ARISTOTLE'S CRITICISM OF PLATO AND THE ACADEMY LONDON HUMPHREY MILFORD OXFORD UNIVERSITY PRESS ARISTOTLE'S CRITICISM OF PLATO AND THE ACADEMY VOLUME I BY HAROLD CHERNISS The ]ohns Hopkins University BALTIMORE THE JOHNS HOPKINS PRESS 1944 COPYRIGHT 1944, TUB JOHNS HOPKINS PRBSS SECOND PRINTING, 194$ Trlnlli t»i UlbofrlmtlJ l» V S A UnllX'tlly untfrlxltn, Y*i<W(, Wcilfn, l$<< To MY TEACHERS OF GREEK IN BERKELEY JAMES T. ALLEN GEORGE M CALHOUN ROGER M. JONES IVAN M. LINFORTH FOREWORD In the two volumes which will constitute this work I propose to give a complete account and analysis of all that Aristotle says about Plato and about Plato's pupils and associates in the Academy. Upon the various aspects of this subject much has been written, much more than can be here passed m review, for in one way or another it has been a matter of concern to all inter preters of Academic philosophy. There remain, as will be shown in the course of the present work, a few clear indications of what some of Aristotle's contemporaries in the Academy thought and said about certain of his statements concerning Plato's doctrines. Among the later Greek commentators, a strict Peripatetic like Alexander of Aphrodisias could accept Aris totle's criticism of the Academy at its face value and try to enforce it, although even Alexander's teacher, Aristocles, appears to have maintained that the Aristotelian and Platonic philosophies were essentially m agreement. Those commen tators who were Neo-Platomsts, however, either charged Aris totle with lack of understanding and worse, as Syrianus did (cf. Zeller, Phil. Gnecb., Ill, 2, p 821), or, seeking like the earlier eclectics to reconcile him with Platonism as they understood and espoused it, insisted that he had never intended to criticise Plato's real meaning, which of course he had understood, but only to refute by anticipation the superficial meaning which careless readers might mistakenly take from Plato's words (e. g. Simplicius, De Caelo, p. 640, 27-32, Asclepius, Metaph., p. 166, 35-36; cf. Zeller, Phil. Gnech., Ill, 2, pp. 741-2, 911-12). In modern times scholars have been concerned with Aristotle's remarks about Plato chiefly as evidence of what the latter said and meant; and yet no agreement has been reached concerning the weight and value to be assigned to this evidence. The phi losopher Hegel in his Vorlesungen fiber dte Geschkhte der Philosophie attacked " der gelehrt seyn wollende Scharfsinn " which declares that Aristotle did not rightly understand Plato.1 * G, W. F. Hegel, Sdmtltcbe Werke (Jubilaumsausgabe in wrarwlg Ba'nden von ix X FOREWORD An example of the opinion attacked by Hegel is Friedrich Ast's statement that the peculiar genius of Plato's manner of thinking and writing obviously had remained an alien thing to Aristotle {Platon's Leben mid Schriften, p. 390, note). In 1826 F. A. Trendelenburg published a monograph entitled Plaionis De Ideis Et Numer/s Doctrina Ex Aristotele lllustrata. This was designed to repair what Trendelenburg called the neglect with which historians of ancient philosophy had hitherto treated Aristotle's scattered statements concerning Plato's doctrine (p. 5); and it may have been the influence of Hegel's lectures which caused him to introduce his subject (p. 3) with the state ment: " Aristotelem vero Platonis philosophiam recte intelle- gere et candide tradere aufc nescivisse aut noluisse, nemo jure contended" Nevertheless, both of these charges were later brought against Aristotle by Teichmuller who rejected his testi mony wholesale (Studten zur Geschichte der Begriffe, p. 322; Literariscke Vehden [ L881], pp. 228-32); and Natorp, whose interpretation of the theory of ideas though different from Teichmuller's is also in conflict with Aristotle's, devoted two chapters of his book, Platos Ideenlehre (pp. 384-456 of the second edition, 1921) to the demonstration that Aristotle utterly failed to understand the meaning of Plato's doctrine. Con- stantin Ritter, approving the judgment of Teichmuller and Natorp, declared the unreliability of Aristotle's testimony con cerning Plato to be an established fact (Neue Unterwchungen fiber Platon, pp. 37-8; Platon, I, p. 584); and Otto Kluge in his dissertation, Darstellung und Beurteitung der Einwendungen des Aristoteles gegen die Platonischen Ideenlehre, though re jecting Natorp's interpretation of the ideas (pp. 24-6), came to conclusions concerning Aristotle's misunderstanding of Plato (pp. 65-74) which are substantially—and m large part even verbally—identical with those of Natorp.2 Hermann Glockncr), XVII, p. 205 and XVIII, p 300. These passages and the possibility of Hegel's influence upon Trendelenburg were brought to my attention by my colleague, Dr Ludwig Edelstein ' Kluge's dissertation u more systematic but no less meager than Natorp's treatment of the subject and does not begin to do justice to the available material either from the point of view of Aristotle or