If we are so contemptibly selfish that we can’t radiate a little happiness and pass on a bit of honest appreciation without trying to screw something out of the other person in return—if our souls are no bigger than sour crab apples, we shall meet with the failure we so richly deserve.
Dale Carnegiecriticism is dangerous, because it wounds a person's precious pride, hurt his sense of importace and arouse resentment.
Dale CarnegieDid you ever see an unhappy horse? Did you ever see bird that had the blues? One reason why birds and horses are not unhappy is because they are not trying to impress other birds and horses.
Dale Carnegie