Spinoza's response to a certain radical form of scepticism has deep and surprising roots in his rationalist metaphysics. I argue that Spinoza's commitment to the Principle of Sufficient Reason leads to his naturalistic rejection of certain sharp, inexplicable bifurcations in reality such as the bifurcations that a Cartesian system posits between mind and body and between will and intellect. I show how Spinoza identies and rejects a similar bifurcation between the representational character of ideas or mental states and the (...) epistemic status of these ideas, a bifurcation to which Spinoza sees the radical sceptic committed. Spinoza's rejection of this bifurcation helps to explain some of his most cryptic statements concerning scepticism and also reveals a promising and highly metaphysical strategy for understanding and responding to scepticism. (shrink)

This volume delves into the question of how, in an Iberian world apparently far removed from the battlegrounds of modernity and secularisation, doubt and unbelief found fertile soil, stimulated by social and religious developments. Adopting a multidisciplinary perspective, the contributors show how the crisis of identity produced by forced mass conversion touched off inner crises about the nature of Truth. By tracing the path from medieval Spain to the Spanish Inquisition, and from the great literary and artistic works of the (...) Spanish Baroque to Sephardic Marranism, this volume fills a historiographical gap in European social and intellectual history, demonstrating the importance of the Iberian world in the evolution of European scepticism. Mercedes García-Arenal is Research Professor at CSIC, Madrid, and Stefania Pastore is Associate Professor at the Scuola Normale Superiore di Pisa. They work on tolerance and dissent in Early Modern Iberia: on forced conversion, on the violent world of the Inquisition and the debates and protests that it sparked, and on the complex interplay of minorities. They have recently collaborated on After Conversion. Iberia and the Emergence of Modernity (Brill, 2016) and, as editors, Visiones imperiales y profecía. Roma, España, Nuevo Mundo (Abada, 2018). (shrink)

Do Hume and Kant hold strongly divergent views about the causal principle, viz. the principle that every event or change of state in nature must have a cause? It has traditionally been held that they do, and on the ground that while Hume claims that there is no justification for the principle’s acceptance, Kant claims that the principle can be shown to be necessary for the possibility of experience. However, I argue that, on Hume’s account of how we come to (...) believe in the existence of external objects, it is not possible for us to perceive any external object that is changing its state randomly or acausally. Accordingly, Hume is no position to deny that the causal principle can be justified, given he acknowledges, like Kant, that we do believe ourselves capable of perceiving events, or changes of state, in nature. Equally, Kant is no position to claim to have answered Hume’s scepticism about the causal principle given he acknowledges, like Hume, that the objects of the senses are, in reality, merely appearances and not things in themselves. (shrink)

The objective of the paper is to seek clarification on the relationship between epistemic relativism and scepticism. It is not infrequent to come across contemporary discussions of epistemic relativism that rely upon aspects of scepticism and, vice versa, discussions of scepticism drawing upon aspects of relativism. Our goal is to highlight the difference between them by illustrating that some arguments thought to be against relativism are actually against scepticism, that there are different ways of understanding the (...) relationship between relativism and scepticism, and that a commitment to either relativism or scepticism does not entail commitment to the other. The paper focuses upon the works of Peter Unger and Paul Boghossian to show how this terrain can be variously conceived and to illustrate that Boghossian's conception of the landscape is incorrect. (shrink)

In a joint article1 with Wenceslaus Kwindingwi, Bernard Matolino declared an end to ubuntu. The declaration, they argue, is a result of the failure of ubuntu in practice and theory in modern African societies. This declaration triggered strong reactions, and an analysis of these responses suggests the need for continuous interrogations of African ideals and beliefs and their relevance to modern African thought. In this article, I argue that Kwindingwi and Matolino’s argument is in line with Matolino’s broader scepticism (...) about Afro-communitarianism in general. In other works, he insists that attempts to theoretically and practically ground postcolonial African philosophy in ideas of Afro-communitarianism exaggerate its functionality. I aim to show that Matolino’s Socratic process and the outcomes, as demonstrated in the “The end of ubuntu”, aim to produce quality understanding and reasoned defence of the traditional ideas aimed to guide modern African thought. The rejectionist approach should be seen as a nudge to make the advocacy for African ideals and beliefs, such as ubuntu, match up with the knowledge of them and how they operate in reality. (shrink)

