Institutio Oratoria

while Theodectes [*](Rhetorician of first half of fourth century B.C..) is actually said to have been able to repeat any number of verses after only a single hearing. I remember that it used to be alleged that there were persons still living who could do the same, though I never had the good fortune to be present at such a performance. Still, we shall do well to have faith in such miracles, if only that he who believes may also hope to achieve the like.

III. Delivery is often styled action. But the first name is derived from the voice, the second from the gesture. For Cicero in one passage [*](de Or. III. lix. 222. ) speaks of action as being a form of speech, and in another [*](Or. xvii. 55. ) as being a kind of physical eloquence. None the less, he divides action into two elements, which are the same as the elements of delivery, namely, voice and movement. Therefore, it matters not which term we employ.

But the thing itself has an extraordinarily powerful effect in oratory. For the nature of the speech that we have composed within our minds is not so important as the manner in which we produce it, since the emotion of each member of our audience will depend on the impression made upon his hearing. Consequently, no proof, at least if it be one devised by the orator himself, will ever be so secure as not to lose its force