A smile costs nothing, but creates much. It happens in a flash, but the memory sometimes lasts forever. It cannot be bought, begged, borrowed, or stolen, but it is something that is of no earthly good to anyone unless it is given away. So, if in your hurry and rush you meet someone who is too weary to give you a smile, leave one of yours. No one needs a smile quite as much as person who has none left to give.