以其人之道，還治其人之身
yǐqírénzhīdào,huánzhìqírénzhīshēn
ㄧˇ ㄑㄧˊ ㄖㄣˊ ㄓ ㄉㄠˋ , ㄏㄨㄢˊ ㄓˋ ㄑㄧˊ ㄖㄣˊ ㄓ ㄕㄣ
Simplified 以其人之道，还治其人之身
- 1to use an opponent's own methods to obtain retribution (idiom, from Song dynasty neo-Confucianist Zhu Xi 朱熹[Zhu1 Xi1])
- 2to get revenge by playing sb back at his own game; to give sb a taste of his own medicine