Souls bigger than sour apples

"If we are so contemptibly selfish that we can't radiate a little happiness and pass on a bit of honest appreciation without trying to get something out of the other person in return - if our souls are no bigger than sour crab apples, we shall meet with the failure we so richly deserve. Oh yes, I did want something out of that chap. I wanted something priceless. And I got it. I got the feeling that I had done something for him without his being able to do anything whatever in return for me. That is a feeling that flows and sings in your memory lung after the incident is past."

"How to win friends and influence people" by Carnegie