Institutio Oratoria

Again in deliberative assemblies how can we advise a policy without raising the question of what is honourable? Nay, even the third department of oratory, which is concerned with the tasks of praise and denunciation, must without a doubt deal with questions of right and wrong.

For the orator will assuredly have much to say on such topics as justice, fortitude, abstinence, self-control and piety. But the good man, who has come to the knowledge of these things not by mere hearsay, as though they were just words and names for his tongue to employ, but has grasped the meaning of virtue and acquired a true feeling for it, will never be perplexed when he has to think out a problem, but will speak out truly what he knows.