1, suddenly throw the frog into the oil pan, and the frog can jump out and escape from the trap. But it felt so comfortable in the rising water pot that it realized the danger was coming, but it was weak and was finally buried at the bottom of the pot. 2. "Born in sorrow" is an eternal famous saying, which is best illustrated by the story of Gou Jian, the king of Yue in the Spring and Autumn Period. Gou Jian succumbed to peace, served Wu servingly and tasted courage. Finally, from weak to strong, rise up and destroy Wu, becoming a generation of hegemons. How can Gou Jian restore the country? This was the result of the humiliation of national subjugation, which prompted him to rise. 3. King Chuang broke into Beijing, thinking that he was accomplished. The new bureaucrats lost all their courage in the uprising and just wanted to enjoy happiness in Beijing. When the Qing soldiers entered the pass, the Ming army made a comeback and the rebels were defeated. People can keep their eyes open when they are in danger, so they can save the day; In ease and enjoyment, the will fades and the spirit is gone, resulting in complete failure. This is precisely the performance of being born of hardship.