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Self-centered individuals possessing a callous nature perform not treasure the feelings or needs of others. Their focus lies on their own wishes over all else, exhibiting a total lack of empathy. Such selfish people are do not understand the importance of generosity and selfless acts towards their fellow beings. Their only concern lies on fulfilling personal desires, never realizing the pain they inflict upon others.
Basically, selfish people are perpetuate a society lacking sympathy and kindness.