中国成语中有一个“矛盾”的故事,有一个人同时贩卖矛与盾,他向买家吹嘘他的矛是“无坚不摧”的,盾呢,是刀枪不入的。于是,有人马上提议他“以子之矛,攻子之盾”来验证一下他的宣传是否可靠,于是这人当场弄得哑口无言。此人采用“以子之矛,攻子之盾”的方法来反驳贩卖者的说法, There is a “contradiction” story in Chinese idioms. When one person at the same time sells spear and shield, he brags the buyer that his spear is “invincible.” So, someone immediately suggested that he “spear of the son, the shield of the assault ” to verify that his publicity is reliable, so the man was speechless on the spot. This person uses the method of “using the spear of the child and the attacker ” to refute the seller’s statement,