"The soul-consuming and friction-wearing tendency of this hurrying, grasping, competing age is the excuse for this booklet. Is it not an absolute necessity to get rid of all irritants, of everything which worries and frets, and which brings discord into so many lives? Cheerfulness has a wonderful lubricating power. It lengthens the life of human machinery, as lubricants lengthen the life of inert machinery. Life's delicate bearings should not be carelessly ground away for mere lack of oil. What is needed is a habit of cheerfulness, to enjoy every day as we go along; not to fret and stew all the week, and then expect to make up for it Sunday or on some holiday..."
