Is the Book of Changes a feudal dross or a cultural treasure?

Between people, between people and things, we need just the right harmony, the most appropriate harmony, in order to get real benefits. If I am good, you will not benefit, or even hurt you. If you gain something, it will definitely hurt him. This damage to another person's interests is not the purpose of interests, nor is it the definition of interests; The advantages here are two advantages, both of which are mutually beneficial, which is enough.