Remember happiness doesn't depend upon who you are or what you have; it depends solely on what you think.
Dale CarnegieBy all means take thought for the tomorrow, yes, careful thought and planning and preparation. But have no anxiety.
Dale CarnegieForget yourself by becoming interested in others. Do every day a good deed that will put a smile of joy on someone's face.
Dale CarnegieI want you to think of your life as an hourglass. You know there are thousands of grains of sand in the top of the hourglass; and they all pass slowly and evenly through the narrow neck in the middle. Nothing you or I could do would make more than one grain of sand pass through this narrow neck without impairing the hourglass. You and I and everyone else are like this hourglass.
Dale Carnegie