The kinds of personality described, as prototypes and variants and the fundamental facts supporting the view that they are the reaction types of the human beings we meet in everyday life, represent simply a beginning of the work to be done. Putting into our hands a new powerful searchlight that penetrates the interiors of body and soul, a fresh attitude toward the complicated problems of Man in society grows imminent. The normal and the abnormal become illuminated with an effect as if our retinas were suddenly to get sensitive to the ultraviolet rays to which we are now blind. An apparatus is put in our hands which shows us not only a static condition at a given moment, but the whole life process of an individual, normal or abnormal, his past and his future. Upon that fetich of the biologists, the struggle for existence, the struggle for survival, the struggle for possessions and satisfactions, for happiness, victory and virility, in short, for success, as success is measured by the biologists, a searching spectroscope can play, with a yield for our understanding and control of life, that will stand comparison with the astronomer's analysis of the stars. Toward the process of adjustment and adaptation, of the environment to the individual, as well as of the individual to the environment, attitudes will change from _hopeless acquiescence in the inevitable to a complete self-determination of the self and its surroundings._ The adventures of the personality, strung along as the episodes of his career, his friendships and sex reactions, his mishaps and diseases, and the final fate or fortune that overtakes him, be he normal, subnormal, supernormal, or abnormal, begin to become comprehensible, and hence controllable. CHAPTER XI SOME HISTORIC PERSONAGES THE INTERNAL SECRETIONS IN HISTORY According to the views, facts and guesses concerning human personality, as a body-mind complex dominated by the internal secretions, outlined in the preceding pages, biography, and human history as the interaction of biographies, become capable of interpretation from a new standpoint. If human life, in its essentials, is so much the product of the internal messenger system we speak of as the endocrines, then biography should present us with a number of illustrations of their power and influence. What is the evidence that, as Huxley anticipated, "the introduction into the economy of a molecular mechanism which, like a cunningly contrived torpedo, shall find its way to some particular group of living elements, and cause an explosion among them, leaving the rest untouched," and the multiplication of such cunningly contrived mechanisms, were responsible for those personalities, magnificent chemical compounds, with whose adventures historians are concerned? THE CASE OF NAPOLEON