Athenodorus Cordylion was a Greek philosopher and mathematician who lived in the 4th century BC. He is best known for his work on geometry and astronomy, but he also wrote on a wide range of topics, including philosophy, ethics, and politics. This
From Wikipedia
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.