1. In the Analects of Confucius, "people can't bear to worry about things and will not change their happiness" means that Yan Hui still does not change the joy of Tao when others can't bear things.
2. Source: The Analects of Confucius · Yongya No. 6
The original text of the sentence "People can't bear to worry about things, but they can't change their happiness" is: Confucius said: "What a good man can do! A simple bowl of food, a gourd of drink, and in the mean lane, people can't afford to worry about things, but they can't change their happiness. A good man can do it!"
Confucius said, "Virtuous, Yan Hui eats a small basket of rice and drinks a ladle of water. Living in a poor little house, no one can stand this poverty, but Yan Hui still does not change his pleasure of pursuing the Tao. Virtuous, Yan Hui!" The main point was to praise Yan Hui for finding infinite pleasure in life no matter how unbearable the environment is.
In a simple and poor living environment, ordinary people will complain, will not be willing to, and will not complain in time and enjoy themselves like Yan Hui. This sentence also tells us that we should learn to find happiness in life. No matter how hard life is, happiness is very important.