Ideological education, the core of family education-service, unity of knowing and doing, unity of knowing and doing. Doing one thing for a long time is the unity of knowledge and action. Only what the heart wants to do, not what the mind wants to do, conforms to heaven. The longer a family educator is, the more powerful he becomes, which is equivalent to an old Chinese doctor. Family education has a healing effect. It is only knowledge that is always used to educate others. The knowledge learned can only be turned into wisdom if it is done, and it can only be realized from little things.