This is the most comprehensive book ever published on philosophical methodology. A team of thirty-eight of the world's leading philosophers present original essays on various aspects of how philosophy should be and is done. The first part is devoted to broad traditions and approaches to philosophical methodology. The entries in the second part address topics in philosophical methodology, such as intuitions, conceptual analysis, and transcendental arguments. The third part of the book is devoted to essays about the interconnections between philosophy (...) and neighbouring fields, including those of mathematics, psychology, literature and film, and neuroscience. (shrink)

Philosophy strives to give us a firmer hold on our concepts. But what about their hold on us? Why place ourselves under the sway of a concept and grant it the authority to shape our thought and conduct? Another conceptualization would carry different implications. What makes one way of thinking better than another? This book develops a framework for concept appraisal. Its guiding idea is that to question the authority of concepts is to ask for reasons of a special kind: (...) reasons for concept use, which tell us which concepts to adopt, adhere to, or abandon, thereby shoring up—or undercutting—the reasons for action and belief that guide our deliberations. Traditionally, reasons for concept use have been sought either in timeless rational foundations or in concepts’ inherent virtues, such as precision and consistency. Against this, the book advances two main claims: that we find reasons for concept use in the conceptual needs we discover when we critically distance ourselves from a concept by viewing it from the autoethnographic stance; and that sometimes, concepts that conflict, or exhibit other vices such as vagueness or superficiality, are just what we need. By considering not what concepts are absolutely best, but what concepts we now need, we can reconcile ourselves to the contingency of our concepts, determine the proper place of efforts to tidy up thought, and adjudicate between competing conceptions of things,—even things as contested as liberty or free will. A needs-based approach separates helpful clarification from hobbling tidy-mindedness, and authoritative definition from conceptual gerrymandering. (shrink)

In medical ethics, business ethics, and some branches of political philosophy (multi-culturalism, issues of just allocation, and equitable distribution) the literature increasingly combines insights from ethics and the social sciences. Some authors in medical ethics even speak of a new phase in the history of ethics, hailing "empirical ethics" as a logical next step in the development of practical ethics after the turn to "applied ethics." The name empirical ethics is ill-chosen because of its associations with "descriptive ethics." Unlike descriptive (...) ethics, however, empirical ethics aims to be both descriptive and normative. The first question on which I focus is what kind of empirical research is used by empirical ethics and for which purposes. I argue that the ultimate aim of all empirical ethics is to improve the context-sensitivity of ethics. The second question is whether empirical ethics is essentially connected with specific positions in meta-ethics. I show that in some kinds of meta-ethical theories, which I categorize as broad contextualist theories, there is an intrinsic need for connecting normative ethics with empirical social research. But context-sensitivity is a goal that can be aimed for from any meta-ethical position. (shrink)

Methodological naturalism arises as a topic in metaethics in two ways. One is the issue of whether we should be methodological naturalists when doing our moral theorising, and another is whether we should take a naturalistic approach to metaethics itself. Interestingly, these can come apart, and some naturalist programs in metaethics justify a non-scientific approach to our moral theorising. This paper discusses the range of approaches that fall under the general umbrella of methodological naturalism, and how naturalists view the role (...) of science in ethics and metaethics. It discusses how naturalism interacts with the use of intuitions, using conceptual analysis, and reflective equilibrium methods. Finally, it discusses some ways using scientific investigation can make distinctive contributions to ethics and metaethics. (shrink)

This paper considers John Doris, Stephen Stich, Alexandra Plakias, and colleagues’ recent attempts to utilize empirical studies of cross-cultural variation in moral judgment to support a version of the argument from disagreement against moral realism. Crucially, Doris et al. claim that the moral disagreements highlighted by these studies are not susceptible to the standard ‘diffusing’ explanations realists have developed in response to earlier versions of the argument. I argue that plausible hypotheses about the cognitive processes underlying ordinary moral judgment and (...) the acquisition of moral norms, when combined with a popular philosophical account of moral inquiry—the method of reflective equilibrium—undercut the anti-realist force of the moral disagreements that Doris et al. describe. I also show that Stich's recent attempt to provide further theoretical support for Doris et al.'s case is unsuccessful. (shrink)

Este artículo está escrito para una colección de ensayos introductorios sobre filosofía de las ciencias cognitivas. Es una revisión (selectiva) de la literatura sobre la psicología del juicio moral.

