Mackie on Practical Reason

I argue that John Mackie’s treatment of practical reason is both attractive and unjustly neglected. In particular, I argue that it is importantly different from, and much more plausible than, the kind of instrumentalist approach famously articulated by Bernard Williams. This matters for the interpretation of the arguments for Mackie’s most famous thesis: moral scepticism, the claim that there are no objective values. Richard Joyce has recently defended a version or variant of moral scepticism by invoking an instrumentalist theory like Williams’. I argue that this is a serious strategic mistake.

Transcendental Arguments and Practical Reason in Indian Philosophy

This paper examines some Indian philosophical arguments that are understandable as transcendental arguments—i.e., arguments whose conclusions cannot be denied without self-contradiction, insofar as the truth of the claim in question is a condition of the possibility even of any such denial. This raises the question of what kind of self-contradiction is involved—e.g., pragmatic self-contradiction, or the kind that goes with logical necessity. It is suggested that these arguments involve something like practical reason—indeed, that they just are arguments against the primacy of “theoretical reason.” This characterization illuminates a characteristically Indic appeal to ordinary language.

Number sense and quantifier interpretation

We consider connections between number sense—the ability to judge number—and the interpretation of natural language quantifiers. In particular, we present empirical evidence concerning the neuroanatomical underpinnings of number sense and quantifier interpretation. We show, further, that impairment of number sense in patients can result in the impairment of the ability to interpret sentences containing quantifiers. This result demonstrates that number sense supports some aspects of the language faculty.

Motor intentionality and the case of Schneider

I argue that Merleau-Ponty’s use of the case of Schneider in his arguments for the existence of non-conconceptual and non-representational motor intentionality contains a problematic methodological ambiguity. Motor intentionality is both to be revealed by its perspicuous preservation and by its contrastive impairment in one and the same case. To resolve the resulting contradiction I suggest we emphasize the second of Merleau-Ponty’s two lines of argument. I argue that this interpretation is the one in best accordance both with Merleau-Ponty’s general methodology and with the empirical case of Schneider as it was described by Gelb and Goldstein.

Recurrent transient underdetermination and the glass half full

Kyle Stanford’s arguments against scientific realism are assessed, with a focus on the underdetermination of theory by evidence. I argue that discussions of underdetermination have neglected a possible symmetry which may ameliorate the situation.

A Note on the Nomic Possibility of a Dynamic Shift

In this note, I argue that a dynamically shifted world—i.e. a world identical to our own except for a fixed constant difference in the absolute acceleration of each object—is nomically impossible in a Newtonian world populated by finitely many objects. A dynamic shift however seems to be nomically possible in a world populated by infinitely many objects, but only in a broad sense of nomic possibility.

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Still Epiphenomenal Qualia: Response to Muller

Hans Muller has recently attempted to show that Frank Jackson cannot assert the existence of qualia without thereby falsifying himself on the matter of such mental states being epiphenomenal with respect to the physical world. I argue that Muller misunderstands the commitments of qualia epiphenomenalism and that, as a result, his arguments against Jackson do not go through.

Don’t Know,Don’t Kill: Moral Ignorance,Culpability, and Caution

This paper takes on several distinct but related tasks. First, I present and discuss what I will call the “Ignorance Thesis,” which states that whenever an agent acts from ignorance, whether factual or moral, she is culpable for the act only if she is culpable for the ignorance from which she acts. Second, I offer a counterexample to the Ignorance Thesis, an example that applies most directly to the part I call the “Moral Ignorance Thesis.” Third, I argue for a principle—Don’t Know, Don’t Kill—that supports the view that the purported counterexample actually is a counterexample. Finally, I suggest that my arguments in this direction can supply a novel sort of argument against many instances of killing and eating certain sorts of animals.

Quine, Putnam, and the ‘Quine–Putnam’ Indispensability Argument

Much recent discussion in the philosophy of mathematics has concerned the indispensability argument—an argument which aims to establish the existence of abstract mathematical objects through appealing to the role that mathematics plays in empirical science. The indispensability argument is standardly attributed to W. V. Quine and Hilary Putnam. In this paper, I show that this attribution is mistaken. Quine’s argument for the existence of abstract mathematical objects differs from the argument which many philosophers of mathematics ascribe to him. Contrary to appearances, Putnam did not argue for the existence of abstract mathematical objects at all. I close by suggesting that attention to Quine and Putnam’s writings reveals some neglected arguments for platonism which may be superior to the indispensability argument.

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A new argument for skepticism

The traditional argument for skepticism relies on a comparison between a normal subject and a subject in a skeptical scenario: because there is no relevant difference between them, neither has knowledge. Externalists respond by arguing that there is in fact a relevant difference—the normal subject is properly situated in her environment. I argue, however, that there is another sort of comparison available—one between a normal subject and a subject with a belief that is accidentally true—that makes possible a new argument for skepticism. Unlike the traditional form of skeptical argument, this new argument applies equally well to both internalist and externalist theories of knowledge.

Philosophy on steroids: why the anti-doping position could use a little enhancement

There is currently much concern over the use of pharmaceuticals and other biomedical techniques to enhance athletic performance—a practice we might refer to as doping. Many justifications of anti-doping efforts claim that doping involves a serious moral transgression. In this article, I review a number of arguments in support of that claim, but show that they are not conclusive, suggesting that we do not have good reasons for thinking that doping is wrong.

The meta-theory of piety: reflections on the work of Saba Mahmood

This paper discusses the extent to which Saba Mahmood’s ideas about Muslim women and agency are relevant for works beyond her ethnographic speciality. The first part will reflect upon her arguments about Muslim female piety within the larger context of progressive politics in the USA and the Middle East. The second part will describe the implications of Mahmood’s work towards the production of alternative discourses—that is, works inspired by and produced from outside the overarching influence of a Euro-American intellectual tradition.

