Can you chang a person?

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When I was very young and free and my imagination had no limits, I found so many evil phenomina that I made up my mind to study hard and try to change the society. But as I grew older, I discovered the society would not change. So I shortened my sights somewhat and decided to change only my family and relatives. But it seemed immovable too. After I married, I found so many shortcomings on my husband. So in one last desperate attempt, I settled for changing him, who was the closest to me. But alas, he had none of it. --- I failed. But now, gradually, I realized that there is none who you can change except you and that once you are able to change yourself, maybe you can affect people around you and from their inspiration and encouragement, maybe I can better the whole society. Do you agree? Is there anyone you can change? If any, please tell me your method.