The three generations of grandparents refer to the child and the child’s grandparents, grandparents, father and mother.

Collateral blood relatives within three generations is a concept relative to direct blood relatives. It refers to relatives who are within three generations of the same blood as oneself. Direct blood relatives are relatives with direct blood relationships, that is, relatives of all generations above and below who gave birth to themselves and their children, including father and mother, such as parents and children, grandparents and grandchildren, maternal grandparents and maternal grandchildren, etc.

Collateral blood relatives are relatives with indirect blood relationships, that is, relatives who are not direct blood relatives but have the same blood source as themselves. Collateral blood relatives within three generations are relatives who are within three generations of the same blood as oneself. The three generations here are the three generations counted as one generation starting from oneself.

Quotes about filial piety

1. A filial son should not let his relatives have a cold heart, a troubled heart, a fearful heart, a depressed heart, a hard-to-speak heart, or a guilty heart. —Yuan Cai

2. In this world, we always need to repay the most beautiful person, which is mother. — Ostrovsky

3. We love our parents almost unconsciously, because this kind of love is as natural as human life and can only be seen at the final moment of separation. How deep are the roots of this feeling. - Maupassant

4. Not daring to damage the body, hair, and skin of parents, is the beginning of filial piety. It is the end of filial piety to establish oneself and practice morality, and to be famous in future generations to show off one's parents. - Confucius

5. A filial son does not flatter his relatives, and a loyal minister does not flatter his king. This is the prosperity of ministers. —Zhuangzi