In lieu of an abstract, here is a brief excerpt of the content:468 HISTORY OF PHILOSOPHY explanation of this in terms of "Aristotelian" categories is not Plotinus at his most convincing. Certainly Aristotle could not possibly have accepted the use of the categories of potentiality and actuality that O'Daly finds at VI. 2.20.20ff., and it is difficult to see how anyone could regard as seriously illuminatinga solution in which there is a "reciprocal" relationship between part (or particular) and whole such (...) that the whole is potentially the part, which is, actually, while simultaneously the part is potentially the whole, which is, actually. Throughout, O'Daly strives to avoid obscurantistic appeals in explicating Plotinus's thought. As typical of his approach I would cite his philological solution of the puzzling passage at V. 1.7.4-6 where Plotinus seems either to claim that the One produces intelligence by intelligence's acting in a certain way, or uncharacteristicallyto attribute thought to the One. Plotinus is not asking, O'Daly claims, how the One produces nous, but rather how it is that what is produced is nous. The solution is both neat and clear. I was disappointed, for this reason, with the concluding lines of the book. O'Daly is determined, as we have seen, to find the self preserved in the mystical union with the One. Unable to find this in Plotinus's characterization of the self in terms of nous orpsych~ he turns to the One itself to find a clue, for the One is an egregious instance of self. The move renders "selfhood, for Plotinus... in strict contrast to individuality" (p. 91), which is perplexing enough in view of O'Daly's previous stress on the identity of the self at its various levels. But it also provides him with the concept of epibol~, the "simple intuitive approach to Itself" (p. 93) that characterizes the One at VI. 7. 38. 10-39ff. and is used to characterize the approach to the One at III. 8.9. 20ff. O'Daly seizes on this concept to provide a perfectly obscure solution to his problem in these mysterious concluding words: "The term epibol~ links the two passages [III. 8.9 and VI. 7. 38]: both seem to corroborate the assertions that, on the one hand, the One is a Self, and, on the other, that, of the faculty experiencing unio, we can say no more than that it is--'the self'"(p. 94). O'Daly is forced to this pass, 1 believe, by his taking the mystical experience as too central in Plotinus's thought, as the cornerstone of his system, while, in reality, the heart of this system lies in the intelligible realm and its ties to the phenomenal. The union with the super-real, I suggest, serves only to indicate to the individual that he has overreached himself and needs, in good Platonic fashion, to return to the realm of intelligibility,that realm of nous and soul that O'Daly has spent the bulk of his time usefully examining. JEROME P. SCHILLER Washington University Descartes. By Jonathon R6e. (New YOrk: Pica Press, 1975. Pp. 204) Like the Discours de la m~thode, this is an "elegant essay," clear, condensed, and orderly. It analyzes in brief the Cartesian system of philosophy, pointing out that Descartes's approach to science was philosophical, although his philosophy was an attempt to discover the most scientific forms of description. And science for this "nouveau philosophe" was not qualitative but quantitative. The book furnishes an antidote to the myth popularized by Voltaire that misrepresents Descartes as an unscientific rationalizer whose fantastic physics was entirely superseded by Newton's. "The habit of classifying thinkers into warring schools," warns the author, "has resulted in a completely mistaken image of Descartes" (p. 13). Newtonian physics R6e sees as in the Cartesian tradition. After an analytical table of contents, ~t la Descartes, the book starts with a one-page chronological table, from which one regrettably misses the Cogitationes privatae, the Recherche de la v~rit~ par la lumi~re naturelle, the Primae cogitationes circa generationem animalium, and the Trait6 des passions de l'ame. A brief introduction is followed by sixteen short chapters and two appendices. The first appendix... (shrink)