The thesis investigates the implications for moral philosophy of research in psychology. In addition to an introduction and concluding remarks, the thesis consists of four chapters, each exploring various more specific challenges or inputs to moral philosophy from cognitive, social, personality, developmental, and evolutionary psychology. Chapter 1 explores and clarifies the issue of whether or not morality is innate. The chapter’s general conclusion is that evolution has equipped us with a basic suite of emotions that shape our moral judgments in (...) important ways. Chapter 2 presents and investigates the challenge presented to deontological ethics by Joshua Greene’s so-called dual process theory. The chapter partly agrees with his conclusion that the dual process view neutralizes some common criticisms against utilitarianism founded on deontological intuitions, but also points to avenues left to explore for deontologists. Chapter 3 focuses on Katarzyna de Lazari-Radek and Peter Singer’s suggestion that utilitarianism is less vulnerable to so-called evolutionary debunking than other moral theories. The chapter is by and large critical of their attempt. In the final chapter 4, attention is directed at the issue of whether or not social psychology has shown that people lack stable character traits, and hence that the virtue ethical view is premised on false or tenuous assumptions. Though this so-called situationist challenge at one time seemed like a serious threat to virtue ethics, the chapter argues for a moderate position, pointing to the fragility of much of the empirical research invoked to substantiate this challenge while also suggesting revisions to the virtue-ethical view as such. (shrink)

Thought experimental methods play a central role in empirical moral psychology. Against the increasingly common interpretation of recent experimental data, I argue that such methods cannot demonstrate that moral intuitions are produced by reflexive computations that are implicit, fast, and largely automatic. I demonstrate, in contrast, that evaluating thought experiments occurs at a near-glacial pace relative to the speed at which reflexive information processing occurs in a human brain. So, these methods allow for more reflective and deliberative processing than has (...) commonly been assumed. However, these methods may still provide insight into some human strategies for navigating unfamiliar moral dilemmas. (shrink)

Moral purism is a commonly held view on moral worthiness and how to identify it in concrete cases. Moral purists long for a moral world in which (business) people—at least sometimes—act morally worthy, but in concrete cases they systematically discount good deeds as grounded in self-interest. Moral purism evokes moral cynicism. Moral cynicism is a problem, both in society at large and the business world. Moral cynicism can be fought by refuting moral purism. This article takes issue with moral purism. (...) The common strategy to tackle moral purism is to reject the exclusion thesis which states that self-interest and the ‘pure’ moral motive (and thus moral worthiness) exclude each other. We develop a different strategy. We argue that moral purists are mistaken in the way they judge moral worthiness in concrete cases. They employ the wrongprocedureand the wrongcriteria.We develop a proper procedure and proper criteria. We build on Kant, who we argue is unfairly regarded as the champion of moral purism. In order to see how Kant can develop a consistent (non-purist) philosophy, the exclusion thesis must be embedded in Kant’s transcendental philosophy. Properly embedded, Kant turns out to be both anti-purist and anti-cynical. (shrink)

Experimental moral philosophy emerged as a methodology in the last decade of the twentieth century, as a branch of the larger experimental philosophy (X-Phi) approach. Experimental moral philosophy is the empirical study of moral intuitions, judgments, and behaviors. Like other forms of experimental philosophy, it involves gathering data using experimental methods and using these data to substantiate, undermine, or revise philosophical theories. In this case, the theories in question concern the nature of moral reasoning and judgment; the extent and sources (...) of moral obligations; the nature of a good person and a good life; even the scope and nature of moral theory itself. This entry begins with a brief look at the historical uses of empirical data in moral theory and goes on to ask what, if anything, is distinctive about experimental moral philosophy—how should we distinguish it from related work in empirical moral psychology? After discussing some strategies for answering this question, the entry examines two of the main projects within experimental moral philosophy, and then discusses some of the most prominent areas of research within the field. As we will see, in some cases experimental moral philosophy has opened up new avenues of investigation, while in other cases it has influenced longstanding debates within moral theory. (shrink)

In this dissertation I discuss the epistemology of ethical intuitionism, in particular the claim that mature moral agents possess self-evident moral knowledge. Traditional intuitionists such as W.D. Ross have claimed that by reflection, we can acquire knowledge of our basic moral duties such as the duty of veracity or benevolence. Recent defenders of intuitionism such as Robert Audi have further developed this theory and argued that adequate understanding can be sufficient for moral knowledge. I criticize this view and argue that (...) such accounts fail to make a convincing case for a foundationalist moral epistemology. Instead, I propose to separate the question of how we acquire moral knowledge from an account that justifies moral beliefs. In response to the first issue, I draw an analogy between our moral intuitions and chosmkian linguistics; in both areas, I argue, human beings possess a universal, unconscious and (partly) inaccessible system of rules that explains how we come to learn language and to make moral judgments. In regards to the justificatory issue, I address recent evolutionary debunking arguments designed to undermine the claim that our moral judgments track stance-independent truths. I try to show that this conclusion only follows under the assumption of an instrumentalist interpretation of moral reasoning which the intuitionist is not forced to accept. (shrink)