I think something that everyone should start doing for others for at least once in their life, is to help someone without the need of wanting anything back in return, because life as I know it revolves around and for what you give to to others, you do or will get something in return. It may not come around an hour after, it may not come a day after, but it surely will come back to you eventually. Doing a good deed can makes a person want to the do same for others and if everyone would start doing this for others, the world would be a better place to live in.
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How about you ?