This thesis investigates Schopenhauer’s Spinozism in relation to the topics of the self and ethics. It aims to show that a recognition of the parallels between the two philosophers is illuminating in terms of understanding and interpreting Schopenhauer’s philosophy. Such a recognition brings to the fore philosophical resources in his system which are otherwise under-exploited, helps to solve interpretive puzzles and provides a new vocabulary with which to more adequately delineate key Schopenhauerian concepts.Chapters one and two address the metaphysics of the self in the philosophies of Schopenhauer and Spinoza, arguing that neither thinker accepts the Cartesian dogma that the self is to be identified with the mind; each insists upon the s...