即以其人之道，还治其人之身
就拿这个人整治他人的方式,反过来整治这个人本身
do unto them as they do unto us;answer a fool according to his folly;deal with sb. as he deals with you;does sb. with his own physique;give sb. a dose of his own medicine;pay sb. back in his own coin;requite like for like;pay back in kind 就用那个人对付别人的办法返回来对付那个人自己。
即以其人之道,还治其人之身出处
宋·朱熹《中庸集注》第十三章：“故君子之治人也，即以其人之道，还治其人之身。”
使用例句
况这班奸党，不知屈害多少忠良，即以其人之道，还治其人之身，极是快心之事。 ◎清·陈忱《水浒后传》第二十二回
即以其人之道,还治其人之身是成语。