The “puzzle of the unmarked clock” derives from a conflict between the following: (1) a plausible principle of epistemic modesty, and (2) “Rational Reflection”, a principle saying how one’s beliefs about what it is rational to believe constrain the rest of one’s beliefs. An independently motivated improvement to Rational Reflection preserves its spirit while resolving the conflict.

This article shows that there is a liar-like paradox that arises for rational credence that relies only on very weak logical and credal principles. The paradox depends on a weak rational reflection principle, logical principles governing conjunction, and principles governing the relationship between rational credence and proof. To respond to this paradox, we must either reject even very weak rational reflection principles or reject some highly plausible logical or credal principle.

Numerous authors have defended the rough idea that it is irrational to fail to conform to one’s judgments about what it would be rational to do, or what doxastic states it would be rational to be in. This chapter examines rational reflection principles as an attempt to implement this idea in contexts of uncertainty about what credence distributions are rational. After outlining some problems with Old Rational Reflection, the chapter discusses what seems like (...) a well-motivated fix, New Rational Reflection. It is argued that an intuitive way of trying to motivate the principle fails, and that it faces counterexamples. To say the least, the principle imposes substantial and controversial constraints on the kinds of epistemic situations it is possible to be in. A more general problem is that rational reflection principles seem doomed to take seriously certain kinds of uncertainty about what is rational, but not others. (shrink)

This paper explores an initially attractive principle connecting beliefs in general with beliefs about what beliefs are rational. The principle turns out to be violated by intuitively rational beliefs in some situations. The paper lays out some options for reacting to this fact.

First, Mahtani argues that both in the game The Mug and in the Sleeping Beauty we should not defer to a trusted person under a particular designation if they do not self-identify under this designation. This invites a more complex Reflection Principle. I respond that there are more parsimonious ways to avoid the challenges posed to the Reflection Principle. Second, Mahtani argues that preferences create a hyperintensional context, which poses a challenge to the Ex-Ante Pareto (...) class='Hi'>Principle that can be averted by supervaluation. I respond that such an appeal to supervaluation would block randomization as a fair allocation device. (shrink)

Are there plausible synchronic constraints on how a subject thinks of herself extended over time? At first glance, Bas van Fraassen’s principle of Reflection seems to prescribe the sort of epistemic authority one’s future self should be taken by one to have over one’s current epistemic states. (The gist of this principle is that I should now believe what I’m convinced I will believe tomorrow.) There has been a general consensus that, as a principle concerning epistemic (...) authority, Reflection does not apply to epistemically non-ideal agents. I agree with this, but argue here that it misses the point of Reflection. Rather than an epistemic principle concerning reasons for belief, Reflection concerns the semantics of belief avowal. I present a non-factual interpretation of Reflection, argue that the principle provides a constraint on the ways in which one can reflectively endorse one’s future epistemic self, and say something about the logic governing such an interpretation. (shrink)

One recent topic of debate in Bayesian epistemology has been the question of whether imprecise credences can be rational. I argue that one account of imprecise credences, the orthodox treatment as defended by James M. Joyce, is untenable. Despite Joyce’s claims to the contrary, a puzzle introduced by Roger White shows that the orthodox account, when paired with Bas C. van Fraassen’s Reflection Principle, can lead to inconsistent beliefs. Proponents of imprecise credences, then, must either provide a (...) compelling reason to reject Reflection or admit that the rational credences in White’s case are precise. (shrink)

Cohen (1981) and others have made an interesting argument for the thesis that humans are rational: normative principles of reasoning and actual human reasoning ability cannot diverge because both are determined by the same process involving our intuitions about what constitutes good reasoning as a starting point. Perhaps the most sophisticated version of this argument sees reflective equilibrium as the process that determines both what the norms of reasoning are and what actual cognitive competence is. In this essay, I (...) will evaluate both the general argument that humans are rational and the reflective equilibrium argument for the same thesis. While I find both accounts initially appealing, I will argue that neither successfully establishes that humans are rational. (shrink)

The much-debated Reflection principle states that a coherent agent’s cre- dences must match their estimates for their future credences. Defenders claim that there are Dutch-book arguments in its favor, putting it on the same normative footing as probabilistic coherence. Critics claim that those arguments rely on the implicit, implausible assumption that the agent is introspective: that they are certain what their own credences are. In this paper, we clarify this debate by surveying several different concep- tions of the (...) book scenario. We show that the crucial disagreement hinges on whether agents who are not introspective are known to reliably act on their credences: if they are, then coherent Reflection failures are (at best) ephemeral; if they aren’t, then Reflection failures can be robust— and perhaps rational and coherent. We argue that the crucial question for future debates is which notion of coherence makes sense for such unreliable agents, and sketch a few avenues to explore. (shrink)

One prominent view in recent literature on resource allocation is Persad, Emanuel and Wertheimer’s complete lives framework for the rationing of lifesaving healthcare interventions (CLF). CLF states that we should prioritise the needs of individuals who have had less opportunity to experience the events that characterise a complete life. Persadet alargue that their system is the product of a successful process of reflective equilibrium—a philosophical methodology whereby theories, principles and considered judgements are balanced with each other and revised until we (...) achieve an acceptable coherence between our various beliefs. Yet I argue that many of the principles and intuitions underpinning CLF conflict with each other, and that Persadet alhave failed to achieve an acceptable coherence between them. I focus on three tensions in particular: the conflict between the youngest first principle and Persadet al’s investment refinement; the conflict between current medical need and a concern for lifetime equality; and the tension between adopting an objective measure of complete lives and accommodating for differences in life narratives. (shrink)

