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Open the tool →知其然而不知其所以然 (zhī qí rán ér bù zhī qí suǒ yǐ rán) is a Chinese idiom (chengyu) meaning “to know what something is but not why it is so”.
知其然而不知其所以然 is pronounced zhī qí rán ér bù zhī qí suǒ yǐ rán in Mandarin Chinese.
Literally, 知其然而不知其所以然 means “to know that it is so, but not to know why it is so”. It is used to mean “to know what something is but not why it is so”.
然:这样,如此。知道是这样,但不知道为什么是这样。只知道事物的表面现象,不知事物的本质及其产生的原因