What is said in the Book of Odes and by Confucius; refers to the teachings or classics of Confucianism, often used to denote ancient doctrines or authoritative pronouncements.
老教授常常引用诗云子曰来阐述他的教育理念，强调传统文化的重要性。
The old professor often quoted from the Book of Odes and Confucius to elaborate on his educational philosophy, emphasizing the importance of traditional culture.
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