Agis and Cleomenes

Therefore men admired the swiftness and intelligence of Cleomenes; and those who before this had mocked at him for imitating, as they said, Solon and Lycurgus in the abolition of debts and the equalization of property, were now altogether convinced that this imitation was the cause of the change in the Spartans.

For these were formerly in so low a state and so unable to help themselves, that Aetolians invaded Laconia and took away fifty thousand slaves. It was at this time, we are told, that one of the elder Spartans remarked that the enemy had helped Sparta by lightening her burden.