Many contemporary philosophers accept Hume's Dictum, according to which there are no metaphysically necessary connections between distinct, intrinsically typed entities. Tacit in Lewis 's work is a potential motivation for HD, according to which one should accept HD as presupposed by the best account of the range of metaphysical possibilities---namely, a combinatorial account, applied to spatiotemporal fundamentalia. Here I elucidate and assess this Ludovician motivation for HD. After refining HD and surveying its key, recurrent role in Lewis ’s (...) work, I present Lewis ’s appeal to HD as providing a broadly axiomatic generating basis for the space of metaphysical modality, and canvas the prima facie advantages of the resulting combinatorial principle---HD ---as being principled, extensionally adequate and modally reductive. Most criticisms of Lewis 's combinatorialism have targeted seeming ways in which the theory overgenerates the desired space; I rather argue that HD seriously undergenerates the desired space in three different ways. For each way I argue that available means of overcoming the undergeneration either fail to close the gap, undermine the claim that HD is a principled generator of metaphysical modal space, undermine the reductive status of Lewis 's combinatorialism, or call into question the truth of HD. (shrink)

Why believe Hume's Dictum, according to which there are, roughly speaking, no necessary connections between wholly distinct entities? Schaffer suggests that HD, at least as applied to causal or nomological connections, is motivated as required by the best account of of counterfactuals---namely, a similarity-based possible worlds account, where the operative notion of similarity requires 'miracles'---more specifically, worlds where entities of the same type that actually exist enter into different laws. The main cited motivations for such an account of (...) similarity are first, that some salient contexts presuppose CF asymmetry, and second, that accounts of CFs failing to presuppose CF asymmetry are epistemologically problematic, such that under conditions of determinism, the variations in initial micro-conditions needed to implement a given counterfactual antecedent would result in so many changes to macro-states that evaluation of CFs would be rendered practically impossible. Against the first reason, I argue that no non-artificial contexts presuppose CF asymmetry; against the second, I observe that such micro-variation is compatible, in principle, with significant similarity as regards macroscopic states of affairs---enough, in particular, to allow CFs to be appropriately evaluated. (shrink)

This paper explores the metaethical ramifications of a coarse-grained criterion of property identity, sometimes referred to as Hume's dictum. According to Hume's dictum, properties are identical if and only if they are necessarily co-extensive. Assuming the supervenience of the normative on the natural, this criterion threatens the non-naturalist view that there are instantiable normative properties which are distinct from natural properties. In response, non-naturalists typically point to various counterintuitive implications of Hume's dictum. The paper (...) clarifies this strategy and defends it against objections by Bart Streumer and Ralf Bader. In addition, it is argued that proponents of naturalist and supernaturalist views, along with proponents of a certain kind of nihilism, should also reject Hume's dictum. This shows that non-naturalists can also attack the criterion indirectly, by pointing to partners in guilt. Also, it shows that not just any opponent of non-naturalism can appeal to Hume's dictum. Only certain nihilists can. (shrink)

Many contemporary philosophers accept a strong generalization of Hume's denial of necessary causal connections, in the form of Hume's dictum (HD), according to which there are no metaphysically necessary connections between distinct, intrinsically typed entities. Hume's version of his dictum occurs during his investigation into the source of the idea of causal connection. The most powerful role that HD plays in Lewis's system concerns its providing a basis for, as Lewis puts it, a "principle of (...) plentitude" that will guarantee "that the worlds are abundant, and logical space is somehow complete". Lewis's combinatorialism promises to provide a principled, extensionally adequate, and reductive generator of metaphysical modal space. Beyond combinatorialism, there are many other accounts of metaphysical modality that need to be considered, not just with an eye to extensional adequacy but also to the clear desideratum to provide an account of the space of metaphysical modality that is principled. (shrink)

I show that a particular version of Hume's Dictum together with the falsity of Composition as Identity entails an incoherency, so either that version of Hume's Dictum is false or Composition as Identity is true. I conditionally defend the particular version of Hume's Dictum in play, and hence conditionally conclude that Composition as Identity is true. I end by suggesting an alternative way out for a persistent foe of Composition as Identity, namely mereological nihilism.

I argue for the viability of one neglected way of developing supervenience-based objections to metaethical non-naturalism. This way goes through a principle known as ‘Hume’s Dictum’, according to which there are no necessary connections between distinct existences. I challenge several objections to the Hume’s Dictum-based argument. In the course of doing so, I formulate and motivate modest and precise versions of Hume’s Dictum, illustrate how arguments employing these principles might proceed, and argue that the Hume’s Dictum (...) argument enjoys some advantages relative to other supervenience-based objections to non-naturalism. (shrink)

Hume's Dictum (HD) says, roughly and typically, that there are no metaphysically necessary connections between distinct, intrinsically typed, entities. HD plays an influential role in metaphysical debate, both in constructing theories and in assessing them. One should ask of such an influential thesis: why believe it? Proponents do not accept Hume's arguments for his dictum, nor do they provide their own; however, some have suggested either that HD is analytic or that it is synthetic a priori (...) (that is: motivated by intuitions we have no good reason to question). Here I explore whether belief in HD is directly justified on either grounds. I motivate and present more formal characterizations of HD; I show that there are good prima facie cases to be made for HD's being analytic and for its being synthetic a priori; I argue that each of the prima facie cases fails, some things considered. I close by offering two suggestions for how belief in HD might be indirectly justified on argumentative grounds. (shrink)

In this paper I aim to defend one version at least of Hume’s dictum: roughly, the idea that possibility is determined by ontology through something like independent variation. My defence is broadly pragmatic, in the sense that adherence to something like Hume’s dictum delivers at least three benefits. The first benefit is that, through Hume’s dictum, a physical theory’s ontology delimits a range of possibilities, that I call kinematical possibilities, which serves as a sufficiently permissive notion of (...) possibility to sustain something like an intensional semantics for its claims, and a sufficiently demanding notion of supervenience to sustain plausible claims of inter-theoretic reduction and theoretical equivalence. The second benefit is that Hume’s dictum allows us to work backwards from a range of kinematical possibilities to an ontology. This is especially useful when aiming to glean an interpretation of a physical theory, since often we are more confident that we have arrived at the right space of possibilities than that we have arrived at the right ontology. The third benefit is that Hume’s dictum —- at least the version I aim to defend here —- may be applied to physical theories more or less as we find them, and therefore we can practice something resembling ontology without having to force our theories into some Procrustean bed, such as a first-order language. (shrink)

