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There's a significant principle in conducting oneself in society, that is, to be kind to others and try not to harm them.
Beautiful things attract each other, just as ugly things do.
The structure of society is very complex, leading to both rewards for good deeds and punishments for bad deeds being delayed.
But that doesn't mean the rewards won't come, or the punishments won't happen.
Those who want to improve their life circumstances must be kind to others. For example, those who originally lived in adversity and lacked hope for the future can gradually find ways to happiness through kindness.
Being malicious towards others leads to excessive social pressure, making it very difficult to do anything.
The direction of societal development is similar; generation by generation, people become more tolerant unintentionally, so those who are kind to others own the future, while those who are malicious get gradually eliminated by society.