The Historian of Greece, when closing his great narrative in the year 1856, promised to follow out in a separate work that speculative movement of the fourth century B.C. which upheld the supremacy of the Hellenic intellect long after the decline of Hellenic liberty. He had traced the beginnings of the movement in the famous chapter on Sokrates, but to do justice to its chief heroes — Plato and Aristotle — proved to be impossible within the limits of the History. When, however, the promised work appeared, after nine laborious years, it was found to compass only Plato and the other immediate companions of Sokrates, leaving a full half of the appointed task unperformed. Mr. Grote had already passed his 70th year, but saw in this only a reason for turning, without a moment’s pause, to the arduous labour still before him. Thenceforth, in spite of failing strength and the increasing distraction of public business, he held steadily on till death overtook him in the middle of the course. What he was able to accomplish, though not what study he had gone through towards the remainder of his design, these volumes will show. The office of preparing and superintending their publication was entrusted to the present editors by Mrs. Grote, in the exercise of her discretion as sole executrix under his last Will. As now printed, the work has its form determined by the author himself up to the end of Chapter XI. The first two chapters, containing a biography of Aristotle and a general account of his works, are followed by a critical analysis, in eight chapters, of all the treatises included under the title ‘Organon;’ and in the remaining chapter of the eleven the handling of the Physica and Metaphysica (taken together for the reasons given) is begun. What now stand as Chapters III., IV., &c., were marked, however, as Chapters VI., VII., &c., by the author; his design evidently being to interpolate before publication three other chapters of an introductory cast. Unfortunately no positive indication remains as to the subject of these; although there is reason to believe that, for one thing, he intended to prefix to the detailed consideration of the works a key to Aristotle’s perplexing terminology. Possibly also he designed to enter upon a more particular discussion of the Canon, after having viewed it externally in Chapter II.; citations and references bearing on such a discussion being found among his loose notes.

What might have been the course of the work from the point where it is broken off, is altogether matter of inference, beyond an indication of the subject of the chapter next to follow; but the remarks at the beginning of Chapter III. point to some likely conclusions. After the metaphysical discussions, which must have been prolonged through several chapters, there would probably have been taken in order the treatises De Coelo, De Generatione et Corruptione, the Meteorologica, and next the various Biological works; though with what detail in each case it is impossible to guess. Then must have followed the De Anim with the minor Psychological treatises summed up as Parva Naturalia, and next, without doubt, the Ethica and Politica; last of all, the Rhetorica and Poetica. That Mr. Grote had carefully mastered all these works is evident from his marginal annotations in the various copies which he read. With the Ethica and Politica in particular he had early been familiar, and most there is reason to regret that he has left nothing worked out upon this field so specially his own.1 Fortunately it happens that on the psychological field next adjoining there is something considerable to show.

In the autumn of 1867 Mr. Grote undertook to write a short account of Aristotle’s striking recognition of the physical aspect of mental phenomena, to be appended to the third edition of the senior editor’s work, ‘The Senses and the Intellect;’ but, on following out the indications relative to that point, he was gradually led by his interest in the subject to elaborate a full abstract of the De Anim and the other psychological treatises. Several months were spent on this task, and at the end he declared that it had greatly deepened his insight into Aristotle’s philosophy as a whole. He also expressed his satisfaction at having thus completed an exposition of the Psychology, fitted to stand as his contribution to that part of Aristotle, in case he should never reach the subject in the regular course of his general work. The exposition was printed in full at the time (1868), and drew the attention of students. It is now reprinted, with the prominence due to its literary finish and intrinsic value, as a chapter — the last — in the body of the present work.

The long Appendix coming after is composed of elements somewhat heterogeneous; but the different sections were all written in the period since 1865, and all, not excepting the last two (treating briefly of Epikurus and the Stoics), have a bearing upon the author’s general design.

The first section — an historical account of ancient theories of Universals — has already seen the light.2 It brings together, as nowhere else, all the chief references to the doctrine of Realism in Plato, and exhibits the directly antagonistic position taken up by Aristotle towards his master. This it does so impressively that there could be no question of excluding it, even although it reproduces in part some of the matter of Chapter III., on the Categories. Being composed, in 1867, later than this Chapter, it is on that account written with all the firmer a grasp. On finishing it as it stands, Mr. Grote, in a private letter, expressed himself in terms that deserve to be quoted: — “I never saw before so clearly the extreme importance of Aristotle’s speculations as the guides and stimulants of mediÆval philosophy. If I had time to carry the account further, I should have been able to show how much the improved views of the question of Universals depended on the fact that more and more of the works of Aristotle, and better texts, became known to Albertus Magnus, Thomas Aquinas, and their successors. During the centuries immediately succeeding BoËthius, nothing of Aristotle except the Categories and the treatise De Interpretatione was known, and these in a Latin translation. Most fortunately the Categories was never put out of sight; and it is there that the doctrine of Substantia Prima stands clearly proclaimed.”

