During these forty-five years of quest of happiness there were constantly appearing above the horizon of my search flashes of hope, leading in new directions, which proved in turn to be but will o' the wisps, until the night--the morning--of my awakening, as related in my book "Menticulture." It was then, for the first time, I heard that it was possible to _get rid_ of anger and worry, the _bêtes noires_ of my existence, which were, as I then believed and as I now know, the dreaded barriers between me and perfect happiness; not because the mere removal of these particular deterrents to happiness will accomplish happiness, but because the certain result of the removal of any principal mental obstructions leads to the disappearance of contingent errors, and permits freedom of growth of the elements of true happiness. * * * * * It is proper to state here the definition of happiness which is the result of my progressive quest. There is only one quality of true happiness, as there can only be one kind of quarantine, and the former is dependent on the latter. If both are not _perfect_, both fail. True happiness is _the evidence and fruit of conscious usefulness, and quarantine against obstructions to normal altruistic energy is the best means of attaining happiness_. In view of the establishment of the status of the Man unit in the Nature-Man partnership, the above definition and assertion may be extended to declare that there can be no genuine happiness short of _usefulness in assisting other units to be strong and useful in the partnership of which each is a member_. True happiness cannot exist if there is present an element of indifference. Next to destructive aggression, indifference, which leads to neglect and waste, is the worst fault that a member of the Nature-Man partnership can be guilty of. Neglect _nothing_ that will aid growth in any useful form, and happiness will surely follow, for Nature and the God of Nature will "do the rest." * * * * * In qualifying for the Nature-Man partnership, it is of first importance that our personal equipment should be understood and cared for so as to give us the greatest strength. The body may appropriately be likened to an electric power plant--a Mind-Power Plant; the body being the engine, the stomach the furnace, the arteries and veins the boiler tubes, the blood in circulation the steam, the brain the dynamo, and the mind electricity. Mind is the all-important factor of our equipment, for it is the commander that will lead and direct better and wiser than we can now imagine if we allow it a chance to act with freedom.