战国时期，赵国有一位大将军叫赵奢。
他有一个儿子，名叫赵括。
赵括从小就很爱读书，特别是那些讲战略和兵法的书，他读得滚瓜烂熟。
每当说起这些书中的内容，没有人能比得过他，甚至连他的爸爸赵奢也很难反驳他。
然而，赵奢并不觉得这是一件好事。
他告诉妻子：“打仗是关系到生死的大事，但赵括却把它说得那么简单。唉！如果赵王不让他当将军还好，但如果让他当了，那么赵国就危险了。”
后来，赵国和秦国在长平发生了战争。
在大将军廉颇的领导下，秦军一直没能取得胜利。
这时，秦王派人散布谣言说：“秦军害怕的是赵括！”
听到这个消息的赵王，不顾大家的反对，决定让赵括代替廉颇，带领军队对抗秦军。
赵括接掌兵权后，信心满满地改变了廉颇的战略，并换掉了大批军官。
但他没想到，这一切都中了秦军的计谋。
最后，赵军被彻底打败，赵括自己也被箭射死了。
后人把这个故事引申为“纸上谈兵”这个成语，用来比喻那些只会在口头上谈论理论而不去实践的人。
这样的做法，如果用在解决实际问题上，往往会出大问题。
During the Warring States period, there was a great general in the Zhao State named Zhao She.
He had a son named Zhao Kuo.
Zhao Kuo loved reading books since he was young, especially those about strategy and military tactics. He knew them by heart.
Whenever he talked about the content of these books, no one could match him, not even his father, Zhao She.
However, Zhao She did not think this was a good thing.
He told his wife, "War is a matter of life and death, but Zhao Kuo makes it sound so simple. Alas! If the King of Zhao does not let him be a general, it's fine, but if he does, then the Zhao State will be in danger."
Later, the Zhao State and the Qin State had a war at Changping.
Under the leadership of General Lian Po, the Qin army could not win.
At that time, the King of Qin sent someone to spread rumors saying, "The Qin army is afraid of Zhao Kuo!"
Upon hearing this news, the King of Zhao ignored everyone's objections and decided to replace Lian Po with Zhao Kuo to lead the army against the Qin army.
After taking over the command, Zhao Kuo confidently changed Lian Po's strategy and replaced many officers.
But he did not expect that all of this fell into the Qin army's trap.
In the end, the Zhao army was completely defeated, and Zhao Kuo himself was shot dead by an arrow.
Later generations extended this story into the idiom 'Talking About Strategy on Paper', which比喻 people who only talk about theories on paper without putting them into practice.
Such practices, if used to solve practical problems, often lead to big problems.