The following semantics for counterfactuals is fairly standard: for a counterfactual to be true, the closest antecedent worlds have to be consequent worlds. Closeness is measured by overall similarity of worlds to an evaluation world. There is a range of interrelated challenges to this account: counterfactual scepticism, ‘Hegel’-, ‘Sobel’-, and ‘Heim’-sequences. So far there is no unified solution to these challenges. I discuss a solution that preserves the standard semantics by writing the shifty parameter into pragmatics. The solution has (...) been suggested by Križ for Sobel- and Heim-sequences, yet I argue that it can be generalized to counterfactual scepticism. Conditionals are subject to a pattern which is familiar from descriptions. Everyday counterfactuals are semantically homogeneous and pragmatically non-maximal. Homogeneity: a counterfactual is neither true nor false if only some but not all closest antecedent worlds are consequent worlds. Non-maximality: in many contexts, not all but only practically all closest antecedent worlds have to be consequent worlds for the utterance of a counterfactual to say something true if the difference does not matter for the purposes of conversation. (shrink)

This book, which originated as the author's 2013 Oxford dissertation, treats five modes of argument described by the Pyrrhonian skeptic Sextus Empiricus. In the first book of the Outlines of Pyrrhonism, Sextus claims that these modes bring about suspension of judgment, a mental state in which one finds the considerations for and against some claim to be balanced. We see the modes used both alone and in combination when Sextus investigates dogmatic philosophy. Accordingly, Sienkiewicz assigns a chapter to each mode (...) and concludes with how they might work together. This book has much to commend it: Sextus's text is clearly explained... (shrink)

Radical scepticism contends that our knowledge of the external world is impossible. Particularly, radical scepticism can be motivated by the closure principle. Several commentators have noted that a straightforward way to respond to such arguments is via externalist strategies, e.g., Goldman, Greco, Bergmann. However, these externalist strategies are not effective against a slightly weaker form of the argument, a closure principle for rationally grounded knowledge, closureRK.\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${closure}_{RK.}$$\end{document} The sceptical argument, framed (...) around the closureRK\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {closure}_{\mathrm{RK}}$$\end{document} principle, targets rationally grounded knowledge. Although externalist strategies are ineffective against this form of argument, its conclusion can nonetheless be resisted by combining, in a novel way, the resources of Wittgenstein and Davidson. In particular, I argue that the sceptic is assuming an unrestricted way of using the closureRK\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {closure}_{\mathrm{RK}}$$\end{document} principle, which is incorrect. Alternatively, I argue for The Conditionality of Rational Support Thesis, i.e., the thesis that rational support via competent deduction is conditional. In particular, rational support must be provided within an evaluative system in which hinge propositions are presupposed and contentful beliefs are being evaluated. In the end, we can resist the closureRK\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {closure}_{\mathrm{RK }}$$\end{document}-based sceptical argument while retaining the closureRK\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbox {closure}_{\mathrm{RK}}$$\end{document} principle. (shrink)

Scepticism about ought simpliciter is the view that there is no such thing as what one ought simpliciter to do. Instead, practical deliberation is governed by a plurality of normative standpoints, each authoritative from their own perspective but none authoritative simpliciter. This paper aims to resist such scepticism. After setting out the challenge in general terms, I argue that scepticism can be resisted by rejecting a key assumption in the sceptic’s argument. This is the assumption that standpoint-relative (...) ought judgments bring with them a commitment to act in accordance with those judgments. Instead, I propose an alternative account of our normative concepts according to which only ought simpliciter judgments commit one to acting in accordance with those judgments. In addition to answering the sceptical challenge, the proposal offers an independently motivated account of what makes a concept normatively authoritative. (shrink)

It is widely thought that sceptical arguments, if correct, would show that everyday empirical knowledge‐claims are false. Against this, I argue that the very generality of traditional sceptical arguments means that there is no direct incompatibility between everyday empirical claims and sceptical scenarios. Scepticism calls into doubt, not ordinary empirical beliefs, but philosophical attempts to give a deep ontological explanation of such beliefs. G. E. Moore's attempt to refute scepticism (and idealism) was unsuccessful, because it failed to recognise (...) that philosophical scepticism operates on a different level from that on which we make – or doubt – particular empirical claims. And, as I argue with specific reference to work by Nozick and Fogelin, Moore’s basic confusion is still widely shared in contemporary discussions of scepticism. (shrink)

