操矛入室

Explanation: Metaphor understanding of each other, find out the flaws so, on the other side of the argument to refute each other. 　　Source: A phrase from the "Han Zheng Xuan Chuan": "What the city when he was a good break," Ram "study, then the" ram legalistic "," Zuo Gao Huang "," Guliang or disabled. "Hyun is issued" legalistic " needle "Gaohuangshu" from "or disabled." Hugh see Ertan said: 'Yasunari into my room, I speak my spear to cutting almost!' " 　　Examples: Chun Xi early are still many places under the old Zen Masters say, young teacher, ~, aid, according to ancient and modern, in its confidential, the same care for salty sigh hack said 'letter book kitchen, not with the competition also! '"★ Song Ye Shi," the letter division title end quote "