Rather, Ariarathes Eusebes probably spent his youth studying in Athens, where he seems to have become a friend of the future king of Pergamon, Attalus II Philadelphus.
Sebaliknya, Ariarathes Eusebes mungkin menghabiskan masa mudanya belajar di Athena, di mana ia tampaknya telah menjadi teman raja Pergamon di kemudian hari, Attalus II Philadelphus.