How far, if at all, do our intrapersonal and our interpersonal epistemic obligations run in parallel? This paper treats the question as addressing the stability of doxastic commitment in the two dimensions. In the background lies an analogy between doxastic and practical commitment. We’ll pursue the question of doxastic stability by coining a doxastic analogue of Gregory Kavka’s much-discussed toxin case. In this new case, you foresee that you will rationally abandon a doxastic commitment by undergoing a shift in the (...) context in which you doxastically deliberate. The case reveals an important stability condition on doxastic commitment that plays no role in cases modeled on Ulysses and the Sirens, the scenario that has shaped previous attempts to draw an analogy between doxastic and practical commitment. The stability condition thereby revealed is not diachronic -- it does not involve a shift in belief -- but we can construct specifically diachronic cases that reveal an important intrapersonal epistemic obligation. This obligation arises when you expect the shift in belief by ‘projecting’ yourself into a future doxastic context -- thus vindicating a restricted, but only this restricted, application of Bas van Fraassen’s Reflection Principle. Despite some important differences, we can use these diachronic cases as a model for interpersonal cases that reveal an important role for doxastic context in the epistemology of disagreement. But the roles played by projection and context in disagreement ensure that there is no general obligation to be responsive to the opinion of an epistemic peer who disagrees with you. (shrink)

I provide a taxonomy of the various circumstances under which one might reasonably say "P and I will believe that not-P" or violate the Reflection Principle.

While Rational Choice Theory (RC) may be understood as a theory of choice, which does not necessarily reflect actual deliberative processes, rule-following behavior is definitely based on a certain form of delibera- tion. This article aims at clarifying the relationship between the two. Being guided by instrumental rules, i.e., rules reducible to the maximiza- tion principle, is perfectly consistent with the fundamental behavioral assumptions of RC. But human individuals use other forms of rules in decision making, especially tie-breaking (...) rules and coordination rules. It is argued that within RC no satisfying account of such rule-following behav- ior can be given. In particular it is impossible to determine suitable pref- erence orderings such that coordinating may be understood as maximizing relative to these orderings. Still, once there is coordination, following a coordination rule may be perfectly consistent with the basic assumptions of RC. So there might be a more complex theory of action that incorpo- rates RC as well as a satisfying theory of rule-guided behavior. (shrink)

We discuss the cable guy paradox, both as an object of interest in its own right and as something which can be used to illuminate certain issues in the theories of rational choice and belief. We argue that a crucial principle—The Avoid Certain Frustration (ACF) principle—which is used in stating the paradox is false, thus resolving the paradox. We also explain how the paradox gives us new insight into issues related to the Reflection principle. Our (...) general thesis is that principles that base your current opinions on your current opinions about your future opinions need not make reference to the particular times in the future at which you believe you will have those opinions, but they do need to make reference to the particular degrees of belief you believe you will have in the future. (shrink)

I advocate Time-Slice Rationality, the thesis that the relationship between two time-slices of the same person is not importantly different, for purposes of rational evaluation, from the relationship between time-slices of distinct persons. The locus of rationality, so to speak, is the time-slice rather than the temporally extended agent. This claim is motivated by consideration of puzzle cases for personal identity over time and by a very moderate form of internalism about rationality. Time-Slice Rationality conflicts with two proposed principles (...) of rationality, Conditionalization and Reflection. Conditionalization is a diachronic norm saying how your current degrees of belief should fit with your old ones, while Reflection is a norm enjoining you to defer to the degrees of belief that you expect to have in the future. But they are independently problematic and should be replaced by improved, time-slice-centric principles. Conditionalization should be replaced by a synchronic norm saying what degrees of belief you ought to have given your current evidence and Reflection should be replaced by a norm which instructs you to defer to the degrees of belief of agents you take to be experts. These replacement principles do all the work that the old principles were supposed to do while avoiding their problems. In this way, Time-Slice Rationality puts the theory of rationality on firmer foundations and yields better norms than alternative, non-time-slice-centric approaches. (shrink)

Conceptual understanding is essential to learn physics principles, for this it is advisable to develop a method of thinking. The Case Method can develop it hence the objectives of research: test the viability of implementing Rational Thought and the Case Metod in classrooms and answer the questions: how does rational thought modify in students conceptualization? and how the Case Method modifies their thinking scheme for learning disciplinary principles? The first stage consisted of theoretically basing classical pedagogy, with the (...) rational thought of ancient Greece and its derivation in scientific thought. For test design, an interaction matrix is proposed to order and interpret data that reflect the level of conceptualization, according to types of structured thought: logical, methodical and narrative; For each type of thought, dimensions of content, purpose and structure are evaluated. In the second stage implement the method with the IGBE model imply: individual activity, Case reading; focus group; plenary; anecdotal log; evaluation judges dimensions understanding; diagnostic surveys and verification of experimental and control groups. The results of first stage: methodological, theoretical and test design foundations were achieved supported by preliminary conclusions. Secondly when implementing the method, the judges evaluated plenary discussion with high levels of understanding. When evaluating logs, the results showed medium and high levels. When implementing diagnostic surveys, similar levels of preconceptions were observed in both groups. When comparing results from verification surveys, higher levels of understanding were observed in the experimental group than in the control group; The method favorably impacts understanding through dialogic socialization. (shrink)

There is a tension between normative and descriptive elements in the theory of rational belief. This tension has been reflected in work in psychology and decision theory as well as in philosophy. Canons of rationality should be tailored to what is humanly feasible. But rationality has normative content as well as descriptive content.A number of issues related to both deductive and inductive logic can be raised. Are there full beliefs – statements that are categorically accepted? Should statements be accepted (...) when they become overwhelmingly probable? What is the structure imposed on these beliefs by rationality? Are they consistent? Are they deductively closed? What parameters, if any, does rational acceptance depend on? How can accepted statements come to be rejected on new evidenceShould degrees of belief satisfy the probability calculus? Does conformity to the probability calculus exhaust the rational constraints that can be imposed on partial beliefs? With the acquisition of new evidence, should beliefs change in accord with Bayes' theorem? Are decisions made in accord with the principle of maximizing expected utility? Should they be?A systematic set of answers to these questions is developed on the basis of a probabilistic rule of acceptance and a conception of interval-valued logical probability according to which probabilities are based onknownfrequencies. This leads to limited deductive closure, a demand for only limited consistency, and the rejection of Bayes' theorem as universally applicable to changes of belief. It also becomes possible, given new evidence, to reject previously accepted statements. (shrink)

