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

What knowledge is imperilled by sceptical doubt? That is, what range of beliefs may be called into doubt by sceptical nightmares like the Cartesian demon hypothesis? It is generally thought that demons have limited powers, perhaps only threatening a posteriori knowledge of the external world, but at any rate not threatening principles like the cogito. I will argue that there is a demon – the debasing demon – with unlimited powers, which threatens universal doubt. Rather than deceiving us with falsities, (...) the debasing demon would allow us true beliefs, but only as guesses. (shrink)

Moral intuitionism is the view that we can know or justifiably believe some moral facts directly, without inferring them from other evidence or proof. While intuitionism is frequently dismissed as implausible, the theory has received renewed interest in the literature.See Robert Audi, The Good in the Right: A Theory of Intuition and Intrinsic Value (Princeton: Princeton University Press, 2004); Jill Graper Hernandez (ed.), The New Intuitionism (London: Continuum, 2011); Michael Huemer, Ethical Intuitionism (New York: Palgrave Macmillan, 2005); Sabine Roeser, Moral (...) Emotions and Intuitions (New York: Palgrave Macmillan, 2011); Russ Shafer-Landau, Moral Realism: A Defence (Oxford: Clarendon Press, 2003); Philip Stratton-Lake (ed.), Ethical Intuitionism: Re-evaluations (Oxford: Clarendon Press, 2002). Several philosophers have defended updated intuitionistic theories and argue that the theory is not as objectionable as previously alleged.Contemporary reformulations of moral intuitionism ar. (shrink)

According to moral intuitionism, at least some moral seeming states are justification-conferring. The primary defense of this view currently comes from advocates of the standard account, who take the justification-conferring power of a moral seeming to be determined by its phenomenological credentials alone. However, the standard account is vulnerable to a problem. In brief, the standard account implies that moral knowledge is seriously undermined by those commonplace moral disagreements in which both agents have equally good phenomenological credentials supporting their disputed (...) moral beliefs. However, it is implausible to think that commonplace disagreement seriously undermines moral knowledge, and thus it is implausible to think that the standard account of moral intuitionism is true. (shrink)

A selective annotated bibliography of recent literature on a priori knowledge.

This is a very selective survey of developments in epistemology, concentrating on work from the past twenty years that is of interest to philosophers of science. The selection is organized around interesting connections between distinct themes. I first connect issues about skepticism to issues about the reliability of belief-acquiring processes. Next I connect discussions of the defeasibility of reasons for belief to accounts of the theory-independence of evidence. Then I connect doubts about Bayesian epistemology to issues about the content of (...) perception. The last detailed connection is between considerations of the finiteness of cognition and epistemic virtues. To connect the connections I end by briefly discussing the pressure that consideration of social roles in the transmission of belief puts on the purposes of epistemology. (shrink)

According to moral intuitionism, moral properties are objective, but our cognitions of them are not always based on premises. In this paper, I develop a novel version of moral intuitionism and argue that this new intuitionism is worthy of closer attention. The intuitionistic theory I propose, while inspired by the early twentieth-century intuitionism of W. D. Ross, avoids the alleged errors of his view. Furthermore, unlike Robert Audi's contemporary formulation of intuitionism, my theory has the resources to account for the (...) noninferential character of particular, as opposed to merely general, moral beliefs. I achieve this result by avoiding the appeal to self-evidence to explain the possibility of noninferential moral knowledge. (shrink)

There are ways that ethical intuitions might be, and the various possibilities have epistemic ramifications. This paper criticizes some extant accounts of what ethical intuitions are and how they justify, and it offers an alternative account. Roughly, an ethical intuition that p is a kind of seeming state constituted by a consideration whether p, attended by positive phenomenological qualities that count as evidence for p, and so a reason to believe that p. They are distinguished from other kinds of seemings, (...) such as those which are content driven (e.g., the sensory experience that a stick in water seems bent) and those which are competence driven (e.g., the intellectual seeming that XYZ is not water, or that one of DeMorgan’s laws is true). One important conclusion is this: when crafting a positive theory of justification ethical intuitionists have fewer resources than intuitionists in other domains, not because of the subject matter of ethical intuitions, but because of the their structure. A second conclusion is that the seemings featured in substantive ethical intuitions deliver relatively weak justification as compared to other seeming states. (shrink)

In this paper I lay out, argue for, and defend ethical Mooreanism. In essence, the view says that some moral propositions are Moorean propositions and thus are epistemically superior to the conjunctions of the premises of skeptical arguments to the contrary. In Sect. 1 I explain Mooreanism and then ethical Mooreanism. In Sect. 2 I argue for ethical Mooreanism by noting a number of important epistemic parities that hold between certain moral truths and standard Moorean facts. In Sect. 3 I (...) defend ethical Mooreanism against the objection that moral propositions are too epistemically dissimilar to standard Moorean facts to count as Moorean truths. (shrink)