What is moral reasoning? For that matter, what is any sort of reasoning? Let me begin by making a few distinctions. First, there is a distinction between reasoning as something that that people do and the abstract structures of proof or “argument” that are the subject matter of formal logic. I will be mainly concerned with reasoning in the first sense, reasoning that people do. Second, there is a distinction between moral reasoning with other people and moral reasoning by and (...) for yourself . Moral reasoning with others may involve discussion with them, bargaining with them, and possibly arguing with them. (shrink)

Healthcare priority-setting institutions have good reason to want to demonstrate that their decisions are morally justified—and those who contribute to and use the health service have good reason to hope for the same. However, finding a moral basis on which to evaluate healthcare priority-setting is difficult. Substantive approaches are vulnerable to reasonable disagreement about the appropriate grounds for allocating resources, while procedural approaches may be indeterminate and insufficient to ensure a just distribution. In this paper, we set out a complementary, (...) coherence-based approach to the evaluation of healthcare priority-setting. Drawing on Rawls, we argue that an institutional priority-setter’s claim to moral justification can be assessed, in part, based on the extent to which its many normative commitments are mutually supportive and free from dissonance; that is, on the ability to establish narrow reflective equilibrium across the normative content of a priority-setter’s policy and practice. While we do not suggest that the establishment of such equilibrium is sufficient for moral justification, we argue that failure to do so might—like the proverbial canary in the coalmine—act as a generalised warning that something is awry. We offer a theoretical argument in support of this view and briefly outline a practical method for systematically examining coherence across priority-setting policy and practice. (shrink)

Background As the UK’s main healthcare priority-setter, the National Institute for Health and Care Excellence (NICE) has good reason to want to demonstrate that its decisions are morally justified. In doing so, it has tended to rely on the moral plausibility of its principle of cost-effectiveness and the assertion that it has adopted a fair procedure. But neither approach provides wholly satisfactory grounds for morally defending NICE’s decisions. In this study we adopt a complementary approach, based on the proposition that (...) a priority-setter's claim to moral justification can be assessed, in part, based on the coherence of its approach and that the reliability of any such claim is undermined by the presence of dissonance within its moral system. This study is the first to empirically assess the coherence of NICE’s formal approach and in doing so to generate evidence-based conclusions about the extent to which this approach is morally justified. Methods The study is grounded in the theory, methods and standards of empirical bioethics. Twenty NICE policy documents were coded to identify and classify the normative commitments contained within NICE technology appraisal policy as of 31 December 2021. Coherence was systematically assessed by attempting to bring these commitments into narrow reflective equilibrium (NRE) and by identifying sources of dissonance. Findings Much of NICE policy rests on coherent values that provide a strong foundation for morally justified decision-making. However, NICE’s formal approach also contains several instances of dissonance which undermine coherence and prevent NRE from being fully established. Dissonance arises primarily from four sources: i) NICE’s specification of the principle of cost-effectiveness; ii) its approach to prioritising the needs of particular groups; iii) its conception of reasonableness in the context of uncertainty, and iv) its concern for innovation as an independent value. Conclusion At the time of analysis, the level of coherence across NICE policy provides reason to question the extent to which its formal approach to technology appraisal is morally justified. Some thoughts are offered on why, given these findings, NICE has been able to maintain its legitimacy as a healthcare priority-setter and on what could be done to enhance coherence. (shrink)