It is regrettably common for theorists to attempt to characterize the Humean dictum that one can’t get an ‘ought’ from an ‘is’ just in broadly logical terms. We here address an important new class of such approaches which appeal to model-theoretic machinery. Our complaint about these recent attempts is that they interfere with substantive debates about the nature of the ethical. This problem, developed in detail for Daniel Singer’s and Gillian Russell and Greg Restall’s accounts of Hume’s dictum, (...) is of a general type arising for the use of model-theoretic structures in cashing out substantive philosophical claims: the question of whether an abstract model-theoretic structure successfully interprets something often involves taking a stand on non-trivial issues surrounding the thing. In the particular case of Hume’s dictum, given reasonable conceptual or metaphysical claims about the ethical, Singer’s and Russell and Restall’s accounts treat obviously ethical claims as descriptive and vice versa. Consequently, their model-theoretic characterizations of Hume’s dictum are not metaethically neutral. This encourages skepticism about whether model-theoretic machinery suffices to provide an illuminating distinction between the ethical and the descriptive. (shrink)

How should we determine the distribution of psychological traits—such as Theory of Mind, episodic memory, and metacognition—throughout the Animal kingdom? Researchers have long worried about the distorting effects of anthropomorphic bias on this comparative project. A purported corrective against this bias was offered as a cornerstone of comparative psychology by C. Lloyd Morgan in his famous “Canon”. Also dangerous, however, is a distinct bias that loads the deck against animal mentality: our tendency to tie the competence criteria for cognitive capacities (...) to an exaggerated sense of typical human performance. I dub this error “anthropofabulation”, since it combines anthropocentrism with confabulation about our own prowess. Anthropofabulation has long distorted the debate about animal minds, but it is a bias that has been little discussed and against which the Canon provides no protection. Luckily, there is a venerable corrective against anthropofabulation: a principle offered long ago by David Hume, which I call “Hume’s Dictum”. In this paper, I argue that Hume’s Dictum deserves a privileged place next to Morgan’s Canon in the methodology of comparative psychology, illustrating my point through a discussion of the debate over Theory of Mind in nonhuman animals. (shrink)

Is the world internally connected by a web of necessary connections or is everything loose and independent? Followers of David Hume accept the latter by upholding Hume’s Dictum, according to which there are no necessary connections between distinct existences. Roughly put, anything can coexist with anything else, and anything can fail to coexist with anything else. Hume put it like this: “There is no object which implies the existence of any other if we consider these objects in themselves.” Since (...) Hume’s day, Hume’s Dictum has played a major role in philosophy, especially in contemporary metaphysics. In ruling out necessary connections, Hume’s Dictum implies that causal relations and the laws of nature are contingent. It makes other demands on our metaphysics of science as well; for example, it places restrictions on our metaphysics of counterfactuals, dispositions, and explanation. The principle has applications in other areas too. Hume’s Dictum places constraints on our theories of abstract objects and moral properties. For example, Hume’s Dictum rules out the view that moral properties are distinct from, but necessarily connected to, non-moral properties. While Hume’s Dictum is a prominent principle in metaphysics, few Humeans have defended the principle at length. It is assumed more often than it is argued for. As a result, Hume’s Dictum no longer enjoys the reputation it once did. It’s common to hear complaints about the lack of arguments in support of Hume’s Dictum. Moreover, philosophers are increasingly willing to defend views that are at odds with Hume’s Dictum. A striking example of this is the recent explosion of interest in views that take causal relations and the laws of nature to be necessary. Humeans can no longer afford to be complacent. An extended defense of Hume’s Dictum is called for, and that’s what this dissertation aims to offer. This dissertation has three parts. In the first part, I lay out some preliminaries and offer a precise formulation of Hume’s Dictum. In the second part, I develop three arguments in favor of Hume’s Dictum. In the final part, I defend Hume’s Dictum against objections. (shrink)

Hsueh M. Qu has recently argued that Hume’s famed ‘Separability Principle’ from the Treatise entangles him in a contradiction. Qu offers a modified principle as a solution but also argues that the mature Hume would not have needed to avail himself of it, given that Hume’s arguments in the first Enquiry do not depend on this principle in any form. To the contrary, I show that arguments in the first Enquiry depend on this principle, but I agree with Qu that (...) Qu’s solution to Hume’s quandary frees him of the contradiction. Next, I compare Qu’s solution to Hume’s original position. By analysing the divergent forms of 'Hume’s Dictum’ that follow from them, I show that Qu’s solution and Hume’s original position have significantly different consequences in a range of domains, including Hume’s modality. Generally, Qu’s solution fits better with Hume’s other commitments—even though Hume often fails to recognize it—thereby increasing its plausibility. (shrink)

