Athenodoros Cordylion was a Stoic philosopher, born in Tarsus. He was the keeper of the library at Pergamon, where he was known to cut out passages from books on Stoic philosophy if he disagreed with them:The passages disapproved by the school were expunged from his [Zeno's] works by Athenodorus the Stoic, who was in charge of the Pergamene library; and that afterwards, when Athenodorus was detected and compromised, they were replaced.