Can posthumous love be rationally comprehensible for us to talk about? In this research article, I look into some Renaissance writings on Christian ethics that talk about posthumous love as if there are some virtues in it that deserve to be praised. I try to show that the most notable virtues that can be seen in posthumous love are honesty in love as well as the intention to keep a promise to cherish the eternal love in married couples even after (...) their death. If it is accepted that posthumous love is considered a morally rational virtue for these Renaissance Christian writers, there will still be a question, namely, on what criterion it should be based for us to talk about that promise. In this article, I show that the reverence of true love and faithfulness in love can be found in medieval Christian and Renaissance philosophy throughout Christian theological writings, especially in Robert Grosseteste’s notion of caritas. Next, I argue, based on Nicholas Rescher’s definition of rationality as human resource and Huw Price’s anthropological explanative power of concepts, that keeping a promise of posthumous love is a rational virtue. My argument is based on an idea that rationality is durable. This is because, as I will also argue, love is invincible. durability thesis of rationality reflected in the invincibility-of-love thesis through Rescher’s erotetic principle in metaphysical questioning strengthened with Price’s respond-dependence. (shrink)

Can posthumous love be rationally comprehensible for us to talk about? In this research article, I look into some Renaissance writings on Christian ethics that talk about posthumous love as if there are some virtues in it that deserve to be praised. I try to show that the most notable virtues that can be seen in posthumous love are honesty in love as well as the intention to keep a promise to cherish the eternal love in married couples even after (...) their death. If it is accepted that posthumous love is considered a morally rational virtue for these Renaissance Christian writers, there will still be a question, namely, on what criterion it should be based for us to talk about that promise. In this article, I show that the reverence of true love and faithfulness in love can be found in medieval Christian and Renaissance philosophy throughout Christian theological writings, especially in Robert Grosseteste’s notion of caritas. Next, I argue, based on Nicholas Rescher’s definition of rationality as human resource and Huw Price’s anthropological explanative power of concepts, that keeping a promise of posthumous love is a rational virtue. My argument is based on an idea that rationality is durable. This is because, as I will also argue, love is invincible. durability thesis of rationality reflected in the invincibility-of-love thesis through Rescher’s erotetic principle in metaphysical questioning strengthened with Price’s respond-dependence. (shrink)

The subject of my dissertation is "rationality". In this book I undertake a comprehensive, systematic and independent treatment of the problem of rationality. This furthers progress toward a general theory of rationality, one that represents and defends a uniform conception of reason. The structure and general outline are as follows: Part I: General Definition of the Concept; Part II: Rationality in the Theoretical Realm; Part III: Rationality in the Practical Realm (parts II and III are divided respectively into A. Relative (...) Reasons and B. Absolute Reasons); Part IV: Grounds for the Principle of Reason. My aim in this work is to prove that a conception of rationality as justification of our usage of language is more significant than has been classically recognized, without, however, reducing the concept of rationality. After a definition of the term is provided in the first chapter by means of language analysis, the following three questions are dealt with in the subsequent chapters: a) Exhaustion of rationality in relative reasons—i.e., is reasoning exhausted by reference to existing views and goals, or does rationality also exist in a strong sense? The latter would be the case if the views and goals referred to the relative conception must themselves be justified de novo. I argue that such an absolute justification of views and goals cannot be provided. To this end, in the theoretical domain, I discuss a question prominent in the debate over the rationality of worldviews, namely the question of whether the standards of theoretical rationality are merely culturally relative (chapter V.). Here I arrive at the position that standards of theoretical rationality are only transcultural insofar as there are goals which are not themselves culturally-dependent. With regard to practically fundamental goals, the core standards of modern science can be justified. This justification strategy therefore requires that such goals be established. In practical terms, first I address (in Chapter VII) the so-called "final justification" of norms problem. Here I discuss above all the transcendental-pragmatic proposal and the contractualist conception. According to my view, neither succeed in providing a final rational grounding for norms. That grounding pertains instead to the rationale for objectives, and Chapter VIII demonstrates that even a final justification of objectives is impossible. This does not mean, however, that a person's goals cannot be criticized as irrational. But the warrant in this case depends on the rules that govern the genesis of desires being accepted by the subject. b) If substantive rationality does not exist because no absolute grounding for opinions and goals can obtain, then the question of how strong or weak the concept of rationality is acquires further weight. On that basis, relative theoretical and practical rationality is examined in detail. I aim with this analysis of (relative) rationality to apprehend the structural parallelism between rationality in both the practical and the theoretical domain, and therefore to defend a uniform conception of reason or rationality. This is accomplished by identifying a concept that exhibits the same structure in both theoretical and practical domains: the term "rational" is applied to actions and opinions in order to claim, first of all, that they are "well-founded." For example, one must inquire into the precise rational justification for opinions or actions. To determine the individually necessary and jointly sufficient conditions required for an opinion or action to be rational, one must first provide a formal characterization of the rationality of those opinions or actions. What is to count as a rational ground can only be explained by formal procedures and results achievable via those procedures. To be more specific, I claim that the process of opinion formation and practical reflection is subject to rational justification based on internalist rules. The rules governing theoretical rationality can have their content transformed in a further move, if one takes the result of the process of rational opinion-formation as the product of an epistemological determination, that is, as a decision about which opinion to hold that is made on the basis of epistemological or prudential goals. Implicit in this position is the controversial idea that one can actually decide to believe something. The rules of practical reason are the rules that guide the rational selection of objectives and actions. The structural parallelism of theoretical and practical rationality consists, therefore, in the fact that both refer to mental processes that are controlled by rules which one freely accepts and follows. In both cases, these rules are to be understood as governing the rational choice of a mental or physical action. c) Therefore, the question of whether rationality—being rational—can in turn be grounded by reasons can be answered in the following way: The rules of rationality can only be justified with reference to a person’s goals, as the best strategy for achieving those goals. If someone does not desire the optimal realization of his goals, there is no other way of arguing directly for rationality. One can only attempt to demonstrate—if the person is open to argument—that it is typically in the person's own best interest to adhere to the rules of rationality. (shrink)

