Institutio Oratoria

A brief example of a similar argument is to be found in Virgil, [*](Aen. ii. 540. )

1. But he, whom falsely thou dost call thy father,
2. Even Achilles, in far other wise
3. Dealt with old Priam, and Priam was his foe.

Historical parallels may however sometimes be related in full, as in the pro Milone [*](pro Mil. iv. 9. ) :

When a military tribune serving in the army of Gaius Marius, to whom he was related, made an assault upon the honour of a common soldier, the latter killed him; for the virtuous youth preferred to risk his life by slaying him to suffering such dishonour. And yet the great Marius acquitted him of all crime and let him go scot free.

On the other hand in certain cases it will be sufficient merely to allude to the parallel, as Cicero does in the same speech [*](ib. iii. 8. ) :

For neither the famous Servilius Ahala nor Publius Nasica nor Lucius Opimius nor the Senate during my consulship could be cleared of serious guilt, if it were a crime to put wicked men to death.

Such parallels will be adduced at greater or less length according as they are familiar or as the interests or adornment of our case may demand.