Man is the maker of happiness and misery. Further, he is the creator and perpetuator of his own happiness and misery. These things are not externally imposed; they are internal conditions. Their cause is neither deity, nor devil, nor circumstance, but Thought. They are the effects of deeds, and deeds are the visible side of thoughts. Fixed attitudes of mind determine courses of conduct, and from courses of conduct come those reactions called happiness and unhappiness. This being so, it follows that, to alter the reactive condition, one must alter the active thought. To exchange misery for happiness it is necessary to reverse the fixed attitude of mind and habitual course of conduct which is the cause of misery, and the reversed effect will appear in the mind and life. A man has no power to be happy while thinking and acting selfishly; he cannot be unhappy while thinking and acting unselfishly. Wheresoever the cause is, there the effect will appear. Man cannot abrogate effects, but he can alter causes. He can purify his nature; he can remould his character. There is great power in self-conquest; there is great joy in transforming oneself. Each man is circumscribed by his own thoughts, but he can gradually extend their circle; he can enlarge and elevate his mental sphere. He can leave the low, and reach up to the high; he can refrain from harbouring thoughts that are dark and hateful, and can cherish thoughts that are bright and beautiful; and as he does his, he will pass into a higher sphere of power and beauty, will become conscious of a more complete and perfect world.