Predictable polarization is everywhere: we can often predict how people’s opinions, including our own, will shift over time. Extant theories either neglect the fact that we can predict our own polarization, or explain it through irrational mechanisms. They needn’t. Empirical studies suggest that polarization is predictable when evidence is ambiguous, that is, when the rational response is not obvious. I show how Bayesians should model such ambiguity and then prove that—assuming rational updates are those which obey the value (...) of evidence—ambiguity is necessary and sufficient for the rationality of predictable polarization. The main theoretical result is that there can be a series of such updates, each of which is individually expected to make you more accurate, but which together will predictably polarize you. Polarization results from asymmetric increases in accuracy. This mechanism is not only theoretically possible, but empirically plausible. I argue that cognitive search—searching a cognitively accessible space for a particular item—often yields asymmetrically ambiguous evidence, I present an experiment supporting its polarizing effects, and I use simulations to show how it can explain two of the core causes of polarization: confirmation bias and the group polarization effect. (shrink)

This article approaches the ethical dilemma of healthcare allocation and rationing from the perspective of pragmatist ethics, mainly following John Dewey’s ethics. The moral dilemma of healthcare allocation arises whenever we allocate limited resources, and rationing is a necessary option for distributing available resources. In a broader sense, the moral problems of healthcare allocation also encompass the issue of access to primary healthcare, especially for low-income sections of communities. In this sense, allocation always entails rationing – denying service to someone (...) for the benefit of others. Such aspects of allocation and rationing and the relational aspect of disease and health make the problem morally controversial, which makes it difficult to agree on a principle or principles of allocation and rationing applicable across different contexts. Hence, this paper argues that moral challenges of healthcare rationing ought not to be addressed through the appeal to principles, but rather through deliberation that embraces a more pragmatic and democratic approach to negotiating health resource allocation and rationing. However, this does not mean that moral principles and values are insignificant in healthcare allocation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Salomon Maimon: Rational Dogmatist, Empirical Skeptic: Critical AssessmentsDaniel BreazealeGideon Freudenthal, editor. Salomon Maimon: Rational Dogmatist, Empirical Skeptic: Critical Assessments. Dordrecht: Kluwer, 2003. pp vii + 304. Cloth, $135.00.This collection of previously unpublished essays on one of the more idiosyncratic and complex figures in the history of philosophy begins with a splendid introductory essay by the editor, "A Philosopher between Two Cultures," emphasizing the "inter-cultural" character of (...) Maimon's achievement and his position as an outsider with respect to both the traditional Jewish community and that of modern German philosophy, a position reflected in Maimon's strategy of advancing his systematic philosophy by means of eccentric "commentaries" on such authors as Maimonides, Newton, and Kant.Maimon's "dual cultural project" is also the theme of a fine essay by Yossif Schwartz, "Causa materialis: Solomon Maimon, Moses ben Maimon and the Possibility of Philosophical Transmission," which compares Maimon's effort to introduce his Hebrew readers to Kantian philosophy (in his commentary on The Guide of the Perplexed) and his German-language readers to Maimonides (in his Autobiography), in an effort to legitimize modern philosophy to his fellow Jews and Maimonides and the tradition of Jewish thought to his fellow philosophers. Schwartz illustrates this point with reference to the specific issue of God as "material cause" of the world.Several of the essays deal with the difficult but important theme of predication and with Maimon's central notion of the "principle of determinability," understood as the highest principle of all (real) synthetic judgments. Oded Schechter's "The Logic of Speculative Philosophy and Skepticism in Maimon's Philosophy: Satz der Bestimmbarkeit and the Role of Synthesis" analyzes this theme in considerable technical detail and relates it to Maimon's philosophy as a whole, and indeed to the "speculative logic" of Hegel and others. This is certainly one of the richest (as well as one of the more challenging) essays in the collection, containing illuminating discussions not only of the principle of determinability, but also of Maimon's highly original notions of "synthesis" and "construction." More accessible is Elhanan Yakira's "From Kant to Leibniz? Salomon Maimon and the Question of Predication," which not only clearly explains the principle in question but convincingly disputes the widespread view that this represents a return to Leibnizian rationalism on the part of Maimon.Maimon's poorly understood theory of "the differential" is the theme of the contribution by Michael Roubach, "Salomon Maimon's Philosophy and its Place in the Enlightenment: Wandering in the Land of Difference," which interprets this notion in the context of the difference between the finite and the infinite intellect and stresses the difference between Maimon's position and that of pre-Kantian rationalism. Unfortunately, Roubach's effort to clarify Maimon's position by comparing it to that of Giles Deleuze is too brief and obscure to be helpful.Though Maimon's relationship to Kant is at least touched on in almost every essay in this collection, it is the explicit theme of four of them, three of which dwell on Maimon's [End Page 119] so-called "quid facti" challenge to Kant's deduction of the categories. Peter Thielke's "Intuition and Diversity: Kant and Maimon on Space and Time" is a very long and philosophically sophisticated examination of Maimon's direct challenge to Kant's "discursivity thesis" regarding the heterogeneity of the faculties of sensibility and understanding. Thielke focuses on Kant's account of space and time as pure forms of intuition and contrasts this with what he calls Maimon's "neglected alternative," viz.: that space and time are not forms of intuition at all, but rather "forms of diversity" and hence features of the function of thinking. In order to explicate this difficult theory, Thielke offers an impressive reconstruction of Maimon's fiendishly obscure idea of the "differentials of pereption" and hence of the fundamentally productive character of the understanding. This provides the theoretical foundation for Maimon's non-dualistic account of the cognitive faculties and his non-causal account of the mind's passivity. Thielke concludes that Maimon's objections, if not sufficient to overturn the discursivity thesis, still undermine the evidence for the same... (shrink)

