In the volume before us we have the first two books of what was to be Nietzsche's greatest theoretical and philosophical prose work. The reception given to Thus Spake Zarathustra had been so unsatisfactory, and misunderstandings relative to its teaching had become so general, that, within a year of the publication of the first part of that famous philosophical poem, Nietzsche was already beginning to see the necessity of bringing his doctrines before the public in a more definite and unmistakable form. When those who were responsible for its publication undertook the task of preparing it for the press, it was very little more than a vast collection of notes and rough drafts, set down by Nietzsche from time to time, as the material for his chief work; and, as any liberty taken with the original manuscript, save that of putting it in order, would probably have resulted in adding or excluding what the author would on no account have added or excluded himself, it follows that in some few cases the paragraphs are no more than hasty memoranda of passing thoughts, which Nietzsche must have had the intention of elaborating at some future time. In these cases the translation follows the German as closely as possible, and the free use even of a conjunction has in certain cases been avoided, for fear lest the meaning might be in the slightest degree modified. It were well, therefore, if the reader could bear these facts in mind whenever he is struck by a certain clumsiness, either of expression or disposition, in the course of reading this translation.