评第一段。据Google总结：The extent to which Arab conquerors destroyed Persian books during the 7th-century Islamic conquest is a subject of historical debate…Alleged Destruction: Some accounts, often cited in later sources, describe Arab commanders (like Saʿd b. ʾabī Waqqāṣ) destroying Persian libraries under the orders of Caliph ʿUmar / Cultural Shift: A significant factor in the loss of literature was the adoption of the Arabic language and script, rendering Pahlavi (the language of Sassanid Persia) largely unused and "dead" over time. / Historical Debate: Many scholars argue that stories of widespread, intentional, and systemic book burning are exaggerated or "legends". Similar stories about the burning of the Library of Alexandria have also been largely disproven as later fabrications.（许多学者指出，关于大规模、蓄意且系统性焚书的种种说法，实则言过其实，甚至仅属“传说”。同样，关于亚历山大图书馆被焚毁的类似传闻，也大多已被证伪，确认为后世编造的虚构故事。）