According to epistemological disjunctivism (ED), in paradigmatic cases of perceptual knowledge, a subject, S, has perceptual knowledge that p in virtue of being in possession of reasons for her belief that p which are both factive and reflectively accessible to S. It has been argued that ED is better placed than both knowledge internalism and knowledge externalism to undercut underdetermination-based skepticism. I identify several principles that must be true if ED is to be uniquely placed to attain this goal. After (...) that, I use those principles to formulate a diachronic skeptical argument. This argument yields the counterintuitive conclusion that understanding a global skeptical hypothesis is all it takes for a rational subject to lose all her perceptual knowledge of the world. Next, I show that a popular Austinian move must reject one or another of the principles that underlie ED. I close by delineating a novel strategy that can block the diachronic skeptical argument while preserving all the principles. The key idea is that perceptual knowledge is grounded in primitive, perceptual and recognitional abilities. This view sheds new light on some puzzling features of global skepticism that have been noted by Descartes and Hume, among others. (shrink)

This is an essay in the Bayesian theory of how opinions should be revised over time. It begins with a discussion of the principle that van Fraassen has dubbed "Reflection". This principle is not a requirement of rationality; a diachronic Dutch argument, that purports to show the contrary, is fallacious. But under suitable conditions, it is irrational to actually implement shifts in probability that violate Reflection. Conditionalization and probability kinematics are special cases of the principle (...) not to implement shifts that violate Reflection; hence these principles are also requirements of rationality under suitable conditions, though not universal requirements of rationality. (shrink)

How developing a more expansive, non-formal conception of reason produces richer ethical understandings of human situations, explored and illustrated with many real examples. In Re-Reasoning Ethics, Barry Hoffmaster and Cliff Hooker enhance and empower ethics by adopting a non-formal paradigm of rational deliberation as intelligent problem-solving and a complementary non-formal paradigm of ethical deliberation as problem-solving design to promote human flourishing. The non-formal conception of reason produces broader and richer ethical understandings of human situations, not the simple, constrained depictions (...) provided by moral theories and their logical applications in medical ethics and bioethics. Instead, it delivers and vindicates the moral judgment that complex, contextual, and dynamic situations require. Hoffmaster and Hooker demonstrate how this more expansive rationality operates with examples, first in science and then in ethics. Non-formal reason brings rationality not just to the empirical world of science but also to the empirical realities of human lives. Among the many real cases they present is that of how women at risk of having children with genetic conditions decide whether to try to become pregnant. These women do not apply the formal principle of maximizing expected utility (as advised by genetic counselors) and instead imagine scenarios of what their lives could be like with an affected child and assess whether they could accept the worst of these scenarios. Hoffmaster and Hooker explain how moral compromise and a liberated, extended, and enriched reflective equilibrium expand and augment rational ethical deliberation and how that deliberation can rationally design ethical practices, institutions, and policies. (shrink)

Rationality and reasonableness can be illustrated as Janus-faced concepts, not only in a descriptive diagnosis but also in a normative construction of adjudication, and in the analysis of its practical and rhetorical effects. Considering such an illustration, the present reflection returns to the discussion on the relevance of rationality and reasonableness in legal interpretation, aiming at distinguishing and/or connecting principles and criteria, beyond formally logical and/or procedurally argumentative decision-making, and, thus, within a normatively practical adjudication. Such an approach will (...) be presented in two main steps. In a first step, the rationality/reasonableness dichotomy will be discussed within a constitutive connection between principles and criteria in adjudication, and understanding legal principles as normatively substantial foundations to legal criteria—the former as axiological references filtered into the juridical system and the latter as their concretizations, and whose practical adequacy is rhetorically assigned by the interpretive communities involved in/by adjudication, and normatively referred both to their practical accordance to the axiological normativity of the principles they shall presuppose and to their suitability as practical operators to the problematic relevance of the sub judice cases. In a second step, and consequently, encompassing the projection of legal interpretation, in semiotic and in practical-normative perspectives, in order to discuss their constituting practical relevance in adjudication, the rationality/reasonableness dichotomy will be experimented within formal-logical procedures and within practical-dialectical connections between juridical problem and juridical system—therefore stating a discussion on the foundations, the intentionality and the consequences of adjudication, amongst deduction and analogy. (shrink)

Van Fraassen famously endorses the Principle of Reflection as a constraint on rational credence, and argues that Reflection is entailed by the more traditional principle of Conditionalization. He draws two morals from this alleged entailment. First, that Reflection can be regarded as an alternative to Conditionalization – a more lenient standard of rationality. And second, that commitment to Conditionalization can be turned into support for Reflection. Van Fraassen also argues that Reflection implies (...) Conditionalization, thus offering a new justification for Conditionalization. I argue that neither principle entails the other, and thus neither can be used to motivate the other in the way van Fraassen says. There are ways to connect Conditionalization to Reflection, but these connections depend on poor assumptions about our introspective access, and are not tight enough to draw the sorts of conclusions van Fraassen wants. Upon close examination, the two principles seem to be getting at two quite independent epistemic norms. (shrink)

