If I succeed in accomplishing my purpose even in part my time has been well spent. We have an unchallenged fact to rest our feet on, a fact that shall follow us through all the pages of this book; and that is: our thoughts NEVER stop, our brains never sleep. While we live we shall never get away from our thought; so then, we must consider that thought current, and reckon with it. The motive power is turned on and we must grasp the helm if we sail the sea of life successfully, baffling storms and avoiding rocks. Scientific books are usually dry, uninviting reading; they lack the human interest. They are generally bloodless skeletons. We shall try to weave science into new patterns and paint interesting pictures so that science will attract and not repel. This book is different in its suggestions, in its prescriptions, in its language, but it is universal with all scientific books, in that its aim is helpful truth. We go by different routes, but our objective point is the same. We will avoid technical names and symbols and speak the common language that the multitude understands. We shall deal with problems and aspirations that come to us all in this busy workaday world. We shall try to cut the underbrush in the swamp and blaze a plain trail out on to the big high road. We shall keep in step to the drum-beats of truth, we will rest and recreate in cool shady places, and then up and on to our purpose with smiles on our faces, courage in our hearts, and song on our lips. Every moment of our journey shall be worth while and positively helpful if we take the trip with conscientious applications, and continuity of purpose. Our path is strewn with roses and thorns; we must enjoy the roses and escape the thorns. We welcome you, the neophyte, who has joined us in our pilgrimage. PERSONAL Are YOU Pleasant to Live With? Let's be personal; that's a good way to establish a good idea in place of a bad one. Are YOU pleasant to live with? Keep this personal question before you, even if you are cocksure that you can answer, yes. Maybe there are some little jars, rattles, gratings, you are not aware of. Few of us are honest when looking for our own faults. There may be some sand in your gear box. It won't hurt you to keep the personal question alive for a few days,--"Am I pleasant to live with?" I love the pleasant people whether they are fat, lean, tall, short, red heads, brown heads, homely, handsome, republicans or democrats. The complaining, unpleasant grouch is like a bear with a toothache, miserable himself and spreading misery all around. A freckle-faced, red-headed, cross-eyed man with a healthy funny bone will spread more cheerfulness and sunshine than a bench full of sad and solemn justices of the supreme court, or a religious conference. What a different story would be written of Job, if he had only possessed a servant who could dance a double shuffle and whistle "Dixie" while cooking breakfast.