When we care for people, we invest in them. We plant seeds of good deeds and the return always comes back in the form of love and kindness. Caring never goes to waste. When we use our positive qualities in a worthwhile way then those qualities too will come back to us from other people. It works just like a boomerang. If we show that care for others, then that care and respect will get reflected back to us too. Of course this also applies equally to that which is positive or negative! So it pays to be positive.