G.A. Cohen and David Estlund claim that, because of their fact-dependent nature, constructivist theories of justice do not qualify as moral theories about fundamental values such as justice. In this paper, I defend fact-dependent, constructivist theories of justice against this fact-independency critique. I argue that constructivists can invoke facts among the grounds for accepting fundamental principles of justice while maintaining that the foundation of morality has to be non-empirical. My claim is that constructivists ultimately account for the normativity of fact-dependent (...) principles by referring to a fact-independent, moral conception of the person, which is not a principle of justice.1. (shrink)

The central question for this dissertation is, how do we do moral philosophy well from within a broadly naturalist framework? Its main goal is to lay the groundwork for a methodological approach to moral philosophy that integrates traditional, intuition-driven approaches to ethics with empirical approaches that employ empirical data from biology and cognitive science. Specifically, it explores what restrictions are placed on our moral theorizing by findings in evolutionary biology, psychology, neuroscience, and other fields, and how we can integrate this (...) data while still offering a fully normative account of ethics. To that end, the dissertation explores the methodological assumptions behind both traditional and more empirical or experimental approaches to ethics, to find where these assumptions cannot be properly supported and need to be re-examined. Chapter 1 explores the science-based objections that have been raised to traditional approaches, with a particular focus on questions concerning the reliability of moral intuitions. Chapter 2 examines three fundamental assumptions supporting the empirical approach to moral philosophy, and how those assumptions ultimately do not fit with how we ought to understand the project of ethics. In chapter 3, I discuss the fact/value distinction, and the restrictions that are placed on our moral theorizing by our commitment to this distinction. Chapter 4 offers a defense of ‘companions in guilt’ arguments, and uses these arguments to draw an analogy between moral philosophy and epistemology that will be used to help defend moral philosophy against empirical debunking arguments. Chapter 5 explores the ways in which epistemologists’ methods of incorporating empirical data into their research while maintaining the normativity of their accounts can be adapted to allow moral philosophers to do the same, and brings together the various methodological concerns addressed up to this point to lay out a methodological approach I call empirically-informed moral philosophy. (shrink)

How much personal partiality do agent-centred prerogatives allow? If there are limits on what morality may demand of us, then how much does it permit? For a view Henry Shue has termed ‘yuppie ethics’, the answer to both questions is a great deal. It holds that rich people are morally permitted to spend large amounts of money on themselves, even when this means leaving those living in extreme poverty unaided. Against this view, I demonstrate that personal permissions are limited in (...) certain ways: their strength must be continuous with the reasons put forward to explain their presence inside morality to begin with. Typically, these reasons include non-alienation and the preservation of personal integrity. However, when personal costs do not result in alienation or violate integrity, they are things that morality can routinely demand of us. Yuppie ethics therefore runs afoul of what I call the ‘continuity constraint’. (shrink)