"This book designs to give a clear, accurate, and comprehensive picture of the mental life of the individual man; and also to explain this life as it appears in the light of all the resources of modern psychological science, and with the idea of "development" as essentially characteristic of this, as it is of all life, constantly kept in mind. While gratefully acknowledging my indebtedness to each of the large band of predecessors in this our common work--as well to those I have named as to the many more unnamed--I can truthfully acknowledge no special obligations to any individuals among this number. It will not require a wide acquaintance with psychological literature for the reader to discover that the points of view, the order of treatment, the discussion of the particular topics, are all independent and thoroughly the author's own. Indeed, it is my belief that there is not a page, and scarcely a line, of this treatise which does not show that all its material has been wrought anew into a distinct and characteristic organism of truth. Attention is particularly called, however, to the divisions of the book, which abandon even the appearance of retaining the old and vicious theory of faculties; to the consistent tenure of the view that the formation and development of faculty is itself the chief thing which scientific psychology has to explain; to the treatment, in particular, of the affective phenomena--the nature, classes, and tone as pleasure-pain, of the feelings, and the growth of the emotions and sentiments; to the theory of perception and of the nature and growth of knowledge which is advocated; to the discussions where psychology comes into critical contact with logic; and, above all, to the view taken of the moral sentiments and of the nature and evolution of will"--Preface. (PsycINFO Database Record (c) 2010 APA, all rights reserved).