This volume is a revival and updating of the rationalism initiated by the Cartesian cogito. Even the four main divisions of the work give evidence of this: Perception, the Real World, Real Mind, and the Suprarational. The order of treatment is not identical in every respect with that of Descartes, but the four main themes are indubitably Cartesian. While the protagonist is Descartes, the antagonist to whom this volume is consciously addressed is the empiricist and the positivist. Professor Robinson seems (...) intent on convincing the contemporary positivist that science is primarily an affair of reason and secondarily one of experience. He enlists two formidable allies of Descartes to elucidate and solidify his position. One he finds in the same century as Descartes, the redoubtable Leibniz; the other he takes from the twentieth century, Bertrand Russell. The problem of perception is resolved by the joint solution of Leibniz and Russell, a solution which rejects a naive realism in favor of a metarealism. The singular attraction of this volume is the personal dedication and expertise which Professor Robinson brings to this subject. His exploration and defense of his rationalistic premise brings him to examine epistemic issues and paradoxes which have cast long shadows over the history of modern and contemporary philosophy in Western civilization. These are the issues with which the inheritors of the Cartesian cogito have been wrestling: Spinoza, Leibniz, Locke, Berkeley, Hume, and Kant. Another very attractive aspect of this volume is that whereas Professor Robinson’s thesis has its protagonist and antagonist, it does not explicitly address itself to these. They remain more in the background as the audience to whom the book is addressed. They are not called on explicitly to engage in the exposition. In this sense, the book is not presented as a professorial treatise with copious footnotes and an extensive bibliography. It is presented as a personal exposition engaging in the act of philosophizing within the letter and spirit of a rationalistic revival. In spite of this personal and personalized renewal of rationalism on the part of Professor Robinson, it should not be construed that the book is written either for the layman or by a layman. It is a methodical and technical exposition replete with the coinage of new terms befitting the spirit of a philosophy operating within the parameters of a self-enclosed and self-contained scientism. Professor Robinson presents his book as a viable alternative to the monopoly which the empiricist and positivist have exercised within the domain of the philosophy of science.—R.E.D. (shrink)