The traditional epistemological approach towards judgments like BACHELORS ARE UNMARRIED or ALL KNOWLEDGE IS TRUE is that they are justified or known on the basis of understanding alone. In this paper, I develop an understanding-based account which takes understanding to be a sufficient source of epistemic justification for the relevant judgments. Understanding-based accounts face the problem of the rational revisability of almost all human judgments. Williamson has recently developed a reinforced version of this problem: the challenge from expert revisability. This (...) is the problem that even the best candidate judgments for understanding-based justification can be rationally rejected by the relevant experts, who may not even have any disposition or inclination to accept these judgments. However, I argue that expert revisability is fully compatible with the proposed understanding-based epistemology, because expert revisability is true of sufficient sources of epistemic justification in general. A remaining metaphysical worry is that understanding might end up being ‘too thin’ to play the envisaged epistemological role. This worry can be countered with a novel metaphysics of understanding involving second-order dispositions. (shrink)

Foundationalism in moral epistemology is a core tenet of ethical intuitionism. According to foundationalism, some moral beliefs can be known without inferential justification; instead, all that is required is a proper understanding of the beliefs in question. In an influential criticism against this view, Walter Sinnott-Armstrong has argued that certain psychological facts undermine the reliability of moral intuitions. He claims that foundationalists would have to show that non-inferentially justified beliefs are not subject to those defeaters, but this would already constitute (...) a form of inference and hence undermine the possibility of noninferential justification. The goal of my paper is to defend foundationalism against Sinnott-Armstrong’s criticism. After presenting his challenge, I first argue that the most promising objection to it fails. This objection makes the case that defeater-defeaters are not part of the justification, but merely preserve the justification which the original claim provides. I object to this argument by distinguishing between weak and robust defeaters; only weak defeaters, I argue, fall outside the scope of justification, and it is an open question whether Sinnott-Armstrong’s defeaters fall into that category. This leads the way to my own criticism of Sinnott-Armstrong’s challenge: foundationalists in moral epistemology are entitled to the use of defeater-defeaters as part of the justification for moral beliefs as long as those defeater-defeaters themselves do not entail moral claims. Therefore, Sinnott-Armstrong’s challenge does not undermine foundationalism. (shrink)

Moral intuitionism, which claims that some moral seemings are justification-conferring, has become an increasingly popular account in moral epistemology. Defenses of the position have largely focused on the standard account, according to which the justification-conferring power of a moral seeming is determined by its phenomenal credentials alone. Unfortunately, the standard account is a less plausible version of moral intuitionism because it does not take etiology seriously. In this paper, I provide an outline and defense of a non-standard account of moral (...) intuitionism that I dub the “Prudent Conscience View.” According to this view, phenomenal credentials only partially determine the justification-conferring power of a moral seeming, for a seeming’s justification-conferring power is also determined by its etiology. In brief, a moral seeming is justification-conferring to the degree that the conscience that gave rise to it is functioning properly, and a person's conscience functions properly to the degree that the person is prudent. (shrink)

The dissertation examines the nature and epistemic implications of epistemic source circularity. An argument exhibits this type of circularity when at least one of the premises is produced by a belief source the conclusion says is legitimate, e.g. a track record argument for the legitimacy of sense perception that uses premises produced by sense perception. In chapter one I examine this and several other types of circularity, identifying relevant similarities and differences between them. In chapter two I discuss the differences (...) between internalist and externalist analyses of justification. I examine in detail foundationalist and non-foundationalist versions of internalism, and go on to consider how one might characterize externalism: either negatively, by denying particular internalist theses, or positively, in terms of a theory offering different conditions for justification. I discuss the views of reliabilist foundationalists at length. In chapter three I present the internalist objection to externalism that the latter mistakenly permit one to be justified in believing the conclusion of an epistemic source circular inference. I explain the externalists' response that it is not in virtue of their externalism that they permit epistemic source circularity but rather their foundationalism; thus, internalist foundationalists must permit epistemic source circularity as well. I evaluate the positions of several internalists, most of them explicitly foundationalists, and argue that they too cannot avoid permitting epistemic source circularity. In the final chapter I consider whether such circularity is vicious, even though both internalist and externalist foundationalists permit it. I argue that one can sustain an objection to epistemic source circularity by imposing a non-question-begging requirement on justification and explain how respecting this requirement leads one to a non-foundationalist view. I conclude by considering the objection that question-begging leads to a certain arbitrariness in belief formation that should give the foundationalist pause when it comes to determining, at the beginning of inquiry, which beliefs are justified and which are not. The dissertation is primarily concerned with making clear the possible skeptical and non-skeptical positions one can take towards epistemic source circularity. I do not argue for the truth of a particular metaepistemology. (shrink)

According to rationalists about moral knowledge, some moral truths are knowable a priori. Rationalists often defend their position by claiming that some moral propositions are self-evidently true. Copp 2007 has recently challenged this rationalist strategy. Copp argues that even if some moral propositions are self-evident, this is not enough to secure rationalism about moral knowledge, since it turns out that such self-evident propositions are only knowable a posteriori. This paper considers the merits of Copp’s challenge. After clarifying the rationalists’ appeal (...) to self-evidence, I show why this rationalist strategy survives Copp’s challenges to it. (shrink)

