When the elements of the human character are observed in any individual, there will be perceived a number—sometimes more and sometimes less—of intervening, interrupting, interpolating, constitutional characteristics that, abstractly, are not really necessary to the completeness of human nature. And these characteristics, while non-essential, may nevertheless be, so far as the individual is concerned, dominant and decisive in the aggregate and sum total of life's history.
Such peculiarities in the elements of personality indicate imperfections in the constitutional stamina of separate and distinct persons. In some cases they have been impressed upon the individual by ancestry—pointing to a history of disease, or of profound physical injury, or of mental and moral suffering, or inquietude, or disaster. But whatever these lines in men's characters may be, or whence they come, or what they signify and portend—they are present in a state, to some degree obvious to the expert eye, in every