Institutio Oratoria

As regards other charges, they may all be dealt with by very similar methods. For they may be demolished either by conjecture, when we shall consider whether they are true, by definition, when we shall examine whether they are relevant to the case, by quality, when we shall consider whether they are dishonourable, unfair, scandalous, inhuman, cruel, or deserve any other epithet coming under the head of quality.

Such questions have to be considered, not merely in connection with the statement of the charges or the reasons alleged, but with reference to the nature of the case in its entirety. For instance, the question of cruelty is considered with regard to the charge of high treason brought against Rabirius [*]( Rabirius was accused of causing the death of Saturninus forty years after the event. ) by Labienus; of inhumanity in the case of Tubero who accused Ligarius when he was an exile and attempted to prevent Caesar from pardoning him; of arrogance as in the case of the charge brought against Oppius [*]( P. Oppius, quaestor to M. Aurelius Cotta in Bithynia, was charged by Cotta in a letter to the senate with misappropriation of supplies for the troops and with an attempt on his life. Cicero defended him in 69 B.C. The speech is lost. ) on the strength of a letter of Cotta.

Similarly, it may be shown that charges are hasty, insidious or vindictive. The strongest argument, however, which can be brought against a charge is that it involves peril to the community or to the judges themselves; we find an example of the former in the pro Tullio, [*](cp. IV. ii. 131. The speech is lost. ) where Cicero says

Who ever laid down such a principle as this, or who could be allowed, without grave peril to the community, to kill a man, just because he asserts that he feared that he himself might be

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killed by him?