The objective of this doctoral dissertation is to interpret the explanation of akrasia that the Dutch philosopher Benedictus Spinoza (1632-1677) gives in his work The Ethics. One is said to act acratically when one intentionally performs an action that one judges to be worse than another action which one believes one might perform instead. In order to interpret Spinoza’s explanation of akrasia, a large part of this dissertation investigates Spinoza’s theory of emotion. The first chapter is introductory and outlines Spinoza’s (...) categorisation of mental states and his conception of the relation between the mind and the body. The second chapter deals with Spinoza’s epistemology and the relation between cognitive mental states and states of the brain. The third chapter argues that Spinoza holds that emotions are non-cognitive mental states that are caused by cognitive mental states. The fourth chapter interprets Spinoza’s discussion of the emotions of Joy and Sadness insofar as they are mental states. The fifth chapter suggests that when Spinoza says that the power of our body is increased or decreased when we are joyful or sad, he means that when we are joyful or sad then, at the same time, our heart and perhaps the organs of our digestive system are affected in such a way that our bodily health is increased or decreased. The sixth chapter points to three problems that concern Spinoza’s definitions of the psychophysical states of pleasure, pain, cheerfulness and melancholy, and offers slightly altered definitions of these states. The seventh chapter interprets the various aspects of Spinoza’s conception of the emotion of Desire, both insofar as it is a state of the mind and insofar it is a state of the body, as well as the relation between the emotion of Desire and man’s striving for self-preservation. The eighth chapter discusses what Spinoza writes on the strength of emotions and the way in which we make value judgments in order to finally interpret why it is, according to Spinoza, that ‘we so often see the better for ourselves but follow the worse’. (shrink)

Spinoza's account of belief entails that if A has two ideas, p and q, with incompatible content, A believes that p if the idea of p is stronger than the idea of q. This seems to leave little space for dominant non-beliefs, or cases in which there is discord between one's beliefs and one's affective-behavioral responses. And yet Spinoza does allow for two classes of dominant non-beliefs: efficacious fictions [fictiones] and ideas that conduce to akrasia. I show how Spinoza can (...) account for dominant non-beliefs within his model of cognition by distinguishing between the doxastic and the affective powers of ideas and by suggesting that doxastic power is best understood diachronically. While other scholars have stressed the elegance of Spinoza's account of ideas, this paper highlights the sophistication and flexibility of his account. (shrink)

Two priority problems frustrate our understanding of Spinoza on desire [cupiditas]. The first problem concerns the relationship between desire and the other two primary affects, joy [laetitia] and sadness [tristitia]. Desire seems to be the oddball of this troika, not only because, contrary to the very definition of an affect, desires do not themselves consist in changes in one's power of acting, but also because desire seems at once more and less basic than joy and sadness. The second problem concerns (...) the priority of desires and evaluative judgements. While 3p9s and 3p39s suggest that evaluative judgements are posterior to desires, Andrew Youpa has recently argued that passages in Ethics 4 indicate that rational evaluative judgements can give rise to, rather than arise out of, desires. I aim to offer solutions to these problems that reveal the elegance and coherence of Spinoza's account of motivation. Ultimately, I argue that whereas emotions and d.. (shrink)

In this paper, I argue that despite undeniable fundamental differences between Descartes’ and Spinoza’s accounts of human action, there are some striking similarities between their views on right action, moral motivation, and virtue that are usually overlooked. I will argue, first, that both thinkers define virtue in terms of activity or freedom, mutatis mutandis, and thus in terms of actual power of acting. Second, I will claim that both Descartes and Spinoza hold a non-consequentialist approach to virtue, by which human (...) actions are evaluated as virtuous or good on the basis of their motivational forces rather than their consequences. I will show further that both philosophers identify virtue qua free action with the highest good (summum bonum), and thus with that which is to be sought for its own sake and not as a means to anything preferable to it. (shrink)