Abstract
Schopenhauer shares with Spinoza the basic idea that “the world exists by its own inner power and through itself”. Spinoza's system, Schopenhauer maintains, elaborately captures the observation, at the core of both pantheism and Schopenhauer's own theory, that all experienced phenomena share a single metaphysical substratum, and that in this sense everything is one. Any view or system of thought upholding optimism must confront the challenge of accounting for those features of the world that appear to be less than optimal. For Schopenhauer, Judaism is committed to the goodness of the world given its creation by a personal God. It has been suggested that Schopenhauer ought not to criticize the rejection of personal immortality, since he himself thinks individual lives are perishable. Apart from the theoretical problems that Schopenhauer locates in maintaining optimism, he also takes issue with its practical implications.