This open access book provides the first explicit case study for an application of the method of reflective equilibrium (RE), using it to develop and defend a precautionary principle. It thereby makes an important and original contribution to questions of philosophical method and methodology. The book shows step-by-step how RE is applied, and develops a methodological framework which will be useful for everyone who wishes to use reflective equilibrium. With respect to precautionary principles, the book demonstrates how a rights-based precautionary (...) principle can be constructed and defended. The case study succeeds in demonstrating that RE can be successfully applied and puts real constraints on the justification process. This is all the more remarkable as the case study was designed as an open-ended process, without presupposing any specific results. This book will be highly relevant both to people interested in philosophical methodology and epistemology, as well as to researchers who are interested in using philosophical methods and tools and applying them to practical problems. (shrink)

Foot , Hursthouse , and Thompson , along with other philosophers, have argued for a metaethical position, the natural goodness approach, that claims moral judgments are, or are on a par with, teleological claims made in the biological sciences. Specifically, an organism’s flourishing is characterized by how well they function as specified by the species to which they belong. In this essay, I first sketch the Neo-Aristotelian natural goodness approach. Second, I argue that critics who claim that this sort of (...) approach is inconsistent with evolutionary biology due to its species essentialism are incorrect. Third, I contend that combining the natural goodness account of natural-historical judgments with our best account of natural normativity, the selected effects theory of function, leads to implausible moral judgments. This is so if selected effects function are understood in terms of evolution by natural selection, but also if they are characterized in terms of cultural evolution. Thus, I conclude that proponents of the natural goodness approach must either embrace non-naturalistic vitalism or troubling moral revisionism. (shrink)

Is it permissible to kill an innocent person against her will in order to prevent several other innocent persons from being killed against their will? The answer to which this essay comes after extensive discussion is – under certain conditions and limitations – affirmative. On the way to this answer, the book offers a comprehensive in-depth discussion of so-called deontic restrictions – that is, the idea of an action’s being prohibited in circumstances in which performing it once would be the (...) only way to prevent its being performed multiple times. The book’s leading question is whether there is a plausible rationale for deontic restrictions. To this effect, a taxonomy and critical discussions of the most important approaches to justify deontic restrictions are provided – where many of these approaches undergo a deeper examination for the first time ever. In addition, the book clarifies some adjoining questions, such as why deontic restrictions are often perceived as being problematic or how the concept of agent-relativity should best be understood and formalized. Put into broader perspective, the conclusions offered should have a bearing on a number of debates in normative ethics, not least on the debate between deontologists and consequentialist. (shrink)

(Please note: the main ideas of this paper are restated in revised/developed form in: "On actualist and fundamental public justification in political liberalism" and "Patterns of justification: on political liberalism and the primacy of public justification". Both papers are available from philpapers.) The paper suggests the deep view of Rawls-type public justification as promising, non-ideal theory variant of an internal conception of political liberalism. To this end, I demonstrate how the deep view integrates a range of ideas, views and commitments (...) at the core of political liberalism’s justification structure, including pro tanto justification, full justification, political values and their priority, justificatory neutrality, the role of reasonable comprehensive views, the nature public reasons, the wide view of public political culture, the role of overlapping consensus and political legitimacy, and not least, the status of reflective equilibrium and the Original Position. I then contrast the deep view with Quong’s ideal theory variant if the internal conception, and argue that we should prefer the deep view. Thus, the prospects of political liberalism depend not so much on whether we find ways to make ideal theory relevant for non-ideal purposes. Rather, it depends on whether political liberalism can devise a credible response to the problem of public dogma. (shrink)