Arguments for scepticism about perceptual knowledge are often said to have intuitively plausible premises. In this discussion I question this view in relation to an argument from ignorance and argue that the supposed persuasiveness of the argument depends on debatable background assumptions about knowledge or justification. A reasonable response to scepticism has to show there is a plausible epistemological perspective that can make sense of our having perceptual knowledge. I present such a perspective. In order give a more (...) satisfying response to scepticism, we need also to consider the standing of background beliefs. This is required since the recognitional abilities that enable us to have perceptual knowledge are informed by, or presuppose, a picture or conception of the world the correctness of which we have not ascertained. The question is how, in the face of this, to make sense of responsible belief-formation. In addressing this problem I make a suggestion about the standing of certain crucial beliefs linking appearances with membership of kinds. (shrink)

Scepticism does not argue that no one knows to avoid self-referential refutation. It falls back to arguing that no one knows that anyone knows, hence simply that no one knows, in accordance with the principle Kp iff KKp. This principle, however, is not available to the sceptic. He is stuck with -KKp without access to -Kp. The sceptic is thus no threat to the sort of knowledge that like Moore we all claim to have.

Scepticism, Knowledge, and Forms of Reasoning is an attempt to resolve how best to respond to such vexing arguments, a matter on which there is no consensus ...

ABSTRACTMany philosophers have suggested that disagreement is good grounds for scepticism. One response says that disagreement-motivated scepticism can be mitigated to some extent by the thesis that philosophical disputes are often verbal, not genuine. I consider the implications of this anti-sceptical strategy, arguing that it trades one kind of scepticism for others. I conclude with suggestions for further investigation of the epistemic significance of the nature of philosophical disagreement.

How can experience provide knowledge, or even justified belief, about the objective world outside our minds? This volume presents original essays by prominent contemporary epistemologists, who show how philosophical progress on foundational issues can improve our understanding of, and suggest a solution to, this famous sceptical question.

Analytic rejections of extreme traditional views, especially scepticism, as ?absurd? in some sense of violating ?rules? of discourse, arc considered. References to linguistic and pragmatic rules are discussed and found inadequate as bases for rejecting scepticism. References to logical principles alone are found to lead into scepticism. The claim that epistemology and scepticism take for granted an inadequate theory of words like ?know?, or ?knowledge?, as descriptive predicates, is considered. Alternatives, construing such words as appraisive or (...) performative, are discussed, but are not found to provide any real escape from the traditional epistemological issues, or from scepticism. (shrink)

Exegetical scepticism is a strand of scepticism about meaning running through the German Enlightenment. This paper provides the first modern account of its tenets, critics, and proponents, and argues that it shares essential features with modern varieties of meaning-scepticism that have been a preoccupation among philosophers of language since the middle of the twentieth century. I argue that exegetical scepticism is a type of epistemological scepticism first introduced as a philosophical position in a theological debate (...) between August Pfeiffer (1640–1698) and Philipp Jacob Spener (1635–1705). Under contention, so I argue, was the idea that interpretation is never certain because it is necessarily underdetermined by the evidence. Following the effects of this controversy, I show that exegetical scepticism caused a great deal of unrest in German letters in the eighteenth century and can be seen to contribute to the great proliferation of hermeneutical theories in the Aufklärung, indeed to the very birth of hermeneutics as a standalone discipline. Bringing this type of scepticism to contemporary attention supports a reassessment of issues at the heart of meaning-scepticism and hermeneutics itself, and a reconsideration of the histories of Enlightenment scepticism and hermeneutics. (shrink)

The Renaissance sceptic and medical doctor Francisco Sanchez has been rather unduly neglected in scholarly work on Renaissance scepticism. In this paper I discuss his scepticism against the background of the ancient distinction between Academic and Pyrrhonian scepticism. I argue that Sanchez was a Pyrrhonist rather than, as has been claimed in recent years, a mitigated Academic sceptic. In keeping with this I shall also try to show that Sanchez was crucially influenced by the ancient medical school (...) of empiricism, a school closely allied with Pyrrhonism. (shrink)

A commonly expressed worry in the contemporary literature on the problem of epistemological scepticism is that there is something deeply intellectually unsatisfying about the dominant anti-sceptical theories. In this paper I outline the main approaches to scepticism and argue that they each fail to capture what is essential to the sceptical challenge because they fail to fully understand the role that the problem of epistemic luck plays in that challenge. I further argue that scepticism is best thought (...) of not as a quandary directed at our possession of knowledge simpliciter, but rather as concerned with a specific kind of knowledge that is epistemically desirable. On this view, the source of scepticism lies in a peculiarly epistemic form of angst. It is always by favour of Nature that one knows something. [Wittgenstein 1969: §505]. (shrink)

