He captured many cities and made himself master of boundless treasure, thus showing plainly to his friends that the violation of a treaty is contempt for the gods, but that in outwitting one's enemies there is not only justice, but also great glory, and profit mixed with pleasure.
Edition :
Plutarch Lives V: Agesilaus and Pompey, Pelopidas and Marcellus, Ed. Jeffrey Henderson, trans. Bernadotte Perrin (The Loeb Classical Library 87), Harvard University Press: Cambridge/MA - London 1961 (first ed. 1917).
Remark :
long-term consequence: By this act of violence Agesilaus II shows his friends "that the violation of a treaty is contempt for the gods, but that in outwitting one's enemies there is not only justice, but also great glory, and profit mixed with pleasure (Plut. Ages. 9.3)".