Word decomposition
Si ku Shi Wen is the collection place of ancient court books in China. Four books, namely classics, history, books and collections, are collected in different libraries, and the ancient court books are explained in detail. The Book of the New Tang Dynasty: "Both of them have four books, followed by A, B, C and D, and listed the classics, history, philosophy and collections." Therefore, later generations also called these four parts "Four Treasures". Look at the explanation of the abstract, explain the main points in detail and extract the main points. Tang Hanyu's interpretation of learning: "The recorder must mention its essentials, and the word-maker must hook its mystery." Xu Teli, how to learn philosophy? ":"It is better to do some abstract work than to study. "Put forward the main points. Lu Xiuji by Sun Li, about Ji Yun.