Born in sorrow and died in happiness, there is an interesting and thought-provoking experiment. When a frog is thrown into a hot oil pan, it can unexpectedly jump out and escape from the trap. Then, he put the same frog into a gradually heated pitcher. This time, he felt too comfortable and realized that danger was coming, but he was very weak and finally died at the bottom of the pot. It can be seen from this experiment that frogs are very sensitive to the immediate danger and slow to respond to the danger that has not yet arrived. From this, I thought of people. In fact, people are also like this in this respect. As Mencius said, "Born in sorrow, died in happiness." In the journey of life, adversity reminds people and inspires them to forge ahead, while comfortable and superior environment kills people's will, makes people indulge in happiness and enjoy ease, and often achieves nothing. Some people even indulge in debauchery and self-destruction when they are at ease. This is similar to the frog jumping up in the face of disaster and lying in warm water waiting for death. "Born in sorrow" is an eternal famous saying, and the story of Gou Jian, the king of Yue in the Spring and Autumn Period, is its best registration. At that time, Gou Jian succumbed to peace, served Wu servingly and tasted courage. After "ten years of reunion and ten years of training", he finally turned from weak to strong, rose up and destroyed the State of Wu, becoming the overlord of a generation. How can Gou Jian restore the country? This is the result of the humiliation of national subjugation, which makes him angry and urges him to rise. This shows that people often show extraordinary perseverance, exert their unexpected potential, fight to the death and open up a chance to live in no way back. However, people often don't grasp it well and "die comfortably" by letting go of an open hand and being comfortable. An example of this is the broken king. /kloc-in the spring of 0/644, King Chuang broke into Beijing, thinking that the world was settled and you were finished. The peasant-born new bureaucrat lost all-powerful spirit in the uprising, and just wanted to enjoy the Chinese New Year every day in Beijing. Li Zicheng wanted to be the emperor as soon as possible, Niu Jinxing wanted to be the Taiping Prime Minister, and the generals wanted to build a government. When the Qing soldiers entered the pass, the Ming army made a comeback and the rebels were defeated. This reminds me of an old saying of Ouyang Xiu, "Worry and fatigue can rejuvenate the country, and leisure can die". People can keep their eyes open when they are in danger, so they can save the day; However, in the enjoyment of ease, the will fades and the spirit disappears, resulting in complete failure.