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 they can 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 anyone 'til it is given away. And if in the hurly-burly bustle of today's business world, some of the people you meet should be too tired to give you a smile, may we ask you to leave one of yours?
For nobody needs a smile so much as those who have none left to give...