Polybius speaks of him in terms of high praise, as a man of a generous and warlike disposition, and skilled in political transactions. In 185 BC, when the king had to fight against some discontented Egyptians, Aristonicus went to Greece and engaged a body of mercenaries there.
The passage highlights Aristonicus's role in supporting the king during a time of conflict with Egyptian rebels. Polybius praises him for his strategic thinking and political acumen.