Φιλοποίμην δὲ ὑπὸ τὸν καιρὸν ἐσπεσὼν τοῦτον ἐς τὴν Σπάρτην ἠνάγκασεν ἐς τὸ Ἀχαϊκὸν Λακεδαιμονίους συντελέσαι. μετὰ δὲ οὐ πολὺν χρόνον Τίτος μὲν Ῥωμαίων τῶν περὶ τὴν Ἑλλάδα ἡγεμὼν καὶ Διοφάνης ὁ Διαίου Μεγαλοπολίτης, ἄρχειν ἐν τῷ τότε ᾑρημένος τῶν Ἀχαιῶν, ἤλαυνον ἐπὶ τὴν Λακεδαίμονα, ἐπενεγκόντες αἰτίαν Λακεδαιμονίοις βουλεύειν σφᾶς νεώτερα ἐς Ῥωμαίους· Φιλοποίμην δέ, καίπερ ἐν τῷ παρόντι ἰδιώτης ὤν, ἀπέκλεισαν ὅμως ἐπιοῦσιν αὐτοῖς τὰς πύλας.
Λακεδαιμόνιοι δὲ τούτων τε ἕνεκα καὶ ὧν ἐς ἀμφοτέρους τοὺς τυράννους ἐτόλμησεν, ἐδίδοσαν οἶκον αὐτῷ τὸν Νάβιδος ἐς πλέον ἢ τάλαντα ἑκατόν· ὁ δὲ ὑπερεφρόνησέ τε τῶν χρημάτων καὶ ἐκέλευε τοὺς Λακεδαιμονίους θεραπεύειν δόσεσιν ἀνθʼ αὑτοῦ τοὺς ἐν τῷ συλλόγῳ τῶν Ἀχαιῶν πιθανοὺς τῷ πλήθει, ταῦτα δὲ ἐς Τιμόλαον αὐτῷ λέγουσιν ὑποσημαίνεσθαι. ἀπεδείχθη δὲ καὶ αὖθις Ἀχαιῶν στρατηγῆσαι.
Λακεδαιμονίων δὲ τηνικαῦτα ἐς ἔμφυλον προηγμένων στάσιν, τριακοσίους μὲν τῆς στάσεως μάλιστα αἰτίους ἐξέβαλεν ἐκ Πελοποννήσου καὶ τῶν εἱλώτων ἀπέδοτο ὅσον τρισχιλίους, τείχη δὲ περιεῖλε τῆς Σπάρτης καὶ τοῖς ἐφήβοις προεῖπε μὴ τὰ ἐκ τῶν νόμων τῶν Λυκούργου μελετᾶν, ἐφήβοις δὲ τοῖς Ἀχαιῶν κατὰ ταὐτὰ ἀσκεῖσθαι. καὶ τοῖς μὲν ὕστερον ἀποδώσειν ἔμελλον Ῥωμαῖοι παιδείαν τὴν ἐπιχώριον·
Ἀντίοχον δὲ ἀπόγονον Σελεύκου τοῦ ὀνομασθέντος Νικάτορος καὶ Σύρων τὴν σὺν αὐτῷ στρατιὰν Μανίου καὶ Ῥωμαίων ἐν Θερμοπύλαις νικησάντων καὶ Ἀρισταίνου τοῖς Ἀχαιοῖς τοῦ Μεγαλοπολίτου παραινοῦντος ἐπαινεῖν τὰ Ῥωμαίοις ἀρέσκοντα ἐπὶ παντὶ μηδὲ ἀνθίστασθαί σφισιν ὑπὲρ μηδενός, ὁ Φιλοποίμην ἀπεῖδεν ἐς τὸν Ἀρίσταινον σὺν ὀργῇ καὶ αὐτὸν τῇ Ἑλλάδι ἔφη τὴν πεπρωμένην ἐπιταχύνειν· Λακεδαιμονίων δὲ τοὺς φεύγοντας Μανίου καταδέξασθαι θέλοντος τῷ μὲν ἀντέπραξεν ἐς τὸ βούλευμα, ἐκείνου δὲ ἀπελθόντος τότε ἤδη κατελθεῖν τοὺς φυγάδας ἐφίησιν ἐς Σπάρτην.
ἔμελλε δʼ ἄρα ὑπεροψίας δίκη περιήξειν καὶ Φιλοποίμενα. ὡς γὰρ δὴ τῶν Ἀχαιῶν ὄγδοον ἀπεδείχθη τότε ἡγεμών, ἀνδρὶ οὐ τῶν ἀδόξων ὠνείδισεν ἁλῶναι ζῶντα ὑπὸ τῶν πολεμίων αὐτόν· καὶ—ἦν γὰρ τηνικαῦτα ἐς Μεσσηνίους Ἀχαιοῖς ἔγκλημα—Λυκόρταν σὺν τῇ στρατιᾷ ὁ Φιλοποίμην ἀποστέλλει δῃώσοντα τῶν Μεσσηνίων τὴν χώραν, αὐτὸς δὲ τρίτῃ μάλιστα ὕστερον ἡμέρᾳ, πυρετῷ τε ἐχόμενος πολλῷ καὶ πρόσω βεβιωκὼς ἑβδομήκοντα ἐτῶν, ὅμως ἠπείγετο μετασχεῖν Λυκόρτᾳ τοῦ ἔργου· ἱππέας δὲ καὶ πελταστὰς ἦγεν ὅσον ἑξήκοντα.
