In traditional Chinese characters, the word “yi” is written in the form of “yi”, and the expression of image is “the next me under the lamb”. As the saying goes, “fight tiger brothers, fight father and son soldiers.” This proverb reflects the meaning of the word “righteousness”. Why does this proverb “fight tiger brothers, fight father and son soldiers” reflect the meaning of the word “righteousness”? Because brothers have deep brotherhood, they think of each other in their hearts. When fighting tigers, in order to protect their brothers, they are unwilling to see their brothers hurt by tigers, they will desperately sacrifice their lives. So desperate, so not to cherish their own lives, not for the return of brothers, so desperate, not for the gratitude of brothers, just because brothers have each other in their hearts. The same is true of “father and son soldiers in battle”. In order to protect each other, fathers and sons would rather sacrifice their lives, but also protect each other’s lives. It can be seen that righteousness contains the meaning of sacrificing one’s life for another. Now, let’s look at the traditional Chinese characters of the word “Yi”. Why is the expression content of the traditional Chinese characters of the word “Yi” the “next me under the lamb”?