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 (to proceed to our second supposition) the advocate does not know what the intentions of the witness may be, he must advance gradually inch by inch and sound him by examination and lead him step by step to the particular reply which it is desired to elicit.