Confucius has seen people who catch birds with nets. All he catches are chickens. Confucius asked him, "Only big birds can't be caught. Why? " The bird catcher said, "big birds are easily frightened, so it is difficult to catch them." Young birds are greedy, so they are easy to catch. " If the little sparrow follows the big sparrow, it can't be caught; But if the big sparrow follows the small sparrow, it can also be caught. Confucius said to his disciples, "A big bird that is easily frightened can stay away from disaster, while a chicken that likes to overeat easily forgets disaster.". This is their in our nature, and following different birds is the reason for their misfortune. Therefore, gentlemen should carefully choose the people they follow, save their lives with the help of the thoughtful consideration of the elderly, and imitate the stupidity and recklessness of young people, which will lead to dangerous death. "

This is an opportunity for Confucius to educate students, telling them to listen to their teachers with an open mind and learn from them with an open mind.