When is it permissible to rely on a proposition in practical reasoning? Standard answers to this question face serious challenges. This paper uses these challenges to motivate a certainty norm of practical reasoning. This norm holds that one is permitted to rely on p in practical reasoning if and only if p is epistemically certain. After developing and defending this norm, I consider its broader implications. Taking a certainty norm seriously calls into question traditional assumptions about the importance (...) of belief and knowledge. In particular, it raises the possibility that many epistemological jobs that are usually assigned to belief and knowledge should be reallocated to two related but importantly different states: psychological and epistemic certainty. (shrink)

Exploring Certainty: Wittgenstein and Wide Fields of Thought considers how, where, and to what extent the thoughts and ideas found in Wittgenstein’s On Certainty can be applied to other areas of thought, including: ethics, aesthetics, religious belief, mathematics, cognitive science, and political theory. Robert Greenleaf Brice opens new avenues of thought for scholars and students of the Wittgensteinian tradition, while introducing original philosophies about human knowledge and cognition.

Reading Certainty offers incisive historical analysis of the foundational questions of the Christian tradition: how are we to read scripture, and how can we know we are saved? This collection of essays honors the work and thought Susan E. Schreiner by exploring the import of these questions across a wide range of time periods. With contributions from renowned scholars and from Schreiner's students from her more than three decades of teaching, each of the contributions highlights the nexus of (...) class='Hi'>certainty, perception, authority, and exegesis that has defined her scholarly work. Intellectual historians, early modernists, and scholars of Christianity will all appreciate this testament to Schreiner's influence. Contributors include: Vincent Evener, Bruce Gordon, Ralph Keen, Mark Lambert, Kevin J. Madigan, Richard A. Muller, Willemien Otten, Daniel Owings, Elizabeth Palmer, Karen Park, Barbara Pitkin, Ronald K. Rittgers, William Schweiker, Jonathan Strom, and Matthew Vanderpoel. (shrink)

When we engage in practical deliberation, we sometimes engage in careful probabilistic reasoning. At other times, we simply make flat out assumptions about how the world is or will be. A question thus arises: when, if ever, is it rationally permissible to engage in the latter, less sophisticated kind of practical deliberation? Recently, a number of authors have argued that the answer concerns whether one knows that p. Others have argued that the answer concerns whether one is justified in believing (...) that one knows that p. Against both of these, this paper argues that the answer concerns whether p is ‘practically certain’—that is, whether the actual epistemic probability that p differs from epistemic certainty that p only in ways that are irrelevant to the decision one currently faces. (shrink)

After Certainty offers a reconstruction of the history of epistemology, understood as a series of changing expectations about the cognitive ideal that we might hope to achieve in this world. Pasnau ranges widely over philosophy from Aristotle to the 17th century, and examines in some detail the rise of science as an autonomous discipline.

After Certainty: A History of Our Epistemic Ideals and Illusions, by PasnauRobert. New York, NY: Oxford University Press, 2017. Pp. 384.

During the 1630s Descartes recognized that he could not expect all legitimate claims in natural science to meet the standard of absolute certainty. The realization resulted from a change in his physics, which itself arose not through methodological reflections, but through developments in his substantive metaphysical doctrines. Descartes discovered the metaphysical foundations of his physics in 1629-30; as a consequence, the style of explanation employed in his physical writings changed. His early methodological conceptions, as preserved in the Rules and (...) sketched in Part Two of the Discourse, pertained primarily to his early work in optics. By the early 1630s, Descartes was concerned with new methodological problems pertaining to the postulation of micro-mechanisms. Recognition of the need to employ a method of hypothesis led him to lower the standard of certainty required of particular explanations in his mature physics. (shrink)

This book provides a comprehensive study of the origins of seminal early modern debates on the certainty and ontology of mathematics. It analyzes Alessandro Piccolomini's De certitudine mathematicarum (1547), a work that ignited widespread controversy by challenging the scientific status of mathematics. The study delves into Piccolomini's logical doctrines, his philosophy of mathematics, and his perspectives on the relationship between mechanics and natural philosophy. Special attention is given to Piccolomini's ancient and medieval sources, the 16th-century rediscovery of Proclus' In (...) Euclidem, and the influence of Priscian's In De Anima. (shrink)

In this paper Peter Klein's criticism of Wittgenstein in "Certainty: A Refutation of Scepticism" is addressed. Klein claims that, according to Wittgenstein, we attribute knowledge of a proposition p to a person only if that person is not certain of p. I argue that a careful reading of Wittgenstein's On Certainty reveals that there are two kinds of objective certainty that Wittgenstein had in mind; propositional objective certainty and normative objective certainty. Klein fails to distinguish (...) between the two and uses what I call propositional objective certainty to make his point against Wittgenstein. I claim that when Wittgenstein said that knowledge and certainty belong to different categories he was talking of normative objective certainty and, therefore, that Klein's criticism is misplaced and attributes to Wittgenstein a position that is not his. (shrink)

Rich with historical and cultural value, these works are published unaltered from the original University of Minnesota Press editions.