I have argued for a kind of ‘counterfactual scepticism’: most counterfactuals ever uttered or thought in human history are false. I briefly rehearse my main arguments. Yet common sense recoils. Ordinary speakers judge most counterfactuals that they utter and think to be true. A common defence of such judgments regards counterfactuals as context-dependent: the proposition expressed by a given counterfactual can vary according to the context in which it is uttered. In normal contexts, the counterfactuals that we utter are (...) typically true, the defence insists, while granting that there may be more rarefied contexts in which they are false. I give a taxonomy of such contextualist replies. One could be a contextualist about the counterfactual connective, about its antecedent, or about its consequent. I offer some general concerns about all these varieties of contextualism. I then focus especially on antecedent-contextualism, as I call it. I firstly raise some high-level objections to it. Then, I look at such a contextualist account due to Sandgren and Steele. I think it has many virtues, but also some problems. I conclude with some avenues for future research. (shrink)

Nursing ethics centres on how nurses ought to respond to the moral situations that arise in their professional contexts. Nursing ethicists invoke normative approaches from moral philosophy. Specifically, it is increasingly common for nursing ethicists to apply virtue ethics to moral problems encountered by nurses. The point of this article is to argue for scepticism about this approach. First, the research question is motivated by showing that requirements on nurses such as to be kind, do not suffice to establish (...) virtue ethics in nursing because normative rivals (such as utilitarians) can say as much; and the teleology distinctive of virtue ethics does not transpose to a professional context, such as nursing. Next, scepticism is argued for by responding to various attempts to secure a role for virtue ethics in nursing. The upshot is that virtue ethics is best left where it belongs – in personal moral life, not professional ethics – and nursing ethics is best done by taking other approaches. (shrink)

Saul_Jennifer, Scepticism and Implicit Bias.

The idea that Western philosophy is a footnote to Plato is simplistic and inaccurate. Much of modern and contemporary epistemology owes a debt not so much to Platonism or Aristotelianism as to their antithesis: scepticism. Recent discussions in the history of philosophy have sparked a great deal of interest in the ancient sceptics, but until now they have been misunderstood and the significance of their philosophy not fully appreciated.

1. Quassim Cassam's subtle book, The Possibility of Knowledge, 1 contains many insights. My goal here is not to attempt to give a sense of all that this book has to offer – which I suspect would be foolhardy in the extreme – but rather to explore one particular central theme of this book that I find especially interesting – viz. the application of the ‘multi-level’ response to ‘how possible?’ questions that Cassam offers to the problem of radical scepticism.2. (...) A central contention of Cassam's book is that we should re-cast sceptical problems in terms of ‘how possible?’ questions. Although it is not a sceptical problem that Cassam examines himself , consider how this re-casting would work as regards the problem of free will. The relevant ‘how possible?’ question would be: " How is free will possible?" There are two features of ‘how possible?’ questions that are important for our purposes. The first is that they are by their nature challenging in that they imply that there is a standing obstacle to the possibility in question. In the case of , this obstacle is the familiar one concerning determinism. The second is that they do not presuppose that the target thing – in this case free will – is impossible; rather, they simply ask how such a thing could be possible.These two features of ‘how possible?’ questions impose constraints on what would constitute a satisfactory response to such a question. On the one hand, it would clearly be pointless to respond to such a question by simply insisting – on the basis of commonsense, say – that the target thing is possible, since the question was not suggesting …. (shrink)

David Hume is famous as a sceptical philosopher but the nature of his scepticism is difficult to pin down. Hume's True Scepticism provides the first sustained interpretation of Part 4 of Book 1 of Hume's Treatise: his deepest engagement with sceptical arguments, in which he notes that, while reason shows that we ought not to believe the verdicts of reason or the senses, we do so nonetheless. Donald C. Ainslie addresses Hume's theory of representation; his criticisms of Locke, (...) Descartes, and other predecessors; his account of the imagination; his understanding of perceptions and sensory belief; and his bundle theory of the mind and his later rejection of it. (shrink)

This paper replies to Peter Millican (Mind, 2009), who argues that Hume denies the possible existence of causal powers which underlie the regularities that we observe in nature. I argue that Hume's own philosophical views on causal power cannot be considered apart from his mitigated skepticism. His account of the origin of the idea of causal power, which traces it to a subjective impression, only leads to what he calls ‘Pyrrhonian scepticism’. He holds that we can only escape such (...) excessive skepticism by way of a natural judgment based on the association of ideas, which forms the basis of what he calls ‘a legitimate ground of Assent’. (shrink)