Utilitarianism claims to be a rational moral theory in at least three ways. First, it claims to give us an objective standard of morality, a way of deciding moral issues, not in the light of what each of us happens to like or dislike, but on publicly verifiable grounds. Secondly, by offering only one criterion of morality it assures consistency. If we accept a system which invokes two or more independent principles, there is always the possibility of insoluble conflict. (...) For example, if we take our stand on the Ten Commandments, we cannot, without divine revelation, be sure that we shall not one day find ourselves in a situation in which we must break one or other of them; and our system gives us no guide as to which we ought to break. (shrink)

This paper considers the evolution of the problem of scientific rationality from Kant through Carnap to Kuhn. I argue for a relativized and historicized version of the original Kantian conception of scientific a priori principles and examine the way in which these principles change and develop across revolutionary paradigm shifts. The distinctively philosophical enterprise of reflecting upon and contextualizing such principles is then seen to play a key role in making possible rational intersubjective communication between otherwise incommensurable paradigms.

In A Theory of Justice, John Rawls defines a hypothetical contract situation and argues rational people will agree on reflection it is fair to contractors. He solves the rational choice problem it poses by deriving two lexically-ordered principles of justice and suggests the derivation justifies the principles. Its soundness aside, just what justificatory force does such a derivation have?On one view, there is no justificatory force because the contract is rigged specifically to yield principles which match our (...) pre-contract moral judgments. Rawls provides ammunition for this claim: “By going back and forth, sometimes altering the conditions of the contractual circumstances, at others withdrawing our judgments [about what is just] and conforming them to principle, I assume that eventually we shall find a description of the initial situation that both expresses reasonable conditions and yields principles which match our considered judgments duly pruned and adjusted.”. (shrink)

Some arguments include imperative clauses. For example: ‘Buy me a drink; you can’t buy me that drink unless you go to the bar; so, go to the bar!’ How should we build a logic that predicts which of these arguments are good? Because imperatives aren’t truth apt and so don’t stand in relations of truth preservation, this technical question gives rise to a foundational one: What would be the subject matter of this logic? I argue that declaratives are used to (...) produce beliefs, imperatives are used to produce intentions, and beliefs and intentions are subject to rational requirements. An argument will strike us as valid when anyone whose mental state satisfies the premises is rationally required to satisfy the conclusion. For example, the above argument reflects the principle that it is irrational not to intend what one takes to be the necessary means to one’s intended ends. I argue that all intuitively good patterns of imperative inference can be explained using off-the-shelf formulations of our rational requirements. I then develop a formal-semantic theory embodying this view that predicts a range of data, including free-choice effects and Ross’s paradox. The resulting theory shows one way that our aspirations to rational agency can be discerned in the patterns of our speech, and is a case study in how the philosophy of language and the philosophy of action can be mutually illuminating. (shrink)

The method of reflective equilibrium implies that moral principles received from philosophical reasoning and considered moral judgments received intuitively are finally justified if they cohere with each other. This idea is combined with the proposal of rational consensus (Lehrer), which shows the way in which divergences of judgements could be made to converge. This second method is used to the end of rendering more plausible the intuitions used in reflective equilibrium, and, so, to show the appropriateness of the coherentist (...) method in ethics. (shrink)

The Puzzle of the Hats is a puzzle in social epistemology. It describes a situation in which a group of rational agents with common priors and common goals seems vulnerable to a Dutch book if they are exposed to different information and make decisions independently. Situations in which this happens involve violations of what might be called the Group-Reflection Principle. As it turns out, the Dutch book is flawed. It is based on the betting interpretation of the (...) subjective probabilities, but ignores the fact that this interpretation disregards strategic considerations that might influence betting behavior. A lesson to be learned concerns the interpretation of probabilities in terms of fair bets and, more generally, the role of strategic considerations in epistemic contexts. Another lesson concerns Group-Reflection, which in its unrestricted form is highly counter-intuitive. We consider how this principle of social epistemology should be re-formulated so as to make it tenable. (shrink)

Designing Engineering Cases contributes to learning Physics principles. This involves a method derived from Structured Rational Thinking. The research objectives were: analyze the design process of the Case by the SRJU model: structure, review, judges validation, students evaluation, with the dimensions of: clarity, coherence, relevance, sufficiency. It was described the relationship of rational thinking with the SRJU model. The first stage consisted of theoretically basing pedagogy related with rational thought of ancient Greece; Secondly, was developed the test (...) design through an interaction matrix for order and interpret data that reflect level of conceptualization, according to types of structured thought: logical, methodical, narrative; For each type, dimensions of content, purpose and structure are evaluated, through an essay of the designed Case and Socratic dialogue implemented; with a sample of a control and experimental group of 45 students. To measure the impact of understanding, three levels considered: little, moderate and a lot; each level related to a type of rational thinking with its dimensions, coded with an ordinal scale from 1 to 3. A summary table was constructed for identifying type of thought in student's interpretation when wrote and discussed the Case. In the third stage, the results of validation and evaluation showed optimal levels of relevance and sufficiency; with coincidences in acceptable assessments that the Case is not totally coherent with a linear reality but complex. Conclusion, the SRJU model is effective to design Cases due to its processes derived from rational thought, which also may improve understanding. (shrink)