According to David Lewis’s Modal Realism, other possible worlds really exist as concrete, spatiotemporal systems, and every way that a world could be is a way that some world is. To establish this plenitude of concrete possible worlds, Lewis presents his ‘principle of recombination,’ which is meant to guarantee that there exists a possible world, or part of a possible world, for every possibility. Jessica Wilson has recently argued that Lewis’s principle of recombination fails to generate enough worlds to account (...) for the plenitude of possibilities. Namely, Wilson argues that the principle of recombination cannot account for the possibility of spatially overlapping but distinct fundamental entities, as well as certain macroscopic entities. In this paper, I will defend Lewis’s principle of recombination against these charges, arguing that Wilson’s objections overlook features of Lewisian metaphysics that can solve the problems at hand. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:217 HUME'S IDEAS ABOUT NECESSARY CONNECTION 1. Introduction Hume asks, "What is our idea of necessity, when we say that two objects are necessarily connected together"? He later says that he has answered this question, but it is difficult to see what his answer is, or even to see precisely what the question was. Currently there are two main ways of understanding Hume's views about our idea (...) of necessary connection. These interpretations divide on the question whether Hume allows that we can speak meaningfully of an objective and necessary connection between two events. The one interpretation, which I will call epistemological, says that Hume does allow meaning to that phrase. On this view, justification is the only topic of Hume's negative message about necessary connection. We can mean what we say when we talk about necessary connection, but we cannot justify what we (meaningfully) say. That, according to this interpretation, is the negative outcome toward which Hume aims his investigation of the origin of our idea of necessary connection. He isn't denying we have that very idea; he is denying that its origin allows us to justify applying it to anything. The other interpretation, which I will call psychological, says that Hume does not allow meaning to the phrase, "an objective and necessary connection between two events." According to this interpretation, once we see the origin of our idea of necessary connection, we realize that we cannot mean by "necessary connection" what we thought we meant. Those words allow us to speak only of a certain 218 feeling in our minds, not of an objective feature of the world. Of course, the psychological interpretation partly resembles the epistemological one: it, too, denies that we can justify saying objective necessary connections exist. But on the psychological interpretation this follows a fortiori from the central negative claim, a claim which itself concerns meaning, not justification. In what follows, I will present these two interpretations more carefully and critically, and then I will advance my own. I think Hume was trying to express a view very different in kind from either of the two I've just mentioned. I think we can get a good idea of the kind of view Hume had by looking at Newton's treatment of gravitational force. Roughly, Newton thought that while there certainly are gravitational forces in objects, we can say nothing about them except that they are whatever it is that accounts for a specific set of observable regularities. Hume's views about necessary connection, or causal power, are roughly parallel. He does not doubt that we may speak meaningfully of objective necessary connections — rE we mean just some unknown quality in objects that underlies the constant conjunction of their sensible qualities. Inevitably we try to mean something more than this, but any such attempt is doomed to failure. Showing that we cannot mean something more is the point of investigating the origin of the "idea." I will be arguing that with this interpretation we can handle the sets of texts and problems that undercut the prevailing two interpretations, and reconcile those sets of texts with one another, despite their apparent inconsistency. This interpretation also has the advantage of attributing to Hume a view closely connected with a 219 distinctively eighteenth-century way of setting up these problems. Finally, I think the interpretation brings out nicely an instructive and central failing of Hume's views about necessary connection. 2. The Epistemological View Although there are hints of this kind of interpretation in other books, it is really articulated and defended only in Barry Stroud's book, 2 Hume. In what follows here, I mean to be sketching out and commenting on that interpretation. Hume wants to find out what our idea of necessary connection is. He conducts his investigation according to the dictum, "as we have no idea, that is not deriv'd from an impression, we must find some impression, that gives rise to this idea of necessity, if we assert we have really such an idea." (T 155) He argues, of course, that among our experiences of causes and effects, there are no impressions of necessary connection. Our experiences of... (shrink)

The paper is devoted to the interpretation of one of the most important passages in modern Anglophon philosophy: III.1.3 of Treatise of Human Nature by David Hume. The author considers the problem of its meaning at an angle of the standard interpretation, which can be summed up in a dictum: ‘no ought from is’ (so called “Hume’s Guillotine”). The author outlines four possible approaches to this putative meaning of the Treatise passage and weighs arguments for them. The investigation, based (...) mainly on the strategies by Arthur Prior, Charles Pigden and John Searle, allows to defend two approaches regarding Hume’s putative proposal of is/ought gap: /1/ the idea of logical autonomy of moral discourse, making strong rationality of deduction from is to (non-trivial) ought invalid, together with /2/ the possibility of weak rational (justified) inference from is to ought. However, the comparison of these two accounts with the guts of Humean philosophy as such (critical skepticism, fallibilism, ethical noncognitivism) makes the author prone to give a priority to the latter. (shrink)

