A smile costs nothing, but gives much. It enriches those who receive, without making poorer those who give. It takes but a moment, but the memory of it sometimes lasts forever.
None is so rich that they can get along without it, and none is so poor but that they can be made rich by it. A smile creates happiness in the home, fosters good will in business, and is the countersign of friendship. It brings rest to the weary, cheer to the discouraged and it is nature's best antidote for trouble.
Yet it can not be bought, begged, borrowed or stolen, for a smile is of no value to anyone until it is given away. Some people are too tired to give you a smile. But give them one of yours, as none needs a smile so much as one who has no more to give.