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Library of Pantainos Lying partially under and behind the Late Roman wall are the remains of a building identified by its inscribed marble lintel block as the Library of Pantainos, dedicated to Athena ... The dedicator, Titus Flavius Pantainos, was the son of the head of a philosophical school and refers to himself as a priest of the philosophical muses. A second inscription preserves the library rules: "No book is to be taken out because we have sworn an oath.