Humeans and non-Humeans reasonably agree that there may be necessary connections between entities that are identical or merely partly distinct—between, e.g., sets and their individual members, fusions and their individual parts, instances of determinates and determinables, members of certain natural kinds and certain of their intrinsic properties, and (especially among physicalists) certain physical and mental states. Humeans maintain, however, that as per “Hume’s Dictum”, there are no necessary connections between entities that are wholly distinct;1 and in particular, no necessary (...) causal connections between such entities (even when the background conditions requisite for causation are in place). The Humean’s differential treatment appears principled, in reflecting that commonly accepted necessary connections involve constitutional relations, whereas wholly distinct entities (notably, causes and effects) do not constitute each other. I’ll argue, however, that the appearance of principle is not genuine, as per the following conditional: Constitutional→Causal: If one accepts certain constitutional necessities, one should accept certain causal necessities. This result provides needed leverage in assessing the two main frameworks in the metaphysics of science, treating natural kinds, causes, laws of nature, and the like. These frameworks differ primarily on whether Hume’s Dictum is taken as a working constraint on theorizing; and it has proved difficult for either side to criticize the other without presupposing their preferred stance on the dictum, hence talking past one another. The arguments for Constitutional→Causal are based, however, in general and independent considerations about what facts in the world might plausibly warrant our beliefs in certain constitutional necessities involving broadly scientific entities. The Humean can respond to these arguments, which reveal a deep tension in their view, at attendant costs of implausibilty and adhocery. The non-Humean framework doesn’t face any such tension between constitutional and causal necessities, however, and so in this respect comes out ahead. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:HUME ON BLAME AND EXCUSE17. Hume's account of blame and excuse differs in fundamental respects from many contemporary ones. Many contemporary views, ultimately derived from the Kantian dictum that 'ought' implies 'can', base excuses on the nonvoluntary character of an action. For example, H. L. A. Hart argues that the basic requirements for responsibility are that a person have the capacity and a fair opportunity to do (...) what is required. A person is to be excused for an action if he lacked either the capacity or opportunity to do what was required. As these are conditions for an action being voluntary in a suitably narrow sense, Hart primarily bases excuses on the nonvoluntary character of actions. Likewise, Richard Brandt's view, which in many respects is similar to Hume's, requires that the manifestation of a character trait be subject to a high degree of voluntary control before blame.2 is appropriate. Hume, however, explicitly denies that either a character trait or its manifestation in conduct need be subject to voluntary control for blame to be appropriate. The nonvoluntary character of an action does not necessarily excuse one from blame. Hume makes four key claims about blame and excuse. (1) The ultimate objects of praise and blame are mental qualities, not actions. (2) Actions are considered only as signs of mental qualities. (3) The possession and expression of these mental qualities may be appropriate objects of praise or blame even if they are nonvoluntary. (4) Persons have excuses if their actions do not indicate enduring mental qualities. These points need to be substantiated and explained. The first two claims may be considered together. That Hume holds mental qualities are the ultimate objects of praise and blame and that actions are considered only as signs of mental qualities is indisputable. 18. 'Tis evident, that when we praise any actions, we regard only the motives that produced them, and consider the actions as signs or indications of certain principles in the mind and temper. The external performance has no merit. We must look within to find the moral quality. This we cannot do directly; and therefore fix our attention on actions, as on external signs. But these actions are still considered as signs; and the ultimate object of our praise and approbation is the motive, that produced them. For present purposes, only two points need be noted about this passage. First, it clearly states that the ultimate objects of praise and, as he indicates in his following 4 paragraph, blame are always mental qualities. The expression mental qualities is vague, perhaps deliberately so. Sometimes Hume uses the term motive instead. By 'motive' he does not intend any passing desire or further intention which one may have in acting, e.g., embarrassing others. For Hume, some motives are not even dispositions to act. Second, actions or external performances have no merit. They are only signs of mental qualities. Even if the concept of an action includes more than the external behavior, such as the intention, it does not include motives or desires. A difference in intention may entail a difference in action, but a difference in motive does not. The same action may be performed from different motives. Hence, actions are not logically connected with the objects of praise and blame. Hume's claim that actions themselves have no merit, it might be objected, is incorrect. People do constantly evaluate actions. If they did not, then actions would not be considered untoward and a basis for attributing blame. However, Hume does not deny that actions may be evaluated in some way or other, only that they alone have merit or are appropriate objects of praise and blame. Actions may be evaluated without reference to mental qualities, for example, as right or wrong, useful or unuseful. Hume is 19. chiefly concerned with evaluating actions as virtuous or vicious. The terms virtuous and vicious as applied to actions involve an element of praise and blame, whereas the terms right and wrong, at least in most of their uses, do not. Thus, Hume is not denying that actions alone may have merit in the sense of value or utility. Rather, he is denying that actions... (shrink)

There are various ways of characterising Hume’s dictum that ‘you can’t get an ought from an is.’ Contributors to the literature directly addressing this question focus on logical characterisations of autonomy theses. Such theses maintain that certain logical relations do not obtain between ethical and non-ethical sentences, for instance that no non-ethical sentences logically entail an ethical sentence. I argue that this focus on logical autonomy is a mistake. The thesis so important to our metaethicists is not a logical (...) thesis but a metaphysical one. The relevant metaphysical autonomy thesis maintains that ethical facts are not fully grounded just in non-ethical facts. I defend this characterization. I also defend the converse thesis that all facts partly grounded in ethical facts are ethical facts. I then argue that this pair of theses can help with debates about the plausibility of nihilism and the classification of revisionary metaethical theses. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:26. DAVID HUME ON REASON, PASSIONS AND MORALS Perhaps the most notorious passage in Hume's Treatise is the one that concerns the relative roles of reason and passions, where he says: Reason is, and ought only to be the slave of the passions (T 415). This psychology of action is the foundation of Hume's moral theory, wherein we find his two other notorious dicta, one being!.¡oral distinctions (...) cannot be derived from reason, and the other, Ought cannot be derived from is. Many commentators have interpreted Hume as saying that reason plays no role in the making of moral judgments, and, while not taking the rationalistic line, criticized him for not giving reason its proper due. The aim of this paper is to show that Hume's primary concern is to argue against the rationalist position which takes reason to be sufficient (always or sometimes) to move one to act, and to give rise to moral judgments. I wish to show that Hume is only concerned with dismissing the claim that reason could be a sufficient condition, not that it is a necessary one. Indeed, Hume could be interpreted as saying that reason is no less important than passions in shaping human conduct, anc in the area of inorai conduct, there can be no moral judgments without the work of reason. At the same time, however, passions remain the prime mover; reason does not move us to act (generally, hence morally). 1 shall try to show that the dictum '¿¡oral distinctions cannot be derived from reason' is essentially correct, but its being correct in no way shows that reason is not a necessary element of moral distinctions. 27. Before discussing the views of some critics of Hume's moral theory, it is important to clear up one source of misunderstanding that lies in Hume's discussion of the psychology of action. When Hume says that reason is the slave of passions, he does not say thereby that reason is unimportant. He is saying merely that reason alone does not move one to act. The force that propels one to action is the passion, whether it be love, or anger, or pride, or envy, or fear, or desire. Reason alone does not provide the motive. However, it is reason that does the groundwork, analyzing facts, perceiving relations, and drawing conclusions, all of which go to determine which action to perform, but the action will not be performed unless one of the passions is also present. Just because reason is the slave does not indicate that its work is not relevant. To extend the slavery metaphor, we may observe that slave owners supported slavery for the very reason that the slave's work was found indispensable; analogously, it must be observed that Hume is most unlikely to hole that reason plays no part in human action. To complete the analogy, we should say that while much could be achieved with slaves, it was the masters who conceived the plan, and the masters must rank higher in the causal order. We may observe further that greater achievement could be had by treating slaves properly, not overworking them, and not ill-treating them. If reason is the slave, it will be in our interest to cultivate it, sharpen it, and use it always and to the full. This could be inferred from HuTr.e's discussion of the understanding in Book 1 of the Treatise. indeed, in the conclusion of Book I, Hume points out forcefully that we contradict ourselves if we hold that no refin'd or elaborate reasoning is ever to be 28. receiv'd (T 268). For it is only through reasoning that we arrive at any such conclusion. He goes on to say: Very refin'd reflections have little or no influence upon us; and yet we do not, and cannot establish it for a rule, that they ought not to have any influence; which implies a manifest contradiction (T268). There cannot be a clearer demonstration that it is not the case that Hume fails to give reason its proper due. Later, I shall cite further evidence for this in relation specifically to the role of reason in... (shrink)