Certainty The following article provides an overview of the philosophical debate surrounding certainty. It does so in light of distinctions that can be drawn between objective, psychological, and epistemic certainty. Certainty consists of a valuable cognitive standing, which is often seen as an ideal. It is indeed natural to evaluate lesser cognitive standings, in particular … Continue reading Certainty →.

What are the limits of Left Wittgensteinianism's point- and need-based account of conceptual change? Based upon Wittgenstein's account of certainty and the riverbed analogy for conceptual change in On Certainty, the question is raised whether Queloz and Cueni's redevelopment of Left Wittgensteinianism can account for the multiplicitous forms of change these concepts are subject to. I argue that Left Wittgensteinianism can only partially do so, because it overemphasises the role of criticism-driven conceptual change, due to its focus on (...) the reason-based contingency of the practices of a local ‘we’. In response, it is argued that Left Wittgensteinianism should be fortified with (i) gradual changes to concepts' sociocultural constraints that concept-users are unaware of and (ii) evolutionary and environmental changes to the biological determinants of natural constraints of conceptual cores. In the end, there are conceptual practices like holding for certain that are generally, and fully contingent, but simultaneously inevitable not only for ‘us’ but also for many other delimitations of ‘we’. Subsequently, the compatibility of this Wittgensteinian account of conceptual change with pragmatic genealogy is discussed. It is concluded that thinking about conceptual changes to practices cannot be about the possibility of criticism alone nor succeed without the inclusion thereof. (shrink)

Delusions are unhinged hinge certainties. Delusions are defined as strongly anchored beliefs that do not change in the face of adverse evidence. The same goes for Wittgensteinian certainties. My paper refines the so-called framework views of delusion, presenting an argument that epistemically speaking, considering them to be certainties best accounts for delusions’ doxastic profile. Until now there has been little argument in favour of this position and the original proposals made too extreme predictions about the belief systems of delusional patients. (...) I show that my account fares better with the diverse objections that have been raised against older framework views of delusion (Campbell 2001, Gipps and Rhodes 2008). Finally, I examine what makes a harmless hinge into a pathological delusion. (shrink)

On Certainty continues Rescher s longstanding practice of publishing occasional studies that form part of a wider program of investigation of the scope and limits of rational inquiry in the pursuit of understanding. And pragmatism forms a subtextual Leitmotiv of these essays, seeing that the linking idea at work throughout is that knowledge is a tool for the management of our theoretical and practical affairs, and that what we ask of it is serviceability for the uses we have in (...) view.". (shrink)

Michael G. Titelbaum presents a new Bayesian framework for modeling rational degrees of belief—the first of its kind to represent rational requirements on agents who undergo certainty loss.

I consider the relationship between the notion of certainty and the notion of a form of life. There are circumstances under which a feeling of certainty may become the ground for adopting a certain form of life. The forms of life I have in mind are those with a formal orientation towards the realization of the (morally) good for its own sake. The article proceeds in three steps: First I consider Luther’s certainty of salvation as a kind (...) of inaugural (theological) reflection on what will be called immediate certainty as the basis for a form of life aiming at the realization of the morally good for its own sake. With reference to Kierkegaard’s “Either-Or” I then try to show that such an immediate certainty can also be considered as the ground of an ethical form of life without religious implications. With the help of contemporary cognitive psychology I will finally propose an explanation of such a certainty as one that we experience because of our universal cognitive and conative constitution. The three steps amount to a universalization and naturalization of Luther’s certainty of salvation. (shrink)

This volume combines philosophy, the social theory of knowledge, and historical analysis to present a comprehensive study of the idea of certainty as defined in the Western and Chinese intellectual traditions. Philosophical ideas such as certainty are the products of deeply layered socio-historical constructions. The author shows how the highly abstract idea of certainty in philosophical discourse is connected to the concrete social process from which the meaning of certainty is derived. Three different versions of (...) class='Hi'>certainty--in modern Western thought, in German Idealism, and in traditional Chinese philosophy--are examined in the context of a historical-comparative study of Western and Chinese social processes. Three versions of the idea of certainty are represented by the three distinct philosophical discourse and societies explored in this book. However, the pursuit of certainty transcends culture as a fundamental aspect of philosophical thought. This in-depth study shows how the social genesis and function in philosophy of the specific meaning of certainty has been delineated through a process of complex idealogical negotiation by dominant social groups--the bourgeoisie in modern Western Europe, the nobility and state bureaucrats in 18th- and 19th-century Germany, and the landed gentry in traditional China. The author concludes by suggesting new avenues for study inspired by his research. (shrink)

