The purpose of learning is to increase knowledge and understanding of social nature. In traditional culture, there are good and bad. In learning, we should think and identify, think independently and be responsible for ourselves. You are the subject of thinking, the subject of life, for your own use and digestion, not for your own use. Only in this way can you do things well, have your own life, feel that you are yourself, and learn from past dynasties to fight against foreign martyrs. Filial piety cannot be blind. Blind filial piety is not filial piety, but sin Think that filial piety is the real filial piety.