Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
It is to such men that I would compare those who spend their whole time at the expense of much study and energy in composing declamations, which they aim at making as unreal as possible. The rhetoric on the other hand, which I am endeavouring to establish and the ideal of which I have in my mind's eye, that rhetoric which befits a good man and is in a word the only true rhetoric, will be a virtue.
Philosophers arrive
and if there are virtues, of which nature has given us some rudimentary sparks, even before we were taught anything about them, as for instance justice, of which there are some traces even among peasants and barbarians, it is clear that man has been so formed from the beginning as to be able to plead on his own behalf, not, it is true, with perfection, but yet sufficiently to show that there are certain sparks of eloquence implanted in us by nature.