This paper is about the standard Reflection Principle :235–256, 1984) and the Group Reflection Principle :478–502, 2007; Bovens and Rabinowicz in Episteme 8:281–300, 2011; Titelbaum in Quitting certainties: a Bayesian framework modeling degrees of belief, OUP, Oxford, 2012; Hedden in Mind 124:449–491, 2015). I argue that these principles are incomplete as they stand. The key point is that deference is an intensional relation, and so whether you are rationally required to defer to a person at a (...) time can depend on how that person and that time are designated. In this paper I suggest a way of completing the Reflection Principle and Group Reflection Principle, and I argue that so completed these principles are plausible. In particular, they do not fall foul of the Sleeping Beauty case :143–147, 2000), the Cable Guy Paradox :112–119, 2005), Arntzenius’ prisoner cases :356–370, 2003), or the Puzzle of the Hats :281–300, 2011). (shrink)

It is more than a half-century since Nelson Goodman [1955] applied what we call the Reflective Equilibrium model of justification to the problem of justifying induction, and more than three decades since Rawls [1971] and Daniels [1979] applied celebrated extensions of this model to the problem of justifying principles of social justice. The resulting Wide Reflective Equilibrium model (WRE) is generally thought to capture an acceptable way to reconcile inconsistency between an intuitively plausible general principle and an intuitively plausible (...) judgment about a particular case. Recently a different model for reconciling moral inconsistency has emerged: Moral Consistency Reasoning [Campbell and Kumar 2012, 2013a; Kumar and Campbell 2012; Campbell 2009: 86?7; Campbell and Woodrow 2003; Wong 2002]. MCR applies when two moral judgments give opposing assessments of (what appear to be) relevantly similar particular cases. Though WRE and MCR are strikingly different, each arguably captures a rationally acceptable method for reconciling moral inconsistency. Moreover, as will be shown, they function in complementary ways. Are they parts of a more comprehensive model of moral reasoning in the face of inconsistency that would explain the attractions of each? This essay first spells out the relevant differences between the models and then formulates a more general model of moral reasoning in the face of inconsistency. ?1 reviews the emergence of Goodman's model that he offers in the spirit of epistemology naturalized, almost a decade before Quine coined the term [1969a]. ?2 analyses six salient features of WRE to be compared with six contrasting features of MCR in ?3. ?4 presents the general model. (shrink)

Based on the dispute between Protagoras and Socrates on the origin of ethics, one can ask the question of whether the principle of ethics is reason orfeeling/emotion, or whether ethics is grounded on reason or feeling/emotion. The development of Kant’s thoughts on ethics shows the tension between reason and feeling/emotion. In Kant’s final critical ethics, he held to a principle of “rational a priori.” On the one hand, this is presented as the rational a priori (...) class='Hi'>principle being the binding principle of judgment. On the other hand, it is presented as the doctrine of “rational fact” as the ultimate argument of his ethics. Husserl believed that Kant’s doctrine of a rational a priori totally disregarded the a priori essential laws of feeling. Like Husserl, Scheler criticized Kant’s doctrine of a rational a priori, and therefore developed his own theory of an “emotional a priori”. Both of them focused their critiques on the grounding level of ethics. Scheler, however, did not follow Husserl all the way, but criticized him and reflected on his thoughts. At last, he revealed the primary status of a phenomenological material ethics of value. (shrink)

This paper challenges the assumption that reasons are intrinsic to rational action. A great many actions are not best understood as ones in which the agent acted for reasons--and yet they can be understood as rational, and as open to rational criticism. The relative paucity of explicit reason-giving, practical arguments in daily life presents a general philosophical problem. It reflects the existence of a class of ways in which reason can regulate action, which goes far beyond producing (...) reasons or applying principles. Much practical reasoning takes the form of what H. P. Grice called 'thought-transitions'. These are neither in the form of standard practical arguments, nor can they be so reconstructed without distorting the ways in which an agent thinks. Some actions to which one is led by a thought transition are rational, namely when what Grice called a 'propension' towards a given class of actions--a standing inclination to act in certain ways--would itself stand up to rational evaluation. The paper examines two bases for such endorsement, one local and limited, and one much more speculative, due to Grice himself. (shrink)

Five pre-eminent legal theorists tackle a range of fundamental questions on the nature of the philosophy of criminal law. Their essays explore the extent to which and the ways in which our systems of criminal law can be seen as rational and principled. The essays discuss some of the principles by which, it is often thought, a system of law should be structured, and they ask whether our own systems are genuinely principled or riven by basic contradictions, reflecting deeper (...) political and social conflicts. The volume as a whole shows how lively and exciting contemporary legal theory can be. (shrink)

A powerful and provocative critique of the foundations of Rational Choice theory and the economic way of thinking about the world, written by a former leading practitioner. The target is a dehumanizing ideology that cannot properly recognize that normal people have attachments and commitments to other people and to practices, projects, principles, and places, which provide them with desire-independent reasons for action, and that they are reflective creatures who think about what they are and what they should be, with (...) ideals that can shape and structure the way they see their choices. The author's views are brought to bear on the economic way of thinking about the natural environment and on how and when the norm of fair reciprocity motivates us to do our part in cooperative endeavors. Throughout, the argument is adorned by thought-provoking examples that keep what is at stake clearly before the reader's mind. (shrink)

Five pre-eminent legal theorists tackle a range of fundamental questions on the nature of the philosophy of criminal law. Their essays explore the extent to which and the ways in which our systems of criminal law can be seen as rational and principled. The essays discuss some of the principles by which, it is often thought, a system of law should be structured, and they ask whether our own systems are genuinely principled or riven by basic contradictions, reflecting deeper (...) political and social conflicts. The volume as a whole shows how lively and exciting contemporary legal theory can be. (shrink)

