The symbol of Song Zhen means that loyal subjects are brighter than national prestige when they are four years old.

It means that faithful pine and cypress stand firm in the cold winter, and loyal ministers are more loyal and honest in times of national disaster.

This sentence is taken from Eighty-one Articles of the Book of Jin. The original sentence is, vibration dead, Andy anyway, Zhao Yue, "husband chastity scattered in the cold, loyal minister Ming in the national crisis. Yizhou secretariat, reasonable, sincere contracting the banner of righteousness, was appointed as a partial teacher, second only to Feng Jingen and Kuangyi's honor. I really feel my heart. You can recruit generals from the west, increase regular attendants, be the commander-in-chief of military affairs in Yiliang and Qinliangning, and be the magistrate of Yidu and Shu Ning. At the beginning of the article, Mao Xuanzan, Mu Mu, a general who can help the country, a captain of Yi Xi, and a magistrate of Zitong County, Brazil. "

The Book of Jin is one of the twenty-four histories of China, co-authored by, and others. In recorded history, from the early years of Sima Yi in the Three Kingdoms Period to the second year of the Eastern Jin Dynasty (420), Emperor Wu of Song abolished Jin and became the emperor.