It’s self-reliance. "You sweat your own sweat, eat your own food, and do your own things! If you rely on heaven, earth, and ancestors, you are not considered a hero!" Zheng Banqiao had a son in his later years. He loved his son very much, but never doted on him. When he was critically ill, he called his son to his bedside and said he wanted to eat the steamed buns made by his son. My son didn’t know how to make steamed buns, so he had to ask the chef for help. Banqiao made it clear that only his son was allowed to do it himself, and the chef could never do it for him. My son learned how to knead and roll noodles, and he worked hard to make steamed buns. After the steamed buns were steamed, he happily sent them to his father's bedside. At this time, Zheng Banqiao had already passed away. The son was crying and kneeling beside the bed. Suddenly he found a piece of paper on the coffee table. He picked it up and looked at it. It read: "Sweat your own sweat, eat your own food, do your own thing! Rely on the sky and the earth." , Relying on your ancestors is not a good man!" Only then did the son understand that his father's purpose in asking him to make steamed buns with his own hands before his death was to teach him to be self-reliant and not to rely on others or his ancestral business.