"Cai Gen Tan" says: "To make friends, you must have a certain chivalrous spirit, and to be a human being, you must have a little heart." , go into danger for friends and people, and survive hardships. The so-called "suxin" here is a state of simplicity, purity and selflessness.

"Cai Gen Tan" says, "To make friends, you must have a certain chivalrous spirit, and to be a human being, you must have a little heart." The main idea lies in the eight words of "loyalty, courage, justice and selflessness." "Xia" is an aspect of traditional Chinese culture. In essence, it can be summarized as "loyalty, righteousness, and courage." Go into danger for the sake of the people and survive the hardships. The so-called "suxin" here is a state of simplicity, purity and selflessness.

Leaving aside the nature of Xia, let us first give an example of frank communication between friends. In the Northern Song Dynasty, there was a man named Tang Su. He and Ding Wei were very good friends. When the two were neighbors, they often got together to play chess and chat. Later, when Ding Wei became prime minister, Tang Su moved his family away. The companions all found it strange. Is there a gap between the two of them?

Tang Su said: "I want to consolidate our long-standing friendship! Ding Gong is now the prime minister, and I see him every day." Both of us have to pay him the courtesy of the Prime Minister, and both of us are uncomfortable. If I don't go to see him and we become estranged, the Prime Minister will definitely become suspicious. Now that I live far away, I come to visit him when I really want to see him. This way I can avoid being misunderstood, I can have a clear conscience, and my friendship with Mr. Ding can be preserved."

Tang Su thinks about his friends in everything and knows how to guard against others. He is indeed a good friend. For a villain, when a high-ranking official among his companions appears, he must be very happy, and he will fawn over others, become a clique, and cause endless troubles. It is difficult for ordinary people to do Tang Su's righteous act of retreating for self-interest.

When it comes to the word "xia", it is inseparable from the word "chivalry and justice". "Xia" focuses on promoting the righteousness of society. "Justice" is often the main theme of "Xia". No matter how vicious and dangerous the world is, as long as "justice" exists, "Xia" will still be able to pass unimpeded and be sure to win. Here, righteousness is also one of the manifestations of "plain heart".

"Justice" is the common theme of many martial arts novels. No matter the novels of Jin Yong, Liang Yusheng or Gu Long, they all embody the spirit of "justice must prevail and evil must defeat".