Researchers have debated whether knowledge or certainty is a better candidate for the norm of assertion. Should you make an assertion only if you know it's true? Or should you make an assertion only if you're certain it's true? If either knowledge or certainty is a better candidate, then this will likely have detectable behavioral consequences. I report an experiment that tests for relevant behavioral consequences. The results support the view that assertability is more closely linked to knowledge (...) than to certainty. In multiple scenarios, people were much more willing to allow assertability and certainty to come apart than to allow assertability and knowledge to come apart. (shrink)

Philosophers frequently treat certainty as some sort of absolute, while ordinary men typically do not. According to the Theory of Important Criteria, on which the present paper is based, this difference is not to be explained in terms of ambiguity or vagueness in the word?certain?, but rather in terms of disagreement between ordinary men and philosophers as to the importance of one of the criteria of the ordinary sense of?certain?. I argue that there is reason to think that (...) class='Hi'>certainty is some sort of absolute, and thus that no empirical statement is certain. And in any case, the problem of empirical certainty is not a pseudo?problem, as metaphilosophers like Wittgenstein and Wisdom have thought. (shrink)

After describing Wittgenstein's notion of ‘certainty’, in this article I provide four arguments to demonstrate that no certainty can be acquired at will. Specifically, I argue that, in order to assimilate a certainty, it is irrelevant whether the individual concerned has found a ground that seemingly justifies that certainty; has a given mental state; is willing to accept the certainty on the proposal of a persuader; or tries to act according to the certainty involved. (...) Lastly, I analyse how each of these arguments is reflected in the way children acquire certainties. (shrink)

The aim of the article is to formulate a proposal for the conceptual analysis of the notion of predictability of law, in order to make clear its theoretical and practical implications. To achieve this goal, I will explain the theoretical (what conceptual implications it has) and practical (what decisions it requires us to make) commitments that this conceptualization requires. Specifically, I analyze the commitments to the types of receivers of predictions and issuers of predictions; then I identify what kinds of (...) relationship can be assumed between the predictability of law and its effectiveness; next I indicate what the use of predictions as a means of assessing the degree of satisfaction of legal certainty commits us. Finally I indicate what commitments must be made in adopting a methodology for making predictions. (shrink)

The tension between the need for critique and its (often unperceived) limits through our given common sense, a tension Charles S. Peirce describes as critical common sense, hasn’t lost its actuality. Vague certainty is one root of this tension, which the paper unfolds by distinguishing two forms: while the first one grounds common sense as a form of life, the second one, self-certainty, represents the purpose of endeavors, and it serves, speaking with Pierre Bourdieu, as a form of (...) distinction (1). As part of an indifference towards power structures of exclusion, vague certainties contribute to what Judith Butlers describes as the violent derealization of others, which is being discussed in the light of the Black Lives Matter and Me Too movement. (Self-)certainty, as is being shown, is not (merely) an epistemological matter, but encompasses the fields of the political and aesthetic. Accordingly, as a crucial part of political critique and practices to counter (self-)certainties, a differentiation of doubting is required – the paper proposes four different kinds: authoritarian, anti-authoritarian, acknowledging and imaginative doubting. They help understand the political struggles of re-realizing formerly derealized positions within society (2). Particularly through imaginative doubting, some shortcomings within Peirce’s notion of the self (and, for that matter, within the pragmatist notion of doubting) are being overcome by showing how to link it to creative processes of abduction, which in turn have consequences for political matters by unsettling implicit consent, or, in the words of Jacques Rancière, the partition of the sensible (3). (shrink)