It ‘seems altogether inconceivable', says Hume, that this ‘new relation' ought ‘can be a deduction' from others ‘which are entirely different from it' The idea that you can't derive an Ought from an Is, moral conclusions from non-moral premises, has proved enormously influential. But what did Hume mean by this famous dictum? Was he correct? How does it fit in with the rest of his philosophy? And what does this suggest about the nature of moral judgements? This collection, the (...) first on this topic for forty years, assembles a distinguished cast of international scholars to discuss these questions. The book combines, historical scholarship, meta-ethics and cutting-edge research in philosophical logic. It includes three distinct attempts to reformulate and prove No-Ought-From-Is in the face of Prior's famous counterexamples. -/- Contributors: A.N. Prior, Gerhard Schurz, Charles Pigden, J.M.Shorter, Annette.C.Baier, Wade Robison, Adrian Heathcote, Alan Musgrave, Norva Y.S. Lo, Gillian Russell, Hakan Salwén, Greg Restall, Peter Vranas, Edwin Mares, Stephen Maitzen. (shrink)

Haecceitism and Hume’s Dictum are each controversial theses about necessity and possibility. According to haecceitism, there are qualitatively indiscernible possible worlds that differ only with respect to which individuals occupy which qualitative roles. According to Hume’s Dictum, there are no necessary connections between distinct entities or, as Humeans sometimes put it, reality admits of “free recombination” so any entities can co-exist or fail to co-exist. This paper introduces a puzzle that results from the combination of haecceitism and Hume’s (...) Dictum. This puzzle revolves around the free recombination of non-qualitative properties like being Socrates. After considering several responses to this puzzle, I defend an ideology-driven solution, which dispenses with non-qualitative properties like being Socrates in favour of primitive theoretical ideology while, at the same time, preserving a commitment to both haecceitism and Hume’s Dictum. (shrink)

Composition as identity, as I understand it, is a theory of the composite structure of reality. The theory’s underlying logic is irreducibly plural; its fundamental primitive is a generalized identity relation that takes either plural or singular arguments. Strong versions of the theory that incorporate a generalized version of the indiscernibility of identicals are incompatible with the framework of plural logic, and should be rejected. Weak versions of the theory that are based on the idea that composition is merely analogous (...) to identity are too weak to be interesting, lacking in metaphysical consequence. I defend a moderate version according to which composition is a kind of identity, and argue that the difference is metaphysically substantial, not merely terminological. I then consider whether the notion of generalized identity, though fundamental, can be elucidated in modal terms by reverse engineering Hume’s Dictum. Unfortunately, for realists about possible worlds, such as myself,... (shrink)

'There is nothing either good or bad, but thinking makes it so.'l But if things considered in themselves are neither good nor bad, if there is no realm of value existing independently of animate beings and their activities, then thought is not the activity that summons value into being. Hume reminds us, 'Reason is, and ought only to be the slave of the passions', and while Hume's dictum has been widely disputed, we shall defend it.2 Desire, not thought, (...) and volition, not 'cognition, are the springs of good and evil. (shrink)

