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This life is such that what goes around, comes around. In other words, the good we do comes back to us in one way or another, either now or in the future.
If you want to be respected, respect others! If you want to be helped in times of need, help the people in need! If you want to be loved, love others !
Even the GOLDEN RULE says "do to others what you want them to do to you!".
Treat people nicely and you won't regret it!