温故知新

Pronunciation: wēn gù zhī xīn
Literal meaning: Review old know new

Origin & Usage

This idiom comes directly from Confucius's teaching that by reviewing (温) the old (故), one can understand (知) the new (新). The metaphor originally referred to warming up old food to make it fresh again, suggesting that knowledge requires regular review to remain vital. During the Tang Dynasty, it became a fundamental principle of classical education, emphasizing that true learning combines respect for tradition with openness to new insights. The concept gained particular significance during the Song Dynasty renaissance, when scholars reinterpreted classical texts for contemporary challenges. Modern usage emphasizes the value of using historical knowledge to understand present situations, particularly relevant in fields like policy-making, business strategy, and cultural studies.

Examples

English: "By reviewing past projects, she found solutions for current challenges"

Chinese: 通过回顾过去的项目，她找到了解决当前挑战的方法

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