Philosophers of science don't very often discuss the place of mathematics between other sciences or the meaning of mathematics for other sciences. They consider mathematics as a formal language with mainly analytical statements about the use of symbols (Carnap, Russell, Ayer ). Originally Wittgenstein defended this formalistic interpretation of mathematics in his TLP. Gradually, however, he develops himself towards an intuitionistic and ontological position, in which mathematics is conceived as the central and therefore normative part of our thought (of course (...) : on what there is and how it is). Mathematical science plays the role of logic in relation to other sciences. Its universal applicability and efficiency are consequences of its creating beings on a necessary level, in virtue of the number of its relations (always still by substitution). This highly important philosophy of mathematics (misinterpreted by Crispin Wright) starts with his lectures in Cambridge (in the thirties ) and reaches its culmination in the Remarks on the Foundations of Mathematics and in On Certainty. In a second part this philosophical determination of mathematical reasoning is traced backwards through history. David Hume's contribution is reinterpreted from a new point of view. Inside the total field of our beliefs he distinguishes between different sciences with the critérium of the intricacy of relations between items of our knowledge field. The more and stronger these relations, the more forceful and necessary their influence on the remaining parts of the system of our belief. So mathematics is in the centre, the loose reveries of our fancy on the periphery. Quine's representation of ‘the tribunal of sense experience’, by which the total field should be judged and corrected, must be disqualified. Hume's dictum ‘Whatever we conceive, we conceive it to be existent’ reveals sharply that this evaluative and corrective role is performed by the necessary thoughts (or, if one likes it so, ‘realities’) of mathematical science. That reason and especially mathematical reason is the highest judge on the population and structure of our world and a very precious heritage of Pythagorism and Platonism. From the sources of Sextus Empiricus and Aristotle the author tries to reconstruct exactly the original assertion of Pythagoristic mathematical philosophy, which has nothing to do with a naive hypostazation of numbers or a kabbalistic number mysticism. Philolaos' saying, that some propositions are stronger than we, is demonstrated to refer to mathematical laws. The pythagorical position is fully integrated in Plato's dialectical philosophy. Mathematics is the great mediator towards the intuition of true being, the ‘metaxu’ between sensible phenomena and ideas. This tradition of philosophical taxation of mathematics as the ‘logic of science’ is broken by Aristotle, who didn't use mathematics in his qualitative natural science and considered mathematics as an abstract science (about the quantitative aspect of being). Moreover, he disowned its logical role and created a special science for this task. Human reason is mathematical in so far it is sure of its language and thought, which is excellently expressed by the Greek μαθηματιxα (= what can be understood, learned and taught) and by the Dutch word ‘wiskunde’ (= science of what is certain). The remarks and reflections of Wittgenstein have produced a new perspective on the placevalue (‘Stellenwert’) of mathematics among all possible sciences and beliefs and have proven that its onto-logical purport is an unavoidable implication. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:139. COULD AN IMPRESSION BE A PROCESS? Processes are of two main kinds, depending on whether the process has or lacks culmination. I am concerned with non-culminating processes, e.g., with a burning fuse sans explosion. This is reported as secondary by any good dictionary, derived from the head, or culminating, sense of 'process'. An ontological criterion for 'process' is as follows: something is absolutely unchanging, if it is unchanging (...) in every sense of the word. Those who hold that, e.g., a monotonous sound is absolutely unchanging hold that in an absolutely unchanging universe there is no reason why there should not be such a sound. Like any absolutely unchanging existent, a sound is caught, so to speak, in an instantaneous freeze on all change. Those who opt for process hold that change is, so to speak, of its essence. Hence, in an absolutely unchanging world, there could not be a process. The question I wish to raise is not whether there are processes, and certainly not whether Hume opts for processes. It is doubtful that Hume entertained the question of process. Indeed, that is the point. One of Hume's main commentators, R. W. Church, holds that Hume's perceptual atoms, defined by his dictum that distinguishability mutually entails separability, as well as their philosophical relations, are incompatible with the thesis that "experiences exist not in succession but in process." Church goes on to say that it is "difficult to see how... 'process' can have meaning for Hume. He plainly holds perceptions and their contents to be successive merely. I begin by considering Church's reason why Hume must reject processes, and then consider an additional reason drawn from Hume's account of time. Specifically, 140. divisibility òf time terminates in unchanging atoms. The essence of process is change. Hence, no temporal atom is a process. Neither reason, I argue, suffices for holding that impressions and processes are mutually exclusive. Hume holds that distinguishability mutually entails separability. Church holds that this dictum defines Hume's perceptual atomism. To highlight the atomism it is supposed to define, he rewords it, as follows: "Whatever is distinguishable is intrinsically self-identical and therefore self-contained." What does this rewording mean? According to Church, Hume, in the body of the Treatise, holds that resemblance is qualitative identity distributed, numerically, over many complexes. "On Hume's theory of abstract ideas, 'resemblance' is a verbal term referring (in virtue of habits of association) to any case of a qualitative 4 identity numerically distributed." Further, the qualitative identity in question is not relative to any difference from another quality, Bradley to the contrary notwithstanding. Difference, for Hume, is incompatible with relation and it is itself not a relation. It follows, according to Church, that Hume's absolute self-identity mutually entails self -containment. So much for Church's version of Hume's perceptual atomism. Is it incompatible with process, as Church claims? A trombone's slide illustrates non-culminating process with succession. Let us use it as a basis for an account. A trombone's slide is unbroken not only qua sound but qua pitch. Nevertheless, it incorporates pitch multiplicity. By "successive merely" does Church mean that the transition from pitch to pitch must be broken, contrary to what is heard, and, for this reason, Hume cannot account for the slide qua process? If so, he is mistaken. 141. Distinguishability mutually entails separability for Hume, but this does not mean that the transition from pitch to pitch cannot be experienced as a slide. In fact, it is easy to show that a trombone's slide conforms to Hume's dictum, by reason of the just noticeable difference and Hume's philosophical relation of contiguity in time. We are dealing with three notions: first, distinction, and, in particular, how pitches in the slide are distinguished. Second, separability, and, in particular, how separation corresponding to distinction is guaranteed by the fact of process. Third, slide, and, in particular how Hume's philosophical relation of temporal contiguity, coupled with the just noticeable difference, guarantees phenomenal slide. I take up these three notions in the order mentioned. The distinction between two pitches in the trombone's slide is... (shrink)

Some scholars claim that epistemology of science and machine learning are actually overlapping disciplines studying induction, respectively affected by Hume's problem of induction and its formal machine-learning counterpart, the “no-free-lunch” (NFL) theorems, to which even advanced AI systems such as LLMs are not immune. Extending Kevin Korb's view, this paper envisions a hierarchy of disciplines where the lowermost is a basic science, and, recursively, the metascience at each level inductively learns which methods work best at the immediately lower level. (...) Due to Hume's dictum and NFL theorems, no exact metanorms for the good performance of each object science can be obtained after just a finite number of levels up the hierarchy, and the progressive abstractness of each metadiscipline and consequent ill-definability of its methods and objects makes science—as defined by a minimal standard of scientificity—cease to exist above a certain metalevel, allowing for a still rational style of inquiry into science that can be called “philosophical.” Philosophical levels, transitively reflecting on science, peculiarly manifest a non–empirically learned urge to self-reflection constituting the properly normative aspect of philosophy of science. (shrink)

This chapter begins with a putative puzzle between non-reductive physicalism according to which psychological properties are distinct from, yet metaphysically necessitated by, physical properties, and Hume's dictum according to which there are no necessary connections between distinct existences. However, the puzzle dissolves once care is taken to distinguish between distinct kinds of distinction: numerical distinctness, mereological distinctness, and what the chapter calls ‘weak modal distinctness’ and ‘strong modal distinctness’. For each of these notions, it turns out that either (...) it makes no sense according to non-reductive physicalism or else it is unclear whether Hume's dictum is true. The chapter then deploys these distinctions to argue first that unlike the dualist, the non-reductive physicalist can reject the exclusion principle in the causal exclusion argument, and second that emergentism can be distinguished from non-reductive physicalism. (shrink)

