Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
the folly
and attribute personal faults to circumstances, as for instance if a speaker should attack the decemvirate instead of Appius. They will also contradict what is obvious, speak ambiguously, lose sight of the main issue of the case, or give replies which have no relation to the charges made. This latter procedure may, it is true, be occasionally employed when we have a bad case which requires to be supported by arguments drawn from matters foreign to the case. The trial of Verres provides an example; when accused of peculation it was alleged that he had shown courage and energy in his defence of Sicily against the pirates.
The same rules apply to objections which we may have to meet. But there is one point which requires special attention, since in such cases many speakers fall into two very different faults. For some even in the courts will pass by such objections when raised by their opponents as troublesome and vexatious details, and, contenting themselves with the arguments which they have brought ready-made