History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
But the Lacedaemonians, taking up the allies of the Arcadians that were present, invaded Mantinea, and encamping at the sanctuary of Heracles proceeded to ravage the country.
But the Argives and their allies, on seeing them, took up a position that was steep and difficult of access, and drew up for battle.
The Lacedaemonians went against them at once, advancing within a stone's throw or a javelin's cast; then one of the older men, seeing that they were going against a strong place, called out to Agis that he thought to cure one ill with another, meaning that the motive of his present unseasonable eagerness was to make amends for the culpable retreat from Argos.[*](cf. 5.61.1; 5.63.2.)
Agis, then, whether on account of this call, or because it suddenly struck him, too, that some other course was better than the one he was following, led his army back again in all haste without coming into conflict.