"To study single departments of man's complicated nature--as his anatomy, or physiology, or phrenology--separately, furnishes a partial and often erroneous view of it as a whole. To obtain anything like a complete knowledge of him requires that his constitution be studied in its COLLECTIVE capacity. He must be known not by sections, but as a UNIT; for in no other way can the reciprocal bearings and complex inter-relations of the multifarious laws of his being be understood. As our subject is naturally subdivided into three departments, it has been divided into three volumes--the first, devoted to the preservation and restoration of of health, the inter-relations of body and mind, and the improvement of the mentality by improving the physiology; the second, to the regulation of the feelings and perfection of the moral character; and the third, to intellectual cultivation. A system of numbering the paragraphs or heads of the subjects treated, and a reference to them in the text by raised figures, called superiors, renders a reference from each to all perfectly easy and expeditious, so that, after a point has been once presented, it can be referred to specifically, without circumlocution, or repetition, or disfiguring the page. Yet each volume, being complete in itself, can be read separately"--Preface. (PsycINFO Database Record (c) 2005 APA, all rights reserved).
To teach learners these organic conditions which indicate character, is the first object of this manual. And to render it accessible to all, it condenses facts and conditions, rather than elaborates arguments, - because to expound Phrenology is its highest proof, - states laws and results, and leaves them upon their naked merits; embodies recent discoveries, and crowds into the fewest words and pages just what learners most need to know, and hence requires to be studied rather than merely read. To record character is its second object.