Despite increased philosophical and psychological work on practical wisdom, contemporary interdisciplinary wisdom research provides few specifics about how to develop wisdom (Kristjánsson 2022). This lack of practically useful guidance is due in part to the difficulty of determining how to combine the tools of philosophy and psychology to develop a plausible account of wisdom as a prescriptive ideal. Modeling wisdom on more ordinary forms of expertise is promising, but skill models of wisdom (Annas 2011; De Caro et al. 2018; Swartwood (...) 2013b; Tsai 2023) have been challenged on the grounds that there are important differences between wisdom and expert skills (Hacker-Wright 2015, p. 986; Kristjánsson 2015, pp. 98, 101; Stichter 2015, 2016, 2018). I’ll argue that we can both vindicate the promise of skill models of wisdom and begin to specify practically useful strategies for wisdom development by attending to a reflective process that I call Case-Based Critical Reflection. I begin by demonstrating the process as it arose in a notable example from everyday life, illustrating how the process can be usefully applied to a case study of interest to wisdom scientists, and explaining its philosophical pedigree. After isolating the key features that make it relevant to wisdom development, I argue that attending to the importance of Critical Reflection can defuse prominent objections to skill models of wisdom. (shrink)

Despite the rapidly growing literature on realism, there’s little discussion of the ideology critique of John Rawls offered by one of its leading lights, Raymond Geuss. There is little understanding of what (most of) this critique consists in and few discussions of how Rawls’ approach to political theorising may be defended against it. To remedy this situation, this article reconstructs the realist ideology critique of Rawls advanced by Raymond Geuss, which has three prongs: (1) Rawls’ political theory offers insufficient tools (...) to uncover and address distortions of our political values, beliefs, and intuitions; (2) it unacceptably reinforces these distortions by unduly legitimating them; and (3) it diverts attention from important features of real politics. With this done, I finish by considering how Rawlsians can respond, chiefly by employing a kind of reflective equilibrium, or reflective endorsement, broad enough to encompass different forms of genealogy and ideology critique. (shrink)

In this article, we develop an approach for the moral assessment of research and development networks on the basis of the reflective equilibrium approach proposed by Rawls and Daniels. The reflective equilibrium approach aims at coherence between moral judgments, principles, and background theories. We use this approach because it takes seriously the moral judgments of the actors involved in R & D, whereas it also leaves room for critical reflection about these judgments. It is shown that two norms, namely reflective (...) learning and openness and inclusiveness, which are used in the literature on policy and technological networks, contribute to achieving a justified overlapping consensus. We apply the approach to a case study about the development of an innovative sewage treatment technology and show how in this case the two norms are or could be instrumental in achieving a justified overlapping consensus on relevant moral issues. (shrink)

Meta-ethics without normative ethics is empty. In the current climate this hardly needs emphasis: since 1960 or so philosophers in the English-speaking world have put away their earlier reluctance to think about substantive moral issues. For a while, in fact, it seemed that normative ethics would completely dominate the scene in the way metaethics once did, but, happily, this situation has begun to change with the appearance of a stimulating and illuminating body of work on the rational basis of morality. (...) Even those philosophers most intent on solving first-order moral problems have begun to realize that, in the last analysis, normative ethics without meta-ethics is blind. (shrink)

Journal of Social Philosophy, Volume 52, Issue 3, Page 344-361, Fall 2021.

Many philosophers hold that punishment has an expressive dimension. Advocates of expressive theories have different views about what makes punishment expressive, what kinds of mental states and what kinds of claims are, or legitimately can be expressed in punishment, and to what kind of audience or recipients, if any, punishment might express whatever it expresses. I shall argue that in order to assess the plausibility of an expressivist approach to justifying punishment we need to pay careful attention to whether the (...) things which punishment is supposed to express are aimed at an audience. For the ability of any version of expressivism to withstand two important challenges, which I call the harsh treatment challenge’ and the ‘publicity challenge’ respectively. will depend on the way it answers them. The first of these challenges has received considerable discussion in the literature on expressive theories of punishment; the second considerably less. This is unfortunate. For careful consideration of the publicity challenge should lead us to favor a version of the expressive theory which has been under-discussed: the view on which punishment has an intended audience, and on which the audience is society at large, rather than—as on the most popular version of that view—the criminal. Furthermore, this view turns out to be better equipped to meet the harsh treatment challenge, and to be so precisely because of the way in which it meets the publicity challenge. (shrink)

