Institutio Oratoria

More important is the question whether rhetoric is to be regarded as one of the indifferent arts, which in themselves deserve neither praise nor blame, but are useful or the reverse according to the character of the artist; or whether it should, as not a few even among philosophers hold, be considered as a virtue.

For my own part I regard the practice of rhetoric which so many have adopted in the past and still follow to-day, as either no art at all, or, as the Greeks call it, ἀτεχνία (for I see numbers of speakers without the least pretension to method or literary training rushing headlong in the direction in which hunger or their natural shamelessness calls them); or else it is a bad art such as is styled κακοτεχνία. For there have, I think, been many persons and there are still some who have devoted their powers of speaking to the destruction of their fellow-men.