Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
In the sacred games different methods are employed to excite and calm the soul, different melodies are required for the war-song and the entreaty sung by the suppliant on bended knee, while the war-note of the trumpet that leads the army forth to battle has no resemblance to the call that sounds the retreat.
It was the undoubted custom of the Pythagoreans, when they woke from slumber, to rouse their souls with the music of the lyre, that they might be more alert for action, and before they retired to rest, to soothe their minds by melodies from the same instrument, in order that all