Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Such action was taken by Hortensius, the Luculli, Sulpicius, Cicero, Caesar and many others, among them both the Catos, of whom one was actually called the Wise, [*](i.e. Cato the Elder. ) while if the other is not regarded as wise, I do not know of any that can claim the title after him. On the other hand, this same orator of ours will not defend all and sundry: that haven of safety which his eloquence provides will never be opened to pirates as it is to others, and he will be led to undertake cases mainly by consideration of their nature.
However, since one man cannot undertake the cases of all litigants who are not, as many undoubtedly are, dishonest, he will be influenced to some extent by the character of the persons who recommend clients to his protection and also by the character of the litigants themselves, and will allow himself to be moved by
But he must put away from him two kinds of pretentious display, the one consisting in the officious proffering of his services to the powerful against those of meaner position, and the other, which is even more obtrusive, in deliberately supporting inferiors against those of high degree. For a case is not rendered either just or the reverse by the social position of the parties engaged. Nor, again, will a sense of shame deter him from throwing over a case which he has undertaken in the belief that it had justice on its side, but which his study of the facts has shown to be unjust, although before doing so he should give his client his true opinion on the case.