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During the Spring and Autumn period, Confucius possessed extensive teaching experience. He often discussed problems with his students, helping them resolve various difficult questions. He encouraged his students to cultivate excellent virtues and delve deeply into their studies.
He proposed the concepts of 'learning and practicing what one has learned at regular intervals' and 'reviewing the old to gain new understanding' (学而时习之, 温故而知新).
When his students praised Confucius for his teaching patience, Confucius humbly responded, 'I learn without tiring and teach without weariness' (学而不厌,诲人不倦).

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Open the tool →温故知新 (wēn gù zhī xīn) is a Chinese idiom (chengyu) meaning “Review the old and learn the new”.
温故知新 is pronounced wēn gù zhī xīn in Mandarin Chinese.
Literally, 温故知新 means “review old, know new”. It is used to mean “Review the old and learn the new”.
温故知新 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
温:温习;故:旧的。温习旧的知识,得到新的理解和体会。也指回忆过去,能更好地认识现在。