This story is derived from as human a document as ever existed; and, because of its uncommon nature, perhaps no one thing contributes so much to its value as its authenticity. It is an autobiography, and more: in part it is a biography; for, in telling the story of my life, I must relate the history of another self--a self which was dominant from my twenty-fourth to my twenty-sixth year. During that period I was unlike what I had been, or what I have been since. The biographical part of my autobiography might be called the history of a mental civil war, which I fought single-handed on a battlefield that lay within the compass of my skull. An Army of Unreason, composed of the cunning and treacherous thoughts of an unfair foe, attacked my bewildered consciousness with cruel persistency, and would have destroyed me, had not a triumphant Reason finally interposed a superior strategy that saved me from my unnatural self.
I am not telling the story of my life just to write a book.