A 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 CarnegieOne of the most appalling comments on our present way of life is that at one time half of all the beds in our hospitals were reserved for patients with nervous and mental troubles, patients who had collapsed under the crushing burden of accumulated yesterdays and fearful tomorrows. Yet a vast majority of those people would be walking the streets today, leading happy, useful lives — if they had only heeded the words of Jesus: “Have no anxiety about the morrow”; or the words of Sir William Osler: "Live in day-tight compartments."
Dale CarnegieWhen we hate our enemies, we are giving them power over us: power over our sleep, our appetites, our blood pressure, our health and our happiness. Our enemies would dance with joy if only they knew how they were worrying us, lacerating us, and getting even with us! Our hate is not hurting them at al, but our hate is turning our days and nights into a hellish turmoil.
Dale CarnegieThe very best way in all the world to overcome self-consciousn ess and shyness is to get interested in other people and to think of them and, almost miraculously, your timidity will pass. Do something for other people. Practice deeds of kindness, acts of friendliness, and you'll be surprised to see what happens.
Dale Carnegie