"Schopenhauer's analyses of causation and related concepts . . . rival and probably surpass in their depth and brilliance the more celebrated discussions of David Hume. Where Hume grossly oversimplified these problems and left them riddled with paradoxes, Schopenhauer disentangled them and shed light on what had seemed hopelessly dark." --Richard Taylor, University of Rochester

This book is a philosophical commentary on Schopenhauer's "Fourfold Root of the Principle of Sufficient Reason," dealing with each of Schopenhauer's principal topics in turn. It also provides the reader with a general survey of Schopenhauer's later philosophical views and puts them into an historical context

This volume collects 12 essays by various contributors on the subject of the importance and influence of Schopenhauer’s doctoral dissertation (On the Fourfold Root of the Principle of Sufficient Reason) for both Schopenhauer’s more well-known philosophy and the ongoing discussion of the subject of the principle of sufficient reason. The contributions deal with the historical context of Schopenhauer’s reflections, their relationship to (transcendental) idealism, the insights they hold for Schopenhauer’s views of consciousness and sensation, and how they illuminate Schopenhauer’s theory of action. This is the first full-length, English volume on Schopenhauer’s Fourfold Root and its relevance for Schopenhauer’s philosophy. The thought-provoking essays collected in this volume will undoubtedly enrich the burgeoning field of Schopenhauer-studies.

Originally published in 1813, this early work by German philosopher Arthur Schopenhauer is both expensive and hard to find in its first edition. Originally published as his doctoral dissertation and then later re-published, it outlines his cornerstone arguments on the subject of knowing. This fascinating work is highly recommended for anyone interested in 19th century philosophy and its development. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

The Principle of Sufficient Reason (PSR) says that all contingent facts must have explanation. In this 2006 volume, which was the first on the topic in the English language in nearly half a century, Alexander Pruss examines the substantive philosophical issues raised by the Principle Reason. Discussing various forms of the PSR and selected historical episodes, from Parmenides, Leibnez, and Hume, Pruss defends the claim that every true contingent proposition must have an explanation against major objections, including Hume's imaginability argument and Peter van Inwagen's argument that the PSR entails modal fatalism. Pruss also provides a number of positive arguments for the PSR, based on considerations as different as the metaphysics of existence, counterfactuals and modality, negative explanations, and the everyday applicability of the PSR. Moreover, Pruss shows how the PSR would advance the discussion in a number of disparate fields, including meta-ethics and the philosophy of mathematics.