XXI. A narration will be probable, if in it those characteristics are visible which are usually apparent in truth; if the dignity of the persons mentioned is preserved; if the causes of the actions performed are made plain; if it shall appear that there were facilities for performing them; if the time was suitable; if there was plenty of room; if the place is shown to have been suitable for the transaction which is the subject of the narration; if the whole business, in short, be adapted to the nature of those who plead, and to the reports bruited about among the common people, and to the preconceived opinions of those who hear. And if these principles be observed, the narration will appear like the truth.
But besides all this, it will be necessary to take care that such a narration be not introduced when it will be a hindrance, or when it will be of no advantage; and that it be not related in an unseasonable place, or in a manner which the cause does not require. It is a hindrance, when the very narration of what has been done comes at a time that the hearer has conceived great displeasure at something, which it will be expedient to mitigate by argument, and by pleading the whole cause carefully. And when this is the case, it will be desirable rather to scatter the different portions of the transactions limb by limb as it were over the cause, and, as promptly as may be, to adapt them to each separate argument, in order that there may be a remedy at hand for the wound, and that the defence advanced may at once mitigate the hatred which has arisen.
Again, a narration is of no advantage when, after our case has once been set forth by the opposite party, it is of no importance to relate it a second time or in another manner; or when the whole affair is so clearly comprehended by the hearers, as they believe at least that it can do us no good to give them information respecting it in another fashion. And when this is the case, it is best to abstain from any narration altogether. It is uttered in an unseasonable place, when it is not arranged in that part of the speech in which the case requires it, and concerning this kind of blunder we will speak when we come to mention the arrangement of the speech. For it is the general arrangement of the whole that this affects. It is not related in the manner which the cause requires, when either that point which is advantageous to the opposite party is explained in a clear and elegant