Λυκόρτας μὲν δὴ καὶ ὁ σὺν αὐτῷ στρατὸς ἀνέστρεφον ἤδη τηνικαῦτα ἐς τὴν οἰκείαν, οὔτε ἐργασάμενοι μέγα Μεσσηνίους οὐδὲν οὔτε αὐτοὶ παθόντες· Φιλοποίμενα δὲ—ἐβλήθη γὰρ ἐν τῇ μάχῃ τὴν κεφαλὴν καὶ ἀπέπεσεν ἀπὸ τοῦ ἵππου—ζῶντα ἐς Μεσσήνην ἄγουσιν αὐτόν. συνελθόντων δὲ αὐτίκα ἐς ἐκκλησίαν, διάφοροι παρὰ πολὺ καὶ οὐ πάντων κατὰ ταὐτὰ ἐγίνοντο αἱ γνῶμαι·
Δεινοκράτης μὲν καὶ ὅσοι τῶν Μεσσηνίων ἦσαν δυνατοὶ χρήμασι, παρεκελεύοντο ἀποκτεῖναι Φιλοποίμενα· οἱ δὲ τοῦ δήμου περιποιῆσαι τὰ μάλιστα εἶχον σπουδήν, πλέον τι ἢ παντὸς τοῦ Ἑλληνικοῦ πατέρα ὀνομάζοντες. Δεινοκράτης δὲ καὶ ἀκόντων Μεσσηνίων ἔμελλεν ἄρα Φιλοποίμενα ἀναιρήσειν ἐσπέμψας φάρμακον.
Λυκόρτας δὲ μετʼ οὐ πολὺ ἀθροίσας ἔκ τε Ἀρκαδίας καὶ παρʼ Ἀχαιῶν δύναμιν ἐστράτευσεν ἐπὶ Μεσσήνην· καὶ ὁ δῆμος αὐτίκα ὁ τῶν Μεσσηνίων προσεχώρησε τοῖς Ἀρκάσι, καὶ οἱ Φιλοποίμενι αἰτίαν θανάτου παρασχόντες ἁλόντες πλὴν Δεινοκράτους ὑπέσχον τιμωρίαν οἱ ἄλλοι, Δεινοκράτης δὲ ἀφίησιν αὐτοχειρίᾳ τὴν ψυχήν. κατάγουσι δὲ καὶ ἐς Μεγάλην πόλιν τοῦ Φιλοποίμενος τὰ ὀστᾶ οἱ Ἀρκάδες.
About this time Philopoemen threw himself into Sparta, and compelled the Lacedaemonians to join the Achaean League. Not long afterwards Titus, the Roman commander in Greece, and Diophanes, son of Diaeus, a Megalopolitan, who had been elected head of the Achaean League, marched against Lacedaemon, because they charged the Lacedaemonians with plotting against Rome. But Philopoemen, though at the time he was only a private man, shut the gates against them. For this service and for the exploits he had performed against both the tyrants, the Lacedaemonians offered to give him the house of Nabis, worth more than a hundred talents. But he disdained the proffered wealth, and bade the Lacedaemonians rather use their presents to win the good graces of the men who had the ear of the multitude in the Achaean diet. It is said that this innuendo was levelled at Timolaus. Philopoemen was again appointed general of the Achaeans. At that time the Lacedaemonians had been embroiled in civil strife ; so Philopoemen banished three hundred of the ringleaders from Peloponnese, sold about three thousand Helots, dismantled the walls of Sparta, and forbade the lads to exercise according to the laws of Lycurgus, ordering them to train like the Achaean lads. However, the national Spartan education was to be afterwards restored by the Romans. After the Romans under Manius had defeated at Thermopylae the Syrian army under Antiochus, descendant of that Seleucus who bore the name of Nicator, Aristaenus of Megalopolis advised the Achaeans to acquiesce in all the wishes of the Romans, and withstand them in nothing. Whereupon Philopoemen looked angrily at him, and said that he was hastening the doom of Greece. When Manius wished to restore the Lacedaemonian exiles, Philopoemen opposed his design; but when Manius had departed, then, and not till then, did Philopoemen suffer the exiles to return to Sparta. 2. But the penalty of a haughty spirit was to overtake Philopoemen at last. When he was chosen general of the Achaeans for the eighth time, he twitted a man of some mark with having been taken alive by the enemy. Now, at that time the Achaeans had some grievance against the Messenians; so Philopoemen sent Lycortas with a force to lay waste the Messenian territory. But just two days afterwards, though he was suffering from a high fever, and was more than seventy years of age, he yearned to share the enterprise of Lycortas ; so he put himself at the head of some sixty horsemen and targeteers.
But now Lycortas and his army were in full retreat for home, without having exchanged any very hard knocks with the enemy. Philopoemen received a wound in the head in the action and fell from his horse, and they carried him alive to Messene. An assembly of the people was immediately convened, in which very different opinions were expressed. Dinocrates and all the wealthy Messenians advised to put Philopoemen to death; but the popular party were most anxious to save him, pitying him, and calling him the father of the whole Greek nation. However, Dinocrates sent poison to him in the gaol, and thus took him off, contrary to the wishes of the people. Not long afterwards Lycortas raised a force in Arcadia and Achaia, at the head of which he marched against Messene. The Messenian populace went over to them at once ; and all who had been accomplices in the death of Philopoemen were taken and punished, except Dinocrates, who laid hands on himself. The bones of Philopoemen were brought back to Megalopolis by the Arcadians.