Be born in sorrow and die in happiness, which means that you can survive by sorrow but you will perish by being addicted to happiness! There are many such people in our Chinese history

Born out of sorrow: Li Shimin worked diligently in political affairs throughout his life, so the Tang Dynasty prospered; King Zhou of the Shang Dynasty lived in wine pools and meat forests and ignored government affairs, so The late Shang Dynasty rapidly declined! (You can expand the topic, such as how Li Shimin was diligent in political affairs, and how King Zhou was addicted to beauty) The teacher told us that Gou Jian, the king of Yue, is a good example. He perished because of peace and happiness in the early stage, and then he worked hard and tasted courage. He made a comeback, but in the later period he indulged in happiness again and perished. This is a perfect example.