The purpose of this paper is to get clear on how we should think about Mooreanism. I will argue that Mooreanism is best understood as a metaphilosophical response to skepticism rather than a particular position on specialized debates in first-order epistemology. This ecumenical understanding of Mooreanism implies that a broad array of epistemologists is free to be Moorean. In Sect. 2 I discuss several non-Moorean responses to skepticism. In Sect. 3 I provide an exposition of Mooreanism itself. In Sect. 4 (...) I show that most epistemologists are free to be Mooreans. This is important for the following reason: to the extent that we want a non-concessive reply to the skeptic – rather than a reply that is partially or potentially concessive – we should be highly attracted to Mooreanism. (shrink)

I argue that beliefs that are true whenever held-like I exist, I am thinking about myself, and (in an object-dependent framework) Jack = Jack-needn't on that account be a priori. It does however seem possible to remove the existential commitment from the last example, to get a belief that is knowable a priori. I discuss some difficulties concerning how to do that.

Félix Aubé Beaudoin | : Le dilemme darwinien, formulé par Sharon Street, somme les réalistes moraux d’expliquer pourquoi de nombreux jugements qui sont des candidats au statut de vérités morales indépendantes sont aussi ceux qui ont une grande valeur sélective. Les réalistes peuvent soit nier, soit affirmer l’existence d’un lien entre pressions évolutionnistes et vérités morales. Selon Street, la première option mène au scepticisme tandis que la seconde est indéfendable sur le plan scientifique. Peter Singer et Katarzyna de Lazari-Radek optent (...) pour la première branche de ce dilemme. Dans cet article, la stratégie argumentative qu’ils adoptent — la réponse naturelle — sera soumise à un examen critique. Deux objections seront formulées. La première est d’ordre épistémologique : l’intuitionnisme philosophique défendu par les auteurs fait face à des difficultés majeures. La seconde, plus fondamentale, est que leur solution ne permet pas d’expliquer autrement que par un heureux hasard l’alignement entre les vérités morales et les jugements ayant une valeur sélective. | : According to Sharon Street’s Darwinian Dilemma, moral realists must explain why many judgments that are likely to be independent moral truths are those it would be evolutionarily adaptive to hold. Realists can either deny or assert the existence of a relation between evolutionary influences and moral truths. The first option leads to skepticism, while the second is unacceptable on scientific grounds, says Street. Peter Singer and Katarzyna de Lazari-Radek take the first horn of this dilemma. In this article, the argumentative strategy they adopt — the Natural Reply - is submitted to critical scrutiny. Two objections are raised. The first objection is epistemological : philosophical intuitionism, as defended by the authors, is an untenable position. The second objection is that their solution must appeal to unlikely coincidences to account for the overlap between independent moral truths and evolutionarily adaptive attitudes. (shrink)

This paper discusses Lippert-Rasmussen’s [Philosophical Studies 104, (2001) 123–141] claim that there are reasonable question-begging arguments. It is first argued that his arguments devalue the distinction between justifiable and justified beliefs, a distinction that is important for the fallacy theory. Second, it is argued that the role of the argument in the discussed cases can be questioned. In addition, the role of second order beliefs is discussed.

The first phase of the recent intuitionist revival left untouched Ross’s claim that fundamental moral truths are self-evident. In a recent article, Robert Cowan attempts to explain, in a plausible way, how we know moral truths. The result is that, while the broad framework of Ross’s theory appears to remain in place, the self-evidence of moral truths is thrown into doubt. In this paper, I examine Cowan’s Conceptual Intuitionism. I use his own proposal to show how he arrives at a (...) skeptical position on self-evidence. First, he completely ignores the kind of epistemic appraisal intuitionism has always rested on; second, he is committed to the Reasons View of prima facie duty, rather than to Ross’s Properties View; third, he holds that a commitment to self-evidence often comes with a commitment to metaphysically extravagant entities, which he calls Perceptualism; fourth, he scrutinizes only a part of the contemporary theory of self-evidence, overlooking the strengths of the theory when considered as a whole. Revealing these several points supports the conclusion that Cowan has not provided a viable variety of Rossian Intuitionism. (shrink)

This paper is divided in five sections. Section 11.1 sketches the history of the distinction between speech act with negative content and negated speech act, and gives a general dynamic interpretation for negated speech act. “Downdate semantics” for AGM contraction is introduced in Section 11.2. Relying on semantically interpreted contraction, Section 11.3 develops the dynamic semantics for constative and directive speech acts, and their external negations. The expressive completeness for the formal variants of natural language utterances, none of which is (...) a retraction, has been proved in Section 11.4. The last section gives a laconic answer to the question posed in the title of the paper. (shrink)