It may well be imagined that nothing else is so important in the whole art of oratory as the proper use of the passions.  A slender genius, aided by learning or experience, may be sufficient to manage certain parts to some advantage, yet I think they are fit only for instructing the judges, and as masters and models for those who take no concern beyond passing for good speakers.  But to possess the secret of forcibly carrying away the judges, of moving them, as we please, to a certain disposition of mind, of inflaming them with anger, of softening them to pity, so as to draw tears from them, all this is rare, tho by it the orator is made most distinguished and by it eloquence gains empire over hearts.  The cause itself is naturally productive of arguments, and the better share generally falls to the lot of the more rightful side of the question, so that whichever side wins by dint of argument, may think that so far they did not lack an advocate.  But when violence is to be used to influence the minds of the judges, when they are to be turned from coolly reflecting on the truth that works against us, then comes the true exercise of the orator’s powers; and this is what the contending parties can not inform us of, nor is it contained in the state of their cases.  Proofs, it is true, make the judges presume that our cause is the better, but passion makes them wish it to be such, and as they wish it, they are not far from believing it to be so.  For as soon as they begin to absorb from us our passions of anger, favor, hatred, or pity, they make the affair their own.  As lovers can not be competent judges of beauty, because love blinds them, so here a judge attentive to the tumultuous working of a passion, loses sight of the way by which he should proceed to inquire after the truth.  The impetuous torrent sweeps him away, and he is borne down in the current.  The effect of arguments and witnesses is not known until judgment has been passed, but the judge who has been affected by the orator, still sitting and hearing, declares his real sentiments.  Has not he who is seen to melt into tears, already pronounced sentence?  Such, then, is the power of moving the passions, to which the orator ought to direct all his efforts, this being his principal work and labor, since without it all other resources are naked, hungry, weak, and unpleasing.  The passions are the very life and soul of persuasion.

QUALITIES NEEDED IN THE ORATOR

What we require in the orator is, in general, a character of goodness, not only mild and pleasing, but humane, insinuating, amiable, and charming to the hearer; and its greatest perfection will be if all, as influenced by it, shall seem to flow from the nature of things and persons, that so the morals of the orator may shine forth from his discourse and be known in their genuine colors.  This character of goodness should invariably be maintained by those whom a mutual tie ought to bind in strict union, whenever it may happen that they suffer anything from each other, or pardon, or make satisfaction, or admonish, or reprimand, but far from betraying any real anger or hatred.