It costs nothing, but creates much.
It enriches those who receive, without impoverishing those who give.
It happens in a flasht, but the memory of it sometimes lasts forever.
None are so rich that they can get along without it, and none so poor,
but are richer for it’s benefits.
it creates happiness in the home, fosters good will in business, and is the countersign of friendship.
It is rest to the weary, daylight to the discouraged, sunshine to the sad,
and it is nature’s best antidote for trouble.
Yet it cannot be bought, begged, borrowed, or stolen, for it is something that is of no earthly good to anyone, until it is given away.
Some people are too tired to give you a smile.
Give them one of yours, as none needs a smile so much as those who have none left to give.
"How To Win Friends and Influence People", Carnegie D (1990), Pocket Publishing.