Institutio Oratoria

Fire alone can kindle, and moisture alone can wet, nor can one thing impart any colour to another save that which it possesses itself. Accordingly, the first essential is that those feelings should prevail with us that we wish to prevail with the judge, and that we should be moved ourselves before we attempt to move others.

But how are we to generate these emotions in ourselves, since emotion is not in our own power? I will try to explain as best I may. There are certain experiences which the Greeks call φαντασίαι, and the Romans visions, whereby things absent are presented to our imagination with such extreme

It is the man who is really sensitive to such impressions who will have the greatest power over the emotions. Some writers describe the possessor of this power of vivid imagination, whereby things, words and actions are presented in the most realistic manner, by the Greek word εὐφαντασίωτος and it is a power which all may readily acquire if they will. When the mind is unoccupied or is absorbed by fantastic hopes or daydreams, we are haunted by these visions of which I am speaking to such an extent that we imagine that we are travelling abroad, crossing the sea, fighting, addressing the people, or enjoying the use of wealth that we do not actually possess, and seem to ourselves not to be dreaming but acting. Surely, then, it may be possible to turn this form of hallucination to some profit.

I am complaining that a man has been murdered. Shall I not bring before my eyes all the circumstances which it is reasonable to imagine must have occurred in such a connexion? Shall I not see the assassin burst suddenly from his hiding-place, the victim tremble, cry for help, beg for mercy, or turn to run? Shall I not see the fatal blow delivered and the stricken body fall? Will not the blood, the deathly pallor, the groan of agony, the death-rattle, be indelibly impressed upon my mind?