Chinese idiom · 成语
纸上谈兵
Meaning
To theorize without practical experience; armchair strategizing.
Character by character
Origin and story
Historical accountThe story associated with this idiom appears in Sima Qian’s Shiji (史記), volume 81. Zhao Kuo, the son of the general Zhao She, had studied military writings since youth and was confident in debating strategy. His father remained unconvinced that this made him fit to command. During the conflict at Changping, the king of Zhao replaced the experienced Lian Po with Zhao Kuo despite objections from Lin Xiangru and Zhao Kuo’s mother.
The account describes Zhao Kuo changing the army’s arrangements, being outmaneuvered by the Qin commander Bai Qi, and dying in an attempted breakout after his forces were surrounded. The idiom is a later expression associated with that story, rather than a quotation of those four characters from the Shiji. It criticizes discussion or plans detached from practical conditions.
In everyday life
这个方案看起来很好，但得先试一试，不能只是纸上谈兵。
This plan looks good, but we need to try it out first rather than just discuss it in theory.
The criticism is about failing to connect theory with practice, not about studying or planning itself.