Quite corny, but always ends as pure true. Doing good to others is doing good to yourself.
Got to confess, I did not hold this opinion for all of my life. I sometimes fall into the evil trap, I sometimes do not believe there is good; however, when I eventually go through challenges, I am a better person, and so you are.

You are a better person, because you did good – you helped someone. So in fact you improved a bad situation. Most of the good people do not even know they incredibly helped someone, watch St. Vincent and judge for yourself…

The movie deals with “A young boy whose parents have just divorced finds an unlikely friend and mentor in the misanthropic, bawdy, hedonistic war veteran who lives next door.”

I am sure he did not plan to be that positively influential, but so you are when you are doing without planning. You never know how much and why you influence someone’s life.

So next time you are somewhere, try to do good to others intentionally, be aware of your unlimited opportunities to sprinkle good and positive around you. Help someone on the road (even when giving them the option to change a lane safely), on the supermarket (you may entertain a kid when his parent is trying to pack, push, put, pay, etc.), you may even consider raise your hand and ask why if you think your company will do harm to the environment.

Just do good, it pays. It pays because it makes you a better person; and when you do good intentionally, you will do it also unintentionally (-: