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If you quarrel with others, it will leave scar. You can stick a knife in his/her back and pulling it back, but will leave scar. No matter how many times you apologize or regret, still wound is still there.
Friends are rare jewels. They make you laugh and give you encouragement. They're willing to listen if that's what you need. they support and open up your hurt.
      Show to your friends ! How you like them very much !! =)