Certainty and Practical Reason is concerned with Kant's practical response to epistemological skepticism and radical doubt. ;It begins from Kant's remark that the concept of freedom is the keystone of the arch of reason, theoretical as well as practical, and sustains reason against skepticism; and from Kant's account of the practical motives of transcendental realism, the source of skepticism, in the First and Second Critiques. The Critiques suggest both that Kant's response to skepticism is practical, and that skepticism is (...) itself both practically motivated and associated with practical error. ;In the first chapter, it is argued that the Transcendental Analytic of the First Critique is not a final refutation of skepticism and radical doubt, and that Kant does not see it as such. The theoretical arguments of the Transcendental Analytic need to be completed with an appeal to practical reason if we are to ground Kant's starting assumption, the fact of experience. ;The second chapter considers epistemological skepticism as involving a practical error answered by the practical cure of the categorical imperative. ;The third chapter begins by considering Cartesian doubt as a practically motivated attempt to pose the problem of practical rationality, and Kant's response to this problem. It then discusses Kant's view that the transcendental realist demand for knowledge of the noumenal, which gives rise to skeptical doubt, is a pursuit of the unconditioned whose hidden meaning is practical; and explains how Kant responds to the doubt by responding to and interpreting transcendental realism as a practical project. ;The fourth chapter discusses the Critique of Judgment as a response to "enthusiasm" or the transcendental realist claim to knowledge of the unconditioned, and thereby to skepticism as well. (shrink)

The Certainty Trap introduced by Redstone reminds us that certainty/uncertainty are endemic to the human condition and merit sustained social science attention. This comment begins with seven preliminary considerations, such as whether the context is objective or subjective and the variety of words involved. Next we summarize some theoretical and empirical lines of attack. The theoretical approaches include three theories of varying type, all involving both certainty/uncertainty and happiness, signaling a link between certainty/uncertainty and happiness. The (...) empirical approaches include both testing theoretical predictions and assembling an archive of data on certainty/uncertainty, including numerical versions of response categories. We end with the possibility that a large and lifelong field of opportunities to assess certainty/uncertainty may build both cognitive and noncognitive skills, protecting against the Certainty Trap. (shrink)

Does scepticism threaten our common sense picture of the world? Does it really undermine our deep-rooted certainties? Answers to these questions are offered through a comparative study of the epistemological work of two key figures in the history of analytic philosophy, G. E. Moore and Ludwig Wittgenstein.

In this paper, we identify and explain three kinds of bedrock in moral thought. The term "bedrock," as introduced by Wittgenstein in §217 of the Philosophical Investigations, stands for the end of a chain of reasoning. We affirm that some chains of moral reasoning do indeed end with certainty. However, different kinds of certainties in morality work in different ways. In the course of systematizing the different types of certainties, we argue that present accounts of certainties in morality do (...) not reflect their diversity. Our analysis yields three types of moral certainty: QUASI-UNDOUBTABLE CERTAIN PROPOSITIONS, CERTAIN PROPOSITIONS, and TRANSCENDENTAL CERTAINTIES. We show that the first two types can, at least to some extent, be intelligibly doubted. Therefore, they do not possess the characteristics that would classify them as bedrock in the strictest sense. TRANSCENDENTAL CERTAINTIES cannot likewise be doubted because they are rules that enable moral thinking. Thus, deviating from them is unintelligible. We shall argue that all three types reflect ways in which moral language games come to an end, while only one, TRANSCENDENTAL CERTAINTIES, displays the characteristic of being solid bedrock. (shrink)

It is useful to identify the Certainty Trap, but conceptualization is not explanation. Sociologists concerned with the Trap should examine which social structures encourage or discourage it. Only when we understand what makes something more or less likely can we hope to ameliorate it. Based on existing theory, I suggest some relevant aspects of social structure.

This radical reading of Wittgenstein's third and last masterpiece, On Certainty, has major implications for philosophy. It elucidates Wittgenstein's ultimate thoughts on the nature of our basic beliefs and his demystification of scepticism. Our basic certainties are shown to be nonepistemic, nonpropositional attitudes that, as such, have no verbal occurrence but manifest themselves exclusively in our actions. This fundamental certainty is a belief-in, a primitive confidence or ur-trust whose practical nature bridges the hitherto unresolved categorial gap between belief (...) and action. (shrink)

ABSTRACTLloyd encourages us to look anew at philosophy and science by using a comparative methodology, comparing the familiar Western form of philosophy, for example, with the forms found in ancient China. Taking lessons from comparative biology, this paper attempts to show that such comparison can only take place when we understand what we are looking at in the familiar case. The question of the centrality of the drive for certainty is addressed. Why has certainty been so attractive and (...) what does it mean if philosophers and scientists cannot achieve certainty? (shrink)

The article deals with the problem of death and certainty as reflected in Daoism and Japanese Buddhist philosophy. In the Buddhist context, the Japanese Pure Land theory is discussed. The Buddhist theories are illustrated with the quotations of Daoist philosophers, Zhuang Zi and Lao Zi {Dan dejing), which illuminate the problem of certainty related to the theory of body and its transformations through the mental and physical techniques used in visualizations that were used on the Buddhist path to (...) truth and certainty. (shrink)

Newton began his Principia with three Axiomata sive Leges Motus. We offer an interpretation of Newton’s dual label