This preface, though placed at the beginning, as a preface must be, should be read at the end of the book. I have received a large amount of correspondence concerning this small work, and many reviews of it--some of them nearly as long as the book itself--have been printed. But scarcely any of the comment has been adverse. Some people have objected to a frivolity of tone; but as the tone is not, in my opinion, at all frivolous, this objection did not impress me; and had no weightier reproach been put forward I might almost have been persuaded that the volume was flawless! A more serious stricture has, however, been offered--not in the press, but by sundry obviously sincere correspondents…
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