Aratus (28.4-29.1)

But the games were also celebrated at Argos, and then for the first time the privilege of asylum and safe-conduct which had been granted to contestants in the games was violated, since the Achaeans treated as enemies and sold into slavery all contestants in the games at Argos whom they caught travelling through their territory. So fierce and implacable was Aratus in his hatred of tyrants.

A little while after this,[*] Aratus heard that Aristippus was plotting against Cleonae, but feared to attack it while his enemy was posted at Corinth; he therefore assembled an army by public proclamation. And after ordering his troops to carry provisions for several days, he marched down to Cenchreae, by this stratagem inviting Aristippus to attack Cleonae in the belief that his enemy was riot at hand; and this was actually what happened. For the tyrant set out at once from Argos with his forces.