Every modern legal system is made up of two basic kinds of norms: rules and principles. These are applied by means of two different procedures: subsumption and balancing. While rules apply by means of subsumption, balancing is the means of applying principles. Balancing has therefore become an essential methodological criterion for adjudication, especially of constitutional rights. However, balancing is at the heart of many theoretical and practical discussions. One of the most important questions is whether balancing is a rational (...) procedure for applying norms. The aim of this paper is to consider whether this is the case. To achieve this aim, this paper reflects on why the rationality of balancing is in doubt, and to what extent balancing can be rational, and how this can be possible. The weight formula proposed by Robert Alexy is analysed as a model which, in spite of its limits, tries to solve the philosophical and constitutional problems about the rationality of balancing to the greatest extent possible. (shrink)

The observation that humans are often irrational has become commonplace. This observation has received empirical support from various experiments performed by cognitive scientists that are supposed to show that humans systematically violate principles of probability, rules of logic, and other norms of reasoning. In response to these experiments, philosophers have made creative and appealing arguments that these experiments must be mistaken or misinterpreted because humans must be rational. I examine these arguments for human rationality and show that they fail; (...) cognitive science does play a role in assessing human rationality. ;In Chapter One, I examine three cognitive science experiments in detail and discuss what is at issue in the debate about human rationality. At issue is whether the mistakes humans make are mere mistakes or indicative of systematic divergences from norms of reasoning. Defenders of human rationality say these mistakes are not characteristic of underlying reasoning abilities but are performance errors. Because humans make performance errors, human reasoning ability cannot be read off of behavior, but rather is to be studied by exploring cognitive competence, the underlying ability to reason. ;In Chapter Two, I develop and discuss the notion of cognitive competence. I then consider and reject two arguments that human cognitive competence must match the norms of reasoning. The first argument appeals to simplicity considerations, the second to the supposed common origin of our cognitive competence and our normative standards. In Chapter Three, I turn to a related argument for a view that humans are rational that says cognitive competence is discovered in the same way norms of reasoning are justified: both projects involve reflective equilibrium using as data people's judgments about what counts as good reasoning. ;In Chapter Four, I consider an argument for human rationality that draws on the principle of charity: when translating utterances of a speaker, one should try to interpret her utterances as rational and true. ;In Chapter Five, I consider an argument for human rationality that appeals to evolution. This argument claims that natural selection will select for cognitive mechanisms that produce true beliefs, and that such "truth-tropic" mechanisms are sufficient for being rational. ;My overall conclusion is that while cognitive science does not determine what the normative principles of reasoning are, it is relevant to whether or not human cognitive competence matches these principles; whether or not humans are irrational is, thus, an empirical question. (shrink)

A puzzle of an unmarked clock, used by Timothy Williamson to question the KK principle, was separately adapted by David Christensen and Adam Elga to critique a principle of Rational Reflection. Both authors, we argue, flout the received relationship between ideal agency and the classical distinction between systematic and random error, namely that ideal agents are subject only to the latter. As a result, these criticisms miss their mark.

Sometimes a proposition is ‘opaque’ to an agent: he doesn't know it, but he does know something about how coming to know it should affect his or her credence function. It is tempting to assume that a rational agent's credence function coheres in a certain way with his or her knowledge of these opaque propositions, and I call this the ‘Opaque Proposition Principle’. The principle is compelling but demonstrably false. I explain this incongruity by showing that the (...) principle is ambiguous: the term ‘know’ as it appears in the principle can be interpreted in two different ways, as either basic-know or super-know. I use this distinction to construct a plausible version of the principle, and then to similarly construct plausible versions of the Reflection Principle and the Sure-Thing Principle. (shrink)

Moral and theoretical deficiencies of the main foundation strategies in social and political systems (Social Engineering, Foundationalism and Invisible Hand theories) are explained by the necessity of a synthesis of different kinds of rationality, i.e., goal-rationality, norm-rationality and rightness and weighing rationality. The anthropological basis of the theory is a distinction between homo finalis and homo socialis. At the institutional level, this conception leads to a synthesis of the rule of law and the welfare state. At the political level, this (...) implies a retonsideration of the principles of democracy and political planning. (shrink)

The thesis of the paper is that persons are similar to a kind of group: multiple-expert epistemic unities (MEUs). MEUs are groups in which there are multiple experts on whom other members of the group model their opinion. An example would be a group of children playing Telephone. Any child nearer the source is an 'expert' for any child further away. I argue that, with certain important qualifications, it is both rational and necessary for persons to treat their future (...) selves as experts (i.e. to satisfy Bas Van Fraassen's Principle of Reflection). This makes a person a kind of MEU. (The paper "Epistemic Unities" gives more details about different kinds of epistemic unities.). (shrink)

Kant’s (rational) understanding of possession and property rights is conceptually and ideally placed in a comparative relation to private law theory, civil law doctrine, and positive legislation. Property law in the objective sense as “a set of all the laws concerning real”, external “mine and yours” is enforceable exclusively in the civil state where the final acquisition of property rights occurs, the a priori of which is reflected in possession. According to Kant, control over things in possession is a (...) noumenon, a mental (rational) connection between a person and a thing. In contrast, a phaenomenon, a sensible (physical) connection between a thing and a person, is only its physical reflection, whereby such processing of possession can serve as an essential explanation of the so-called “spiritualized possession”, which, as a belonging genus proximum with intelligible possession, was also mentioned in the civil law doctrine. Every establishment of property rights is preceded by the original common property, common to all people as a practical rational concept that, in its own right, contains the principle that people can use a certain place on Earth according to “legal laws”. Property rights and their acquisition arise from the mind because they are based on intelligible possession, that is, power and an intelligible relationship between a person and a thing, in which a person, as the owner of a thing, of his own free will, obliges others with regard to the use of the thing. The stated will must follow the axiom of external freedom, the postulate of power, and the united will of all. Under permissive law, we are authorized to appropriate external facilities as we choose to the extent that our use does not infringe on another person’s freedom. Otherwise, we are deprived of our own freedom, and any limitation of (private) property is against our individual and united will of all in recognizing property rights. (shrink)