Philip of Macedon offered to come and drive out Nabis if the Achaians would help him, but they distrusted him, and did not choose to go to war with the Romans, whom the robber Ætolians had called from Italy to assist them.  However, Philip reduced Nabis to make all sorts of promises and treaties, which, of course, he did not keep, but invited in the Ætolians to assist him.  This, however, brought his punishment on him, for soon after their arrival these allies of his murdered him, and began to rob all Laconia.  Philopœmen and his Achaians at once marched into the country, helped the Spartans to deliver themselves from the robbers, and persuaded them to join the League.  They were so much pleased with him that they resolved to give him Nabis’ palace and treasure, but he was known to hate bribes so much that nobody could at first be found to make him the offer.  One man was sent to Megalopolis, but when he saw Philopœmen’s plain, grave, hardy life, and heard how much he disapproved of sloth and luxury, he did not venture to say a word about the palace full of Eastern magnificence, but went back to Sparta.  He was sent again, and still found no opportunity; and when, the third time, he did speak, Philopœmen thanked the Spartans, but said he advised them not to spend their riches on spoiling honest men, whose help they might have at no cost at all, but rather to use them in buying over those who made mischief among them.