Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Once, however, the judgment is formed and out of danger of perversion, I should strongly recommend the reading of ancient authors, since if, after clearing away all the uncouthness of those rude ages, we succeed in absorbing the robust vigour and virility of their native genius, our more finished style will shine with an added grace: I also approve the study of the moderns at this stage, since even they have many merits.
For nature has not doomed us to be dullards, but we have altered our style of oratory and indulged our caprices over much. It is in their ideals rather than their talents that the ancients show themselves our superiors. It will therefore be possible to select much that is valuable from modern writers, but we must take care that the precious metal is not debased by the dross with which it is so closely intermingled.