Sibling relationships are often the longest of a person's life, yet parents sometimes treat conflict between siblings as a nuisance rather than a vital training ground. Confucius suggests that learning to live warmly with brothers and sisters is central to becoming a decent human being. This requires parents to insist on basic kindness between children—not suppressing all conflict, but ensuring that love is the baseline. When parents openly favor one child, or allow bullying to go unchecked, the sibling bond erodes. When they mediate with fairness and model affection between themselves, children absorb the art of living closely with someone who is different from them.