from that of Plato. Of Edgar Freund's dissertation, Aristoteles Siellung zur Plaionisthsn Ifoenltbri, I have FOREWORD xt Hegel's conception of the development of philosophy caused htm to consider Aristotle m fact the successor of Plato (op. cit., XVIII, pp. 298, 301). In similar fashion more than a century later Werner Jaeger, in whose eyes Plato's philosophy was the " matter " out of which the newer and higher form of Aristotle's thought proceeded by a gradual but steady and un- deviating development (Aristoteles, p. 11), pronounced the " old controversy," whether or not Aristotle understood Plato, to be " absolut verstandmslos " [pp. cit., p. 159)- Yet this did not prevent Leisegang from reasserting that Aristotle's own pattern of thinking was incompatible with a proper under standing of Plato {Denkformen, pp 216 If., cited in Leisegang's Die Platondeutung der Gegenwart, p. 8, n. 2); and to Jaeger's pronouncement De Vogel has replied that, on the contrary, the question is philosophically necessary (Een Keerpunt in Plato's Denken, p. 231). So much at least need not be debated merely on the ground of psychological probabilities, modern theories of the history of philosophy, or our own understanding of Plato's writings, for, if another of Plato's students be found in disagreement with Aristotle's interpretations, it is obvious that both cannot be in the right, though it is possible that both may have been mistaken. Certainly Speusippus and Xenocrates would have been unimpressed by the much repeated modern argument that Aristotle's long association with Plato guarantees his correct understanding of the latter's philosophy. Even if it be true, however, that "Aristotle is the last authority to look to for a fair and liberal account of Platonism " (Mane V. Williams, Six Essays on the Platonic Theory of Knowledge, p 132), must not his reports, as distinguished from his inter pretations, be considered unimpeachable testimony? Such is the plausible distinction adopted by A. li. Taylor (Plato*, p. 503) and by John Burnet before him {Greek Phdosophy, I, pp, 312-13) who say that we are bound to believe Aristotle when he tells us that Plato said a particular thing but not when been able to obtain only a "Teildruck" published in 1936 which contains the first two of rive announced chapters, so far as can be judged from such a sample, this dissertation appears to be no improvement over that of Kluge, of which it falls short, moreover, in excluding from consideration the so-called Platonic " number-theory." Xii FOREWORD he tells us what Plato meant or what the historical origin of a doctrine was. The plausibility of this neat distinction is con siderably diminished, however, by common experience which teaches that in spite of the best intentions a witness' testimony as to fact is deeply affected by his own unconscious interpre tation of the fact. The applicability of the distinction is espe cially impaired in the case of Aristotle who so intertwined report, interpretation, and criticism that even von Stein, who defended his account of Plato, asserted that his reports and his criticisms are prejudiced by each other (Sieben Biicher zur Geschichte des Platonismus, II, p. 77, n. 1). Moreover, other scholars have maintained that A/istotle not infrequently puts into the mouth 'of a philosopher what he considers the necessary implication of that philosopher's doctrine as he interprets it and that he gives mistaken reports, not merely interpretations, of Platonic dialogues which are at our disposal. "With such considerations in mmd Tannery declared: " Anstote a £te* asset souvent pris a torturer et i rendre meconnaissables des passages emprunt& aux Dialogues pour que ses indications les plus precises ne soient point recues sans controle (L'Education Platonicienne = Mimoires Scientifiques, VII, p. 89). What has particularly exercised modern scholars is the fact that Aristotle ascribes to Plato a form of the theory of ideas which does not appear in Plato's dialogues. This discrepancy was for some time explained by assuming that Aristotle's reports and criticisms refer to an "esoteric" doctrine which Plate reserved for his intimate associates and purposely excluded from his published writings (e.g. Tennemann, System der Plato- nischert Phtlosophie, I, p. 114 and Geschichte der Philosophic, II, pp. 205-22) To help lay the ghost of this " esoteric Platon- ism," which, attacked both by Schleiermacher (Plato's Werke, 1,1, pp. 11fl.) and by Hegel (op. cit., XVIII, pp. 179-80), has several times been revived and each time diligently disposed of, Zeller in 1839 published Die Darstellung der Platomschen Pht losophie bet Aristotehs as the third essay in his Platonische Studien (cf. pp. 199-200 and 300). Here, as later in his History (Phil. Griech; II, 1, pp. 679-86, 750-60, 946-51), he concluded that Aristotle's account of a theory of idea-numbers which are derived from two ultimate principles comes not from the