以子之矛，攻子之盾

以子之矛，攻子之盾yǐ zǐ zhī máo，gōng zǐ zhī dùn

◎用你自己的矛来刺你自己的盾。比喻用对方的论点来驳斥对方。

英文Turn sb's battery against himself; Fight sb.with his own weapon;

以子之矛，攻子之盾

• 英语 lit. use sb's spear to attack his shield (idiom, derived from Han Feizi 韓非子|韩非子)​; turning a weapon against its owner, fig. to attack an opponent using his own devices, hoist with his own petard

以子之矛，攻子之盾yǐ zǐ zhī máo gōng zǐ zhī dùn

◎比喻以对方的观点、理论来反驳对方。

例证语本《韩非子 · 难一》：“楚人有鬻楯与矛者，誉之曰：『吾楯之坚，物莫能陷也。』又誉其矛曰：『吾矛之利，于物无不陷也。』或曰：『以子之矛，陷子之楯何如？其人弗能应也。』”