Various formally valid counterexamples have been adduced against the Humean dictum that one cannot derive an “ought” from an “is.” There are formal rebuttals—some very sophisticated now (e.g., Charles R. Pigden’s and Gerhard Schurz’s)—to such counterexamples. But what follows is an intuitive and informal argument against them. I maintain that it is better than these sophisticated formal defenses of the Humean dictum and that it also helps us see why it implausible to think that we can be as (...) decisive about the truth or falsity of the dictum as both the formal counterexamples or formal barriers to them purport to be. (shrink)

This chapter begins with a putative puzzle between non-reductive physicalism according to which psychological properties are distinct from, yet metaphysically necessitated by, physical properties, and Hume's dictum according to which there are no necessary connections between distinct existences. However, the puzzle dissolves once care is taken to distinguish between distinct kinds of distinction: numerical distinctness, mereological distinctness, and what the chapter calls ‘weak modal distinctness’ and ‘strong modal distinctness’. For each of these notions, it turns out that either (...) it makes no sense according to non-reductive physicalism or else it is unclear whether Hume's dictum is true. The chapter then deploys these distinctions to argue first that unlike the dualist, the non-reductive physicalist can reject the exclusion principle in the causal exclusion argument, and second that emergentism can be distinguished from non-reductive physicalism. (shrink)

Despite his well-known criticisms of popular religion, Hume refers in seemingly complimentary terms to ‘true religion’; in Dialogues Concerning Natural Religion, his character Philo goes so far as to express ‘veneration for’ it. This paper addresses three questions. First, did Hume himself really approve of something that he called ‘true religion’? Second, what did he mean by calling it ‘true’? Third, what did he take it to be? By appeal to some of his key doctrines about causation and probability, and (...) to some key features of the characters and content of the Dialogues, I argue, contrary to important recent interpretations by Immerwahr and Falkenstein, that Hume's ‘true religion’ is a doctrine, enunciated by Philo, that he regarded as true in an epistemic sense. (shrink)

Long before the current dispute in the USA about the teaching of evolution, Hume's dialogues presented and critically analyzed the idea of intelligent design. What should we teach our children about the creation of the world? What should we teach them about religion? The characters Demea, Cleanthes, and Philo passionately present and defend different answers to that question. Demea opens the dialogue with a position derived from René Descartes and Father Malebranche — God's nature is a mystery, but God's (...) existence can be proved logically. Cleanthes attacks that view, both because it leads to mysticsm and because it attempts the impossible task of trying to establish existence on the basis of pure reason, without appeal to sense experience. As an alternative, he offers a proof of both God's existence and God's nature based on the same kind of scientific reasoning established by Copernicus, Galileo, and Newton. Taking a skeptical approach, Philo presents a series of arguments that question any attempt to use reason as a basis for religious faith. He suggests that human beings might be better off without religion. The dialolgue ends without genuine agreement among the characters, justifying Hume's choice of dialogue as the form of presentation. (shrink)

Hume’s writings, taken as a whole, address a dazzlingly broad range of topics. I argue that they do so as part of a coherent and interesting philosophical programme. While Hume’s doctrine of the general point of view provides an attractive way of understanding the process of moral judgement, it raises the threat of parochialism – that is, it potentially makes us prey to the limitations and prejudices of our society. I show that Hume endorses what I call “engaged cosmopolitanism”, which (...) provides the resources to explain how we can, under certain circumstances, escape such parochialism. Engaged cosmopolitanism is the product of a particular sort of society – one that is open and commercial, and that governed by a system of equitable laws. Like Mandeville, Hume rejects the suspicion of commerce and “luxury” that was prevalent during his time. But he provides supporters of commercial society with a justification that does not, in contrast to Mandeville’s writings, abandon notions of morality altogether. On the contrary, he makes commerce a precondition to a society’s moral development. And he further links this development to a certain type of liberal political institutions, thus giving such institutions a moral basis. (shrink)

Eric Watkins has argued on philosophical, textual, and historical grounds that Kant’s account of causation in the first Critique should not be read as an attempt to refute Hume’s account of causation. In this paper, I challenge the arguments for Watkins’ claim. Specifically, I argue (1) that Kant’s philosophical commitments, even on Watkins’ reading, are not obvious obstacles to refuting Hume, (2) that textual evidence from the “Disciple of Pure Reason” suggests Kant conceived of his account of causation as such (...) a refutation, and (3) that none of Hume’s early German critics provided responses to this account that would have satisfied Kant. Watkins’ reading of Kant’s account of causation is thus more compatible with traditional views about Kant’s relationship to Hume than Watkins believes. (shrink)

David Hume's famous riddle of induction implies a second problem related to the question of whether the laws and principles of nature might change in the course of time. Claims have been made that modern developments in physics and astrophysics corroborate the translational invariance of the laws of physics in time. However, the appearance of a new general principle of nature, which might not be derivable from the known laws of physics, or that might actually be a non-physical one (...) (this means completely independent of physical science) supports the notion that the course of nature can change in time. Here it is argued that natural selection satisfies the criteria that identify a general principle of nature which so far, appears to be non-derivable from the known laws of physics and therefore, it is likely that it arose in the course of time, thus leaving open again the quest for a true solution to Hume's second problem. (shrink)

I. t. 1. buch. Über den verstand. 4. mit der zweiten übereinstimmende aufl.--II. t. 2. buch. Über die affekte (Of the passions) 3. buch. Über moral (Of morals); mit zugrundelegung einer übersetzung von frau J. Bona Meyer. 2. mit der ersten übereinstimmende aufl.

