There is an old saying called "three things are not enough", which means that the same thing should not be done three times in a row. If you do it three times in a row, you are likely to be in trouble or lose. This old saying should not be empty, but an experience or summary of people's life experience for a long time.
The number "three" is a reincarnation, the prosperity of the pole will decline, the third is the number of energy consumption. From a biogenetic point of view, no matter how heroic a person is, no matter how powerful and excellent genes he has, after three generations, he will be diluted almost. To verify the above point, let's analyze some ancient examples.
Qin Shi Huang destroyed the Six Kingdoms, unified the world, and established the Great Qin Empire, thinking that the country and mountains were eternally solid and could be passed down from generation to generation, but he did not expect that the Qin Dynasty had only existed for a short period of 15 years, and there were only three reigning emperors. Some people think that the Qin Dynasty's killing and tyranny have reached extremes, and it is strange that they will not perish.
It refers not only to national affairs, but also to personal family affairs. Wang Qi and his son Wang Ben were both famous generals of the Qin state, who made great achievements in the establishment of the Qin Dynasty, and his grandson Wang Li was a famous general of the Qin Dynasty, and Chen Sheng at the end of Qin was anti-Qin, and the imperial court sent Wang Li to attack the rebel army. People believe that after Wang Li was a famous general, he led a powerful Qin army and would definitely be able to defeat the rebel army. But one person said, "For the sake of the three generations will be defeated, because the ancestors will kill too much, and the descendants will suffer ominous and calamity." Now Wang Li is the third generation of the Wang family. Sure enough, Wang Li was defeated by Xiang Yu, and Wang Li was captured and surrendered.
In a dynasty, it is difficult to find emperors with great achievements in three generations of grandfathers and grandchildren at the same time. Liu Bang established the Western Han Dynasty, how heroic, but Liu Ying, who succeeded to the throne, was cowardly and fell into the hands of Lü Hou. Emperor Wen of Han and Emperor Jing of Han created a good situation of "rule of Wenjing", which laid the foundation for the country to flourish during the period of Emperor Wu of han. The most effective of this grandfather and grandson group was Emperor Wu of Han, and after Emperor Wu, the Western Han Dynasty began to decline, and there was no longer any shrewd and capable emperor.
Cao Cao was a great hero, his son Cao Pi was almost bored, and when he reached his grandson's generation, he was even more incompetent, and Jiangshan was eventually taken by the Sima family. Sima Yi, Sima Zhao, and Sima Yan's grandchildren worked together to establish the Jin Dynasty, and in the fourth generation, an idiot emperor, Emperor Hui of Jin, was born, hastening the demise of the Western Jin Dynasty.
Yang Jian of the Sui Dynasty was considered a good emperor, but in the hands of his son Emperor Sui, he stirred up the great rivers and mountains and wasted them. In the Tang Dynasty, Li Yuan and Li Shimin father and son built the Tang Dynasty, and in the hands of their grandson Li Zhi, the power was controlled by Wu Zetian, and later Wu Zetian simply changed the name of the country to Zhou and became the emperor himself.
Zhao Kuangyin and Zhao Guangyi of the Northern Song Dynasty successively became emperors, but the two of them were brothers and could only be counted as one generation, the third emperor Song Zhenzong and the fourth emperor Song Renzong were still emperors who had made a difference, and the later emperors were not as good as a generation.
Zhu Yuanzhang of the Ming Dynasty was originally a commoner at the bottom of society, but he rose step by step and finally ascended the throne as emperor. What is certain is how powerful his abilities are, and how good his genes are. But there were only two most outstanding emperors of the Ming Dynasty, one was Zhu Yuanzhang himself, and the other was his son Ming Chengzu Zhu Di.
At the beginning of the Qing Dynasty, there was a "Kangqian prosperous era", which included the joint efforts of three generations of emperors of grandfathers and grandsons. They were the three emperors of Kangxi, Yongzheng and Qianlong. After Qianlong, the Qing Dynasty did not have another emperor worthy of recognition.
In our daily lives, the number "three" often appears in a mysterious gesture. We have a saying here: When a person reaches thirty-six, he must take medicine even if he does not die. Twelve years is a period, three years is thirty-six years, people live to the age of thirty-six, probably some aspects of physiology have reached the limit, need to be adjusted.
There is a saying, "one drum blows, then declines, three exhausts", everything has its limits, three may be a cycle. Liu Beidu was three gu maolu, Zhuge Liang was still interested in not going out of the mountain?