Agis and Cleomenes
Plutarch
Plutarch. Plutarch's Lives, Vol. X. Perrin, Bernadotte, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1921.
Learning that Aratus and the Achaeans believed that this revolution had jeopardized his position, and therefore did not think that he would venture forth outside of Sparta, or leave the city while it was still in the suspense of so great an agitation, he thought it a fine and helpful thing to make a display of the ready zeal of his army to his enemies.
Accordingly, he invaded the territory of Megalopolis, collected large booty, and devastated the country far and wide. And finally arresting a company of actors who were passing through the country from Messené, he built a theatre in the enemy’s territory, instituted a contest for a prize of forty minae, and sat spectator for a whole day; not that he felt the need of a spectacle, but in exultant mockery, as it were, of his enemies, and to show to the world by his contempt for them that he held complete control of affairs, with something, as it were, to spare.