Long before the current dispute in the USA about the teaching of evolution, Hume's dialogues presented and critically analyzed the idea of intelligent design. What should we teach our children about the creation of the world? What should we teach them about religion? The characters Demea, Cleanthes, and Philo passionately present and defend different answers to that question. Demea opens the dialogue with a position derived from René Descartes and Father Malebranche — God's nature is a mystery, but God's (...) existence can be proved logically. Cleanthes attacks that view, both because it leads to mysticsm and because it attempts the impossible task of trying to establish existence on the basis of pure reason, without appeal to sense experience. As an alternative, he offers a proof of both God's existence and God's nature based on the same kind of scientific reasoning established by Copernicus, Galileo, and Newton. Taking a skeptical approach, Philo presents a series of arguments that question any attempt to use reason as a basis for religious faith. He suggests that human beings might be better off without religion. The dialolgue ends without genuine agreement among the characters, justifying Hume's choice of dialogue as the form of presentation. (shrink)

Many metaphysicians often appeal to Hume’s dictum (HD), according to which there are no necessary connections between distinct entities (or states of entities), in order to resist theories that commit us to such connections. Some have argued that HD is an unsupported dogma of metaphysics. But theories that commit us to necessary connections between distinct goings-on can also be resisted by invoking a normative twist on HD, which I call the Humean Solvent (HS): “Do not connect distinct entities (or (...) states of entities) beyond necessity”. HS is a principle of structural parsimony – assuming that a theory is structurally more parsimonious than another when the latter is committed to a more connected ontology than the former is. Just as Ockham’s ‘razor’ encourages us to cut down superfluous ontological commitments, the Humean ‘solvent’ encourages us to dissolve dispensable metaphysical glue: we ought not to glue elements of our ontology beyond necessity. HS has both a qualitative and a quantitative dimension: qualitatively, it encourages us to avoid using metaphysical glues that are unnecessarily strong, the strongest of which being metaphysically necessary connections; quantitatively, it encourages us not to metaphysically glue things that need no gluing. Thus, given HS, other things being equal, what is worst is a theory that entails that everything is metaphysically necessarily connected to anything else and what is best is a theory that leaves all things loose and separable. In this paper, I will first compare HD and HS as grounds for paradigmatic Humean doctrines in contemporary metaphysics, then I will argue that structural parsimony is neither a variety of ontological nor of ideological parsimony; finally, I will offer an argument for HS. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 38.2 (2000) 221-238 [Access article in PDF] Hume's Iterative Probability Argument: A Pernicious Reductio Kevin Meeker University of South Alabama In this essay I want to look afresh at David Hume's iterative probability argument, found in the section entitled "Of Scepticism with regard to Reason" in his A Treatise of Human Nature.1 Interestingly enough, after years of comparative neglect,2 this argument (...) has been basking in the glow of scholarly sunshine lately.3 But to what can we attribute its extended hiatus? The convergence of three major factors seems responsible. First, philosophers have oftentimes flung this argument into the ocean of obscurity because of its perceived inadequacies.4 Second, and on a related note, many assume that Hume himself permitted this argument to drown because it never resurfaces again in his writings. Most suspiciously, Hume's Enquiry Concerning Human Understanding, which is his popular (and preferred) presentation of the epistemological sections [End Page 221] of the Treatise, does not contain this argument.5 Last, but certainly not least, for a long time this argument sat uncomfortably with the naturalist interpretation of Hume6 that has gained ascendancy in the twentieth century. For prior to this century, Hume was almost unanimously regarded as a sceptic. Despite a few waves from those who interpreted Hume as a logical positivist earlier in this century, Norman Kemp Smith charted a new course for Humean interpretations with his emphasis on Hume's naturalism.7 And this is the current according to which most Hume interpreters set their sails today.Because the naturalist reading of Hume relies so heavily on the system he attempts to set forth in the Treatise, though, naturalists have come to see the importance of reading this argument in a naturalistically acceptable way. William E. Morris best expresses the significance of this argument from a naturalistic perspective in the following manner: If we ever are to understand Hume's view of the role of reason, it stands to reason that we should first figure out how to integrate "Of scepticism with regard to reason" into the picture. Only then will we be ready to move to a consideration of Hume's positive views about reason. These views are the least understood of any of Hume's doctrines. Gaining an adequate understanding of them is both the most pressing and the most difficult problem facing Hume studies today.8While I agree with Morris about the importance of getting a clear understanding of the reasoning of I, iv, 1, I will argue that a correct reading of this section reveals the implausibility of major naturalistic interpretations of Hume.This paper has four major sections. In the first important section, I will highlight the crucial aspects of the iterative argument that will be the focus of this paper and deal with a preliminary but important interpretive issue. In the second section, I will briefly look at Annette Baier's naturalistic reading of Hume's philosophy to show how this particular passage bears on broader [End Page 222] interpretive issues. The third main section will focus on explicating Morris' similar but more detailed interpretation. Finally in the last part I will show that while it is legitimate to characterize the argument here as a reductio (as Baier and Morris both do), the argument still yields, contrary to what naturalists have recently suggested, a very sceptical conclusion. 1. The Arguments of Section I, IV, 1 of the TreatiseHume's "Of Scepticism with regard to Reason" contains at least two important arguments. While Hume agrees that knowledge involves certainty (whereas beliefs based on probability are by their very nature uncertain9 ), the conclusion of his first argument is that "all knowledge resolves itself into probability" (Treatise, 181). His point here is simply that all of our beliefs are fallible. That is, nothing is absolutely certain; thus none of our beliefs attain the exalted status of certain knowledge. But once this consequence of our fallibility is recognized, he then argues roughly that the probability that any particular belief... (shrink)

This paper argues that a recurrent mistake is made about Scottish moral philosophy in the 18th century with respect to its account of the relation between morality and feeling. This mistake arises because Hume is taken to be the main, as opposed to the best known, exponent of a version of moral sense theory. In fact, far from occupying common ground, the other main philosophers of the period—Hutcheson, Reid, Beattie—understood themselves to be engaged in refuting Hume. Despite striking surface similarities, (...) closer examination reveals a deep difference between Hume's and Reid's conception of ‘the science mind’ which marked the philosophy of the period. Properly understood, this difference shows that mainstream Scottish moral philosophy, far from subscribing to Hume's dictum about morality being ‘more properly felt than judged of’, held that morality is ‘more properly judged than felt of’. (shrink)

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