Remember happiness doesn't depend upon who you are or what you have; it depends solely on what you think.
Dale CarnegieIf you can't sleep, then get up and do something instead of lying there worrying. It's the worry that gets you, not the lack of sleep.
Dale CarnegieA smile is nature's best antidote for discouragement. It brings rest to the weary, sunshine to those who are frowning, and hope to those who are hopeless and defeated. A smile is so valuable that it can't be bought, begged, borrowed, or taken away against your will. You have to be willing to give a smile away before it can do anyone else any good. So if someone is too tired or grumpy to flash you a smile, let him have one of yours anyway. Nobody needs a smile as much as the person who has none to give.
Dale Carnegie