Harmony between generals and prime ministers originated from "making good friends with Lian and Lin" (or "pledging forgiveness under a thorn") in "Historical Records: Biography of Lian Po and Lin Xiangru".

"Historical Records·Biography of Lian Po and Lin Xiangru" is composed of three stories: "Returning the Perfect Bi to Zhao", "Meeting in Mianchi", and "Being Good Friends with Lian and Lin" (or "Pleading for Sin under a Thorn").

The "bi" in "The completed jade returns to Zhao" refers to "He's Bi".

It is the name of a piece of jade and has an extraordinary origin.

According to legend, in the Chu State during the Spring and Autumn Period, a man named Bian He picked up a piece of jade (that is, unprocessed jade) in the Chu Mountains and dedicated it to King Li of Chu.

King Li asked an expert to identify jade, and the result was that it was a stone.

King Li was furious, thinking that Bian He was deceiving and teasing him, so he cut off Bian He's left foot for deceiving the king.

Soon, King Li died and King Wu came to the throne. Bian He dedicated this piece of jade to King Wu.

King Wu also asked experts to identify jade, and the result was that it was a stone. King Wu also chopped off Bian He's right foot for deceiving the king.

After King Wu died, King Wen ascended the throne.

Bian He carried Yu Pu to the foot of Chu Mountain and cried loudly for three days and three nights.

I cried all my tears, and finally cried out blood.

After King Wen heard about it, he sent someone to ask him, "There are many people in the world who have had their feet cut off, but they have never cried like this. Why are you crying so sadly?" Bian He replied, "I am not having my feet cut off because of my feet."

I was sad and cried when I cut it off. What I was sad about was that some people thought that the jade was a stone and accused the loyal people of deceiving." King Wen then sent people to process the jade, and it turned out to be a rare piece.

Baoyu.

So he named this jade "He's Bi".

Due to the rarity of this gem and its extraordinary origin, it has become a treasure recognized by the world and is extremely valuable.

This is why the King of Qin did not hesitate to use fifteen cities as bait to defraud "He's Bi".

Lin Xiangru was not afraid of violence and was willing to risk his life to return the jade intact to Zhao. On the one hand, it was to safeguard national interests and fulfill his mission; on the other hand, it was also because of the preciousness of "He's Bi".

Extended information: Background: King Zhao Xiaocheng died in the 21st year (245 BC), and his son Zhao Yan succeeded to the throne as King Zhao Mouxiang.

In mourning for King Xiang's mediocrity, he deposed the virtuous crown prince Zhao Jia and made the virtuous Zhao Qian the crown prince.

King Zhao Daoxiang died after reigning for nine years, and Zhao Qian succeeded him as King Youmiao.

In 229 BC, Qin attacked Zhao State, and King Zhao Youmiao sent Li Mu and Sima Shang to lead an army to resist.

Li Mu was an outstanding general of Zhao who defeated the Qin army in Yufei (now Lulong, Hebei Province) in 233 BC and was granted the title of Lord Wu'an for his merits.

The Qin general was afraid of Li Mu, so he resorted to counter-intuitive tactics and used a lot of money to bribe King Zhao Youmiao's favorite minister Guo Kai. Guo Kai then spread rumors that Li Mu and Sima Shang wanted to rebel.

Zhao Qian, the king of Youmiao, had been mediocre since he was a child and had no virtue. He heard the rumors without analyzing them, so he replaced Li Mu and Sima Shang with Zhao Cong and Yan Ju, and killed Li Mu.

When the Qin army heard that Li Mu was dead, Qin general Wang Jian led his army to defeat Zhao and killed Zhao Cong in one battle.

The commander of the Qin army drove the Zhi people and defeated Handan.

King Zhao Youmiao was captured.

He was exiled to Fanling, Henan.

Zhao Jia was appointed King of Dai by the minister of the State of Zhao, Zhao Jia, and his capital was located in Dai City (now southwest of Yu County, Hebei Province).

In the third and sixth year of Dai Dynasty (222 BC), the Qin army marched into Dai City.

Dai Wang Jia surrendered to Qin, and Zhao fell.

In the 20th year of King Zhao Huiwen (278 BC), Lian Po attacked Qi eastward and defeated its army.

In February of the 20th year of King Zhao Huiwen (276 BC), he attacked Qi again and captured nine cities.

The following year, Lian Po attacked Wei and captured Fengling (20 miles south of today's Anyang, Henan) and Anyang City (43 miles southwest of today's Anyang County, Henan).

It was precisely because of the harmony between Lian and Lin that the Zhao State was united and dedicated to serving the country, making the Zhao State strong and prosperous for a time.

In 266 BC, King Zhao Huiwen died and King Xiaocheng was established.

At this time, the State of Qin adopted the strategy of "making friends far away and attacking near" by the Marquis Fan Sui. While making good friends with Qi and Chu, it attacked neighboring small countries.

In the fifty-fifth year of King Nan of Zhou Dynasty (260 BC), the Qin State attacked the underground party of Han.

The Korean defenders of Shangdang were isolated and helpless, so the prefect Feng Ting dedicated Shangdang to Zhao.

As a result, a war broke out between Qin and Zhao over the Shangdang area.

At this time, the famous general Zhao She was dead, Lin Xiangru was seriously ill, and Lian Po was the only one in charge of military affairs.

Therefore, King Zhao Xiaocheng ordered Lian Po to command 200,000 Zhao troops to stop the Qin army in Changping (now northwest of Gaoping County, Shanxi) (see Battle of Changping).

At that time, the Qin army had captured Yewang (now Qinyang, Henan) in the south and Shangdang (now central Shanxi) in the north, cutting off the connection between the north and south of Changping, and its morale was strong. However, the Zhao army had traveled a long distance and was not only at a disadvantage in terms of military strength.

, the situation is also in a passive and disadvantageous position.

Faced with this situation, Lian Po correctly adopted the operational policy of building fortifications, exhausting the enemy, and attacking the enemy at the right moment.

He ordered Zhao Jun to build tight barriers by taking advantage of the dangerous mountains.

Although the Qin army challenged him several times, Lian Po always restrained his troops and refused to leave.

At the same time, he gathered the people in the Shangdang area and engaged in battlefield transportation while building fortifications to resist the Qin Dynasty.

The Zhao army was heavily fortified, and the Qin army was unable to fight. There was nothing they could do, and their vigor was gradually losing.