Special weather training

From The Analects of Confucius Zi Han, the general idea is that the pine and cypress finally withered until the weather became cold. More than 200 million years ago, cold made most plants extinct, but they produced cold-resistant conifers and cypresses. More than 2,000 years ago, the war caused the decline of the Zhou Dynasty, and Confucius lamented that "when the cold comes and the summer goes, you will know that the pine and cypress will wither". Pines and cypresses stand proudly in the cold, just like people who maintain lofty dignity and integrity in troubled times and adversity! Therefore, the ancients called Song, Zhu and Li "three friends of the old cold" and praised their enduring quality in winter, that is, praised those who persevered, adhered to the truth and guarded justice.