52．戈部 weapon
同same室room操operate戈dagger-axe (an ancient weapon)
This idiom is used to describe internal strife, such as when family members fight each other, or when members in the same work-unit work for their own interests rather than cooperating for the sake of the group. This is similar to the English expression: “A house divided against itself.”
【拼音】tōng shì cāo gē
【解释】操：拿；戈：兵器。自家人动刀枪。指兄弟争吵。泛指内部斗争。
【出处】《後汉书·郑玄传》载，何休好《公羊传》而恶《左传》、《谷梁传》，郑玄乃著论以驳之，“休见而叹曰：‘康成（玄之字）入吾室，操吾矛，以伐我乎！’”
