Aratus (23.4-23.5)

But when they had ceased and quiet had ensued, he summoned his strength and in behalf of the Achaeans made a speech which befitted their exploit, and persuaded the Corinthians to join the Achaean League. He also gave them back the keys to their gates, of which they then became possessed for the first time since the time of Philip of Macedon. Of the officers of Antigonus, he dismissed Archelaüs, who had been taken prisoner, but Theophrastus, who would not quit his post, he slew;

as for Persaeus, on the capture of the citadel he made his escape to Cenchreae. And at a later time, as we are told, when he was leading a life of leisure, and someone remarked that in his opinion the wise man only could be a good general, Indeed, he replied, there was a time when I too particularly liked this doctrine of Zeno’s; but now, since the lesson I got from the young man of Sicyon, I am of another mind. This story of Persaeus is told by many writers.