What are the main feudal ethics?

Both the so-called Three Principles and Five Constants, Three from Four Virtues Three Principles and Five Constants: Three Principles: refers to the principle of the ruler as a minister, the principle of the father as a son, and the principle of the husband as a wife; and Five Constants: refers to benevolence, righteousness, etiquette, wisdom, and faith. The moral norms between people advocated by feudal rites. In traditional Chinese ritualism, the requirements for women are relatively harsh, in which the so-called "three from", "four virtues" is the basis for women to establish themselves, so what is the "three from", What are the "Three Obediences" and "Four Virtues"? The so-called "three from" refers to: unmarried from the father, married from the husband, husband died from the son. It means that before a girl gets married, she should listen to her parents' teachings and should not refute the elders' instructions, because the elders are rich in social insights and have fundamental guiding significance; after she gets married, she should be courteous and obedient to her husband, and should work together with her husband to keep the house, honor the elders, and educate the young; and if her husband unfortunately passes away before her, she should hold on to her own duties, try to support the children to grow up to adulthood, and respect the life concepts of her own children. The concept of life is to respect one's own children's ideas. The word "follow" here does not mean "to follow" on the surface, but rather "to engage" in the nature of work. The so-called four virtues refer to: virtue, appearance, speech, and work, which means that the first thing to do for a woman is to be of good character, to be able to set up a proper foundation; and then there is appearance (which means to be dignified, steady, and courteous when entering a house, and not to be frivolous and casual), speech (which means to be able to talk to people in a casual manner with a sense of meaning, and to be able to understand the words spoken by other people, and to know what you should say and what you shouldn't), and the way of ruling the family (which includes teaching children to their husbands, honoring the elderly and loving the young, and being industrious and thrifty in the details of life). (the details of life).