In this paper I discuss a number of different relationships between two kinds of obligation: those which have individuals as their subject, and those which have groups of individuals as their subject. I use the name collective obligations to refer to obligations of the second sort. I argue that there are collective obligations, in this sense; that such obligations can give rise to and explain obligations which fall on individuals; that because of these facts collective obligations are not simply reducible (...) to individual obligations; and that collective obligations supervene on individual obligations, without being reducible to them. The sort of supervenience I have in mind here is what is sometimes called ‘global supervenience’. In other words, there cannot be two worlds which differ in respect of the collective obligations which exist in them without also differing in respect of the individual obligations which exist in them. (shrink)

A clinical ethics fit for the Anthropocene—our current geological era in which human activity is the primary determinant of environmental change—needs to incorporate environmental ethics to be fit for clinical practice. Conservationist Aldo Leopold’s essay ‘The Land Ethic’ is probably the most widely-cited source in environmental philosophy; but Leopold’s work, and environmental ethics generally, has made little impression on clinical ethics. The Land Ethic holds that “A thing is right when it tends to preserve the integrity, stability, and beauty of (...) the biotic community. It is wrong when it tends otherwise.” I argue that a Land Ethic helps to re-frame problems in clinical ethics that more common philosophical approaches struggle to handle, and that it can be incorporated into clinical ethics without succumbing to “environmental fascism”. I motivate viewing problems in clinical ethics from the perspective of the ‘integrity of the biotic community’, then illustrate how this perspective can offer guidance where more commonly-invoked theories—such as consequentialism and Kantian-inspired approaches—struggle, using antimicrobial resistance in nosocomial infection as a case study. The Land Ethic equips us to understand human values as arising within and inseparable from a social-ecological context, and by treating communities as valuable in themselves rather than just through the aggregate welfare of their individual participants, we can avoid problems with the ‘repugnant conclusion’ and utility monster that plague utilitarian accounts. (shrink)

The use of empirical research methods in bioethics has been increasing in the last decades. It has resulted in discussions about the ‘empirical turn of bioethics’ and raised questions related to the value of empirical work for this field, methodological questions about its quality and rigor, and how this integration of the normative and the empirical can be achieved. The aim of this paper is to describe the attitudes of bioethics researchers in this field towards the use of empirical research, (...) and examine their actual conduct: whether they use empirical research methods, and whether they have made attempts at integrating the empirical and the normative. An anonymous online survey was conducted to reach scholars working in bioethics/biomedical ethics/ethics institutes or centers in 12 European countries. A total of 225 bioethics researchers participated in the study. Of those, 200 questionnaires were fully completed, representing a response rate of 42.6%. The results were analysed using descriptive statistics. Most respondents indicated that they use or have used empirical methods in their work. A similar proportion of respondents reported having had at least some training in qualitative or quantitative methods, respectively. Among the ‘empirical researchers’, more than a fifth had not received any methodological training. It appears that only 6% or less of the ‘empirical researchers’ considered themselves experts in the methods that they have used. Only 35% of the scholars who have used empirical methods reported having integrated empirical data with normative analysis, whereas for their current projects, 59.8% plan to do so. There is a need to evaluate the current educational programs in bioethics and to implement rigorous training in empirical research methods to ensure that ‘empirical researchers’ have the necessary skills to conduct their empirical research in bioethics. Also imperative is clear guidance on the integration of the normative and the empirical so that researchers who plan to do so have necessary tools and competences to fulfil their goals. (shrink)

