assistance to it.