Case Study Evidence for an Irreducible Form of Knowing How to: An Argument Against a Reductive Epistemology

Over recent years, there has been a resurgence of interest in arguments favouring intellectualism—the view that Ryle’s epistemic distinction is invalid because knowing how is in fact nothing but a species of knowing that. The aim of this paper is to challenge intellectualism by introducing empirical evidence supporting a form of knowing how that resists such a reduction. In presenting a form of visuomotor pathology known as visual agnosia, I argue that certain actions performed by patient DF can be distinguished from a mere physical ability because they are (1) intentional and (2) knowledge-based; yet these actions fail to satisfy the criteria for propositional knowledge. It is therefore my contention that there exists a form of intentional action that not only constitutes a genuine claim to knowledge but, in being irreducible to knowing that, resists the intellectualist argument for exhaustive epistemic reduction.

Intuitions are inclinations to believe

Advocates of the use of intuitions in philosophy argue that they are treated as evidence because they are evidential. Their opponents agree that they are treated as evidence, but argue that they should not be so used, since they are the wrong kinds of things. In contrast to both, we argue that, despite appearances, intuitions are not treated as evidence in philosophy whether or not they should be. Our positive account is that intuitions are a subclass of inclinations to believe. Our thesis explains why intuitions play a role in persuasion and inquiry, without conceding that they are evidential. The account also makes predictions about the structure of intuitions that are confirmed by independent arguments.

More Troubles for Epiphenomenalism

I have argued that to say qualia are epiphenomenal is to say a world without qualia would be physically identical to a world with qualia. Dan Cavedon-Taylor has offered an alternative interpretation of the commitments of qualia epiphenomenalism according to which qualia cause beliefs and those beliefs can and do cause changes to the physical world. I argue that neither of these options works for the qualia epiphenomenalist and thus that theory faces far more serious difficulties than has previously been recognized.

How is Moral Disagreement a Problem for Realism?

Moral disagreement is widely held to pose a threat for metaethical realism and objectivity. In this paper I attempt to understand how it is that moral disagreement is supposed to present a problem for metaethical realism. I do this by going through several distinct (though often related) arguments from disagreement, carefully distinguishing between them, and critically evaluating their merits. My conclusions are rather skeptical: Some of the arguments I discuss fail rather clearly. Others supply with a challenge to realism, but not one we have any reason to believe realism cannot address successfully. Others beg the question against the moral realist, and yet others raise serious objections to realism, but ones that—when carefully stated—can be seen not to be essentially related to moral disagreement. Arguments based on moral disagreement itself have almost no weight, I conclude, against moral realism.

Relativism about Reasons

Historians must be sensitive to the alienness of the past. Insofar as they are concerned with their actors’ reasoning, they must (through open-minded empirical investigation) find out how their actors thought, and not assume that they thought like us. This is familiar historiographical advice, but pushed too far it can be brought to conflict with rather weak assumptions about what historians must presuppose if they are to interpret their actors at all. The present paper sketches those assumptions, and argues that the influential ‘Strong Program’ in the Sociology of Scientific Knowledge (SSK) falls foul of them. We do not argue from the correctness of the assumptions to the falsity of SSK. Rather, we note the incompatibility, and then show how SSK theorists’ tendency to take interpretation for granted blinds them—and perhaps their readers—to the existence of the conflict.

Epistemological Contextualism and the Knowledge Account of Assertion

In this paper, I take up an argument advanced by Keith DeRose (Philosophical Review, 111:167–203, 2002) that suggests that the knowledge account of assertion provides the basis of an argument in favor of contextualism. I discuss the knowledge account as the conjunction of two theses—a thesis claiming that knowledge is sufficient to license assertion KA and one claiming that knowledge is necessary to license assertion AK. Adducing evidence from Stalnaker’s account of assertion, from conversational practice, and from arguments often raised in favor of the knowledge account, I suggest that neither the AK nor the KA theses are plausible. That is, I argue that the knowledge account of assertion to which DeRose appeals is in fact not suitable as an account of assertion. Given that DeRose’s argument stands and falls with the knowledge account, I claim that the argument therefore fails.

A Quintet,a Quartet,a Trio,a Duo? The Epistemic Regress Problem,Evidential Support,and Skepticism

In his topical article, Andrew Cling claims that the best extant formulation of the so-called epistemic regress problem rests on five assumptions that are too strong. Cling offers an improved version that rests on a different set of three core epistemic assumptions, each of which he argues for. Despite of owing a great deal to Cling’s ideas, I argue that the epistemic regress problem surfaces from more fundamental assumptions than those offered by Cling. There are ultimately two core assumptions—in fact two contradictory strands within the concept of epistemic support—which jointly create a powerful challenge for our pursuit of paramount epistemic values.

Reinterpreting the ‘quickening’ perspective in the abortion debate

Personhood constitutes the pivotal point in the abortion debate. There exists a diversity of views as to when foetal personhood actually starts—from conception and implantation to viability and even birth. One perspective that has lost support for decades is that of quickening, a stance associated with Lord Ellenborough’s 1803 Act. This paper attempts to put quickening back into the limelight, albeit through a new interpretation. After discussing its philosophy and underpinning rationale, I will assess a number of arguments that have been directed against quickening as a viable point of distinction. I conclude by suggesting that according to modern proponents of quickening proponents, rational soul ensoulment begins after a certain degree of cerebral cortical formation has been realized, thus marking foetal volition, which promotes foetal interests, for the first time.