Perhaps the most dominant anti‐sceptical proposal in recent literature –advanced by such figures as Stewart Cohen, Keith DeRose and David Lewis –is the contextualist response to radical scepticism. Central to the contextualist thesis is the claim that, unlike other non‐contextualist anti‐sceptical theories, contextualism offers a dissolution of the sceptical paradox that respects our common sense epistemological intuitions. Taking DeRose's view as representative of the contextualist position, it is argued that instead of offering us an intuitive response to scepticism, (...) contextualism is actually committed to a revisionist stance as regards our everyday usage of epistemic terms. In particular, it is argued that the thesis fails to present a satisfactory explication of a notion –that of‘epistemic descent’– that is pivotal to the anti‐sceptical import of the account. On the positive side, however, it is claimed that although the contextualist response to scepticism is ultimately unsatisfying, DeRose's theory does contain within it the framework for a completely different ‐ and far more persuasive ‐ account of the‘phenomenology’of scepticism which runs along non‐contextualist lines. (shrink)

It is not unusual for epistemologists to argue that ordinary epistemic practice is a setting within which (infallibilist) scepticism will not arise. Such scepticism is deemed to be an alien invader, impugning such epistemic practice entirely from without. But this paper argues that the suggested sort of analysis overstates the extent to which ordinary epistemic practice is antipathetic to some vital aspects of such sceptical thinking. The paper describes how a gradualist analysis of knowledge can do more justice (...) to what sceptics seek to achieve – while also showing how sceptical thinking can even be part of (and is able to have some muted epistemic impact within) ordinary epistemic practice. (shrink)

Presents Nietzsche's critical reflections directed at traditional metaphysical categories such as the external world, substance, causation, and self. Targeted theories include the doctrine of substance qua substratum for properties; the Lockean ontology of powers inherent in external objects; the construal of the self as either mental substance or transcendental subjects; atomism; and the belief in the explanatory powers of Newtonian force. It is argued that there is a pervasive general line of scepticism in Nietzsche's later thought concerning the possibility (...) of knowledge as rationally justified true belief. The chapter concludes with a defence of Nietzsche's general scepticism against a variety of countervailing arguments. (shrink)

The relation of scepticism to infallibilism and fallibilism is a contested issue. In this paper I argue that Cartesian sceptical arguments, i.e. sceptical arguments resting on sceptical scenarios, are neither tied to infallibilism nor collapse into fallibilism. I interpret the distinction between scepticism and fallibilism as a scope distinction. According to fallibilism, each belief could be false, but according to scepticism all beliefs could be false at the same time. However, to put this distinction to work sceptical (...) scenarios have to be understood as ignorance-possibilities, not as error-possibilities. To show that scepticism is not tied to infallibilism I reject the principle of unrestricted relevance according to which any error- or ignorance-possibility whatsoever is relevant. Instead I argue that the sceptic should distinguish between local and global ignorance-possibilities. Global ignorance-possibilities are relevant even though not all ignorance-possibilities are relevant. The result is a refined version of the Cartesian sceptical argument that avoids two traps other versions do not avoid. (shrink)

According to the standard view, Montaigne’s Pyrrhonian doubts would be in the origin of Descartes’ radical Sceptical challenges and his cogito argument. Although this paper does not deny this influence, its aim is to reconsider it from a different perspective, by acknowledging that it was not Montaigne’s Scepticism, but his Stoicism, which played the decisive role in the birth of the modern internalist conception of subjectivity. Cartesian need for certitude is to be better understood as an effect of the (...) Stoic model of wisdom, which urges the sage to build an inner space for self-sufficiency and absolute freedom. (shrink)

The ‘standard interpretation’ of John Taurek’s argument in ‘Should the Numbers Count?’ imputes two theses to him: first, ‘numbers scepticism’, or scepticism about the moral force of an appeal to the mere number of individuals saved in conflict cases; and second, the ‘equal greatest chances’ principle of rescue, which requires that every individual has an equal chance of being rescued. The standard interpretation is criticized here on a number of grounds. First, whilst Taurek clearly believes that equal chances (...) are all-important, he actually argues for a position weaker than the equal greatest chances principle. Second, the argument Taurek gives for the importance of equal chances ought to commit him to being more hospitable to the significance of numbers than he seems to be. Third, and as a result, Taurek should not have dismissed the significance of numbers but embraced a form of pluralism instead. Fourth, this result should be welcomed, because pluralism is more plausible than either the equal greatest chances principle or the saving the greater number principle. (shrink)

This chapter contains sections titled: Introduction Quine on Indeterminacy of Translation: The Argument from Below Quine on Indeterminacy of Translation: The Argument from Above Kripke's Wittgenstein's Attack on Meaning Conclusion.