Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, editor. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
infinitum autem, ut mox dicemus, in his quoque rebus momentum est; et nihil potest placere quod non decet.