Institutio Oratoria

For there is no single law or fixed rule governing the method of defence. We must consider what is most advantageous in the circumstances and nature of the case, and treat the wound as its nature dictates, dressing at once or, if the dressing can be delayed, applying a temporary bandage.

Again I do not regard it as a crime to repeat a statement of a fact more than once, as Cicero does in the pro Cluentio. It is not merely permissible, but sometimes necessary, as in trials for extortion and all complicated cases; and only a lunatic will allow a superstitious observance of rules to lead him counter to the interests of his case.