The second section, or, rather, the part therein treating of Aristotle’s doctrine of First Principles, is also a reprint. It was composed (in 1867) at the same time as the section on Universals, and was printed along with that; shorn, however, of the critical examination of Sir William Hamilton’s views on Aristotle, which is now prefixed to the statement of the Aristotelian doctrine. Hamilton having (in Note A, appended to his edition of Reid’s Works) claimed Aristotle as a supporter of the Philosophy of Common Sense, basing upon a long list of passages quoted, these were subjected by Mr. Grote to a searching criticism, the pointed vigour of which will be duly appreciated. The statement of his own view of Aristotle’s doctrine, though containing little that may not be found at more places than one in the body of the present work, is yet reprinted, because iteration was his favourite art for impressing anything to which he attached as much importance as he did attach to this conviction of his, regarding the very heart of Aristotle’s thought.

The long abstracts of six books of the Metaphysica and two books of the De Coelo, next following in the Appendix, are sections of a character altogether different from the foregoing. Evidently not intended for publication, they have been included, partly as furnishing some indication of the labour the author underwent in seeking to lay hold of his subject, partly because of their inherent value. From the first motive, they are here reproduced as nearly as possible in the guise they wore as preliminary drafts, bestrewed with references. Their value consists in the fact that they give Mr. Grote’s interpretation of the text of treatises at once exceedingly difficult and important: difficult, as is proved by the great divergence, among commentators at many points; important, not more for the deeper aspects of Aristotle’s own system, than for the speculations of the earlier Greek philosophers on which they are the classical authority. What relation, in the case of each treatise, the books abstracted (often translated) hold to the other books left untouched, is specially indicated at the beginning of the third section and at the end of the fourth. Here let it suffice to mention that each abstract has a certain completeness in itself, and at the same time a bond of connection with the other. The abstract of the Metaphysica closes where Aristotle descends to speak of the concrete heavenly bodies, and just as much of the De Coelo is given as treats specially of these. This connection, whether or not it was present to the author’s mind, enhances the value of the abstracts as here presented.3

In the remaining sections of the Appendix, not dealing with Aristotle, the short account of Epikurus aims at setting in its true light a much-maligned system of thought. On writing it, in 1867, Mr. Grote remarked that the last word had not yet been said on Epikurus. The ethical part of the sketch was printed at the time:4 the whole is now given. More fragmentary is the notice of the Stoics, as merely replacing passages that he considered inadequate in a sketch submitted to him. Since it formed part of his entire design to add to the treatment of Aristotle a full exposition both of Stoic and Epikurean doctrines, considered as the outgrowth of the Cynic and Kyrenaic theories already handled at the end of the ‘Plato,’ the two fragments may not unfitly close the present work.

Taken altogether, the two volumes are undoubtedly a most important contribution to the history of ancient thought. As regards Aristotle, the author’s design must be gathered chiefly from the first eleven chapters, — begun as these were in 1865, and proceeded with in their order, till he was overtaken, in the act of composing the last, by the insidious malady which, after six months, finally carried him off. Perhaps the most striking feature in the exposition of the Organon, is the very full analysis given of the long treatise called Topica. While the other treatises have all, more or less, been drawn upon for the ordinary theory of Logic, the Topica, with its mixed logical and rhetorical bearings, has ceased to be embodied in modern schemes of discipline or study. Mr. Grote’s profound interest in everything pertaining to Dialectic drew him especially to this work, as the exhibition in detail of that habit of methodized discussion so deeply rooted in the Hellenic mind. And in the same connection it may be noted how the natural course of his work brought him, in the last months of his intellectual activity, to tread again old and familiar ground. A plea — this time against Aristotle — for the decried Sophists, and, once more, a picture of that dialectical mission of Sokrates which for him had an imperishable charm, were among the very last efforts of his pen.

Besides making up the Second Volume from the end of Chapter XI., the editors have, throughout the whole work, bestowed much attention on the notes and references set down by the author with his usual copious minuteness. It was deemed advisable to subject these everywhere to a detailed verification; and, though the editors speak on the matter with a diffidence best understood by those who may have undergone a similar labour, it is hoped that a result not unworthy of the author has been attained. In different places additional references have been supplied, either where there was an obvious omission on the author’s part, or in farther confirmation of his views given in the text: such references, mostly to the works of Aristotle himself, it has not been thought necessary to signalize. Where, as once or twice in the Appendix, a longer note in explanation seemed called for, this has been printed within square brackets.

From the text some passages, where the iterations seemed excessive, have been withheld, but only such as it was thought the author would himself have struck out upon revision: wherever there was evidence that revision had been made, the iterations, freely employed for emphasis, have been allowed to stand. On rare occasions, interpolations and verbal changes have been made with the view of bringing out more clearly the meaning sought to be conveyed. It is impossible to be more deeply sensible than the editors are, of the responsibility they have thus incurred; but they have been guided by their very respect for the venerable author, and they were fortunate in the many opportunities they enjoyed of learning from his own lips the cast of his views on Aristotle.5

An index has been drawn up with some care; as was needful, if meant to be of real service to the readers of so elaborate a work.

It only remains to add that in printing the Greek of the notes, &c., the text of Waitz has been followed for the Organon (everywhere short of the beginning); the text of Bonitz, for the Metaphysica; and for other works of Aristotle, generally the Berlin edition. Regard was had, as far as the editors’ knowledge went, to the author’s own preferences in his reading.