The integration of normative analysis with empirical data often remains unclear despite the availability of many empirical bioethics methodologies. This paper sought bioethics scholars’ experiences and reflections of doing empirical bioethics research to feed these practical insights into the debate on methods. We interviewed twenty-six participants who revealed their process of integrating the normative and the empirical. From the analysis of the data, we first used the themes to identify the methodological content. That is, we show participants’ use of familiar (...) methods explained as “back-and-forth” methods (reflective equilibrium), followed by dialogical methods where collaboration was seen as a better way of doing integration. Thereafter, we highlight methods that were deemed as inherent integration approaches, where the normative and the empirical were intertwined from the start of the research project. Second, we used the themes to express not only how we interpreted what was said but also how things were said. In this, we describe an air of uncertainty and overall vagueness that surrounded the above methods. We conclude that the indeterminacy of integration methods is a double-edged sword. It allows for flexibility but also risks obscuring a lack of understanding of the theoretical-methodological underpinnings of empirical bioethics research methods. (shrink)

It is plausible that what possible courses of action patients may legitimately expect their physicians to take is ultimately determined by what medicine as a profession is supposed to do and, consequently, that we can determine the moral acceptability of voluntary euthanasia and physician-assisted suicide on the basis of identifying the proper goals of medicine. This article examines the main ways of defining the proper goals of medicine found in the recent bioethics literature and argues that they cannot provide a (...) clear answer to the question of whether or not voluntary euthanasia and physician-assisted suicide are morally acceptable. It is suggested that to find a plausible answer to this question and to complete the task of defining the proper goals of medicine, we must determine what is the best philosophical theory about the nature of prudential value. (shrink)

A moral problem arises when a patient refuses a treatment that would save her life. Should the patient be treated against her will? According to an influential approach to questions of biomedical ethics, certain considerations pertaining to individual autonomy provide a solution to this problem. According to this approach, we should respect the patient’s autonomy and, since she has made an autonomous decision against accepting the treatment, she should not be treated. This article argues against the view that our answer (...) to the question of whether or not the refusing patient ought to be treated should be based on these kinds of considerations pertaining to individual autonomy and maintains that finding a plausible answer to this question presupposes that we resolve questions concerning subjectivity and objectivity of individual wellbeing. (shrink)

A recurrent issue in the vast amount of literature on reasoning models in ethics is the role and nature of moral intuitions. In this paper, we start from the view that people who work and live in a certain moral practice usually possess specific moral wisdom. If we manage to incorporate their moral intuitions in ethical reasoning, we can arrive at judgements and (modest) theories that grasp a moral experience that generally cannot be found outside the practice. Reflective equilibrium (RE) (...) provides a framework for balancing moral intuitions, ethical principles and general theories. Nevertheless, persisting problems associated with the use of intuitions need to be addressed. One is the objection that moral intuitions lack the credibility necessary to guide moral reasoning. Ethicists have tried to solve this problem by formulating criteria to separate the “bad” intuitions from the “good” ones at the beginning of the reasoning process. We call this the credible input-justified outcome strategy. An example is the appeal to the common morality by Beauchamp and Childress. We think this approach is unsuccessful. As an alternative, we outline the good reasoning-justified outcome strategy. It connects to a variant of RE in which intuitions from different sources are incorporated. We argue that the elements of RE have different levels of justificatory power at the start of reasoning. In our strategy, each element can gain or lose justificatory power when it is tested in a reasoning process that meets several criteria. (shrink)

Arriving at a moral judgment is not a straightforward or linear process in which ethical theories are simply applied to cases. Instead it is a process in which the formulation of the moral problem, the formulation of possible “solutions”, and the ethical judging of these solutions go hand in hand. This messy character of moral problems, however, does not rule out a systematic approach. In this article, we describe a systematic approach to problem solving that does justice to the complex (...) nature of moral problems and ethical judgment: the ethical cycle. Our goal is to provide a structured and disciplined method of addressing moral problems, which helps to guide a sound analysis of these problems. We will illustrate the usefulness of this cycle with an example. Further, we will discuss two general issues in applied ethics in relation to the proposed ethical cycle: the role of ethical theories and the place of individual judgment versus collective deliberation. (shrink)

Can judging that an agent blamelessly broke a rule lead us to claim, paradoxically, that no rule was broken at all? Surprisingly, it can. Across seven experiments, we document and explain the phenomenon of excuse validation. We found when an agent blamelessly breaks a rule, it significantly distorts people’s description of the agent’s conduct. Roughly half of people deny that a rule was broken. The results suggest that people engage in excuse validation in order to avoid indirectly blaming others for (...) blameless transgressions. Excuse validation has implications for recent debates in normative ethics, epistemology and the philosophy of language. These debates have featured thought experiments perfectly designed to trigger excuse validation, inhibiting progress in these areas. (shrink)

Well-being in the broadest sense is what we have when we are living lives that are not necessarily morally good, but good for us. In philosophy, well-being has been an important topic of inquiry for millennia. In psychology, well-being as a topic has been gathering steam very recently and this research is now at a stage that warrants the attention of philosophers. The most popular theories of well-being in the two fields are similar enough to suggest the possibility of interdisciplinary (...) collaboration. In this essay I provide an overview of three of the main questions that arise from psychologists’ work on well-being, and highlight areas that invite philosophical input. Those questions center on the nature, measurement, and moral significance of well-being. I also argue that the life-satisfaction theory is particularly well suited to meet the various demands on a theory of well-being. (shrink)

Extensive discussions of practical wisdom are relatively rare in the philosophical literature these days. This is strange given the theoretical and practical importance of wisdom and, indeed, the etymology of the word "philosophy." In this paper, we remedy this inattention by proposing a methodology for developing a theory of wisdom and using this methodology to outline a viable theory. The methodology we favor is a version of wide reflective equilibrium. We begin with psychological research on folk intuitions about wisdom, which (...) helps us to avoid problems caused by reliance on the possibly idiosyncratic intuitions of professional philosophers. The folk theory is then elaborated in light of theoretical desiderata and further empirical research on human cognitive capacities. The resulting view emphasizes policies that the wise person adopts in order to cope with the many obstacles to making good choices. (shrink)

In this paper I argue that the debate between subjective and objective theories of prudential value obscures the way in which elements of both are needed for a comprehensive theory of prudential value. I suggest that we characterize these two types of theory in terms of their different aims: procedural (or subjective) theories give an account of the necessary conditions for something to count as good for a person, while substantive (or objective) theories give an account of what is good (...) for a person, given some set of necessary conditions. Characterizing the theories in this way allows us to see their mutual compatibility. To make this case, I assume that a theory of prudential value ought to be descriptively and normatively adequate. The criterion of descriptive adequacy requires that our theory explain the subject relativity of prudential value. I characterize subject relativity in terms of justifiability to subjects and I argue that certain procedural theories are well suited to meet this criterion. The criterion of normative adequacy requires that our theory be capable of guiding action and I argue that a certain kind of substantive theory is needed to meet this requirement. (shrink)

The aim of this paper is to describe a methodology for revising logical principles in the light of empirical psychological findings. Historical philosophy of science and wide reflective equilibrium in ethics are considered as providing possible models for arguing from the descriptive to the normative. Neither is adequate for the psychology/logic case, and a new model is constructed, employing criteria for evaluating inferential systems. Once we have such criteria, the notion of reflective equilibrium becomes redundant.

This paper explores the ethical relevance of a precise new characterization of coherence as maximization of satisfaction of positive and negative constraints. A coherence problem can be stated by specifying a set of elements to be accepted or rejected along with sets of positive and negative constraints that incline pairs of elements to be accepted together or rejected together. Computationally tractable and psychologically plausible algorithms are available for determining the acceptance and rejection of elements in a way that reliably approximates (...) coherence maximization. This paper shows how justification of ethical principles and particular judgments can be accomplished by taking into account deductive, explanatory, analogical, and deliberative coherence. (shrink)

This paper provides a computational characterization of coherence that applies to a wide range of philosophical problems and psychological phenomena. Maximizing coherence is a matter of maximizing satisfaction of a set of positive and negative constraints. After comparing five algorithms for maximizing coherence, we show how our characterization of coherence overcomes traditional philosophical objections about circularity and truth.