It costs nothing, but creates much.
It enriches those who receive, without impoverishing those who give. It happens in a flash and the memory of it sometimes lasts forever.
None are so rich that they get along without it, and none so poor but are richer for its benefits.
It creates happiness in the home, fosters goodwill in a business, and is the countersign of friends.
It is rest to the weary, daylight to the discouraged, sunshine to the sad, and Nature’s best antidote for trouble.
Yet it cannot be bought, begged, borrowed, or stolen, for it is something that is no earthly good to anybody till it is given away.
If during the course of my day I should be too tired to give you a smile, may I ask that you leave one of yours.
For nobody needs a smile so much as one who has none left to give.
(Copied and adapted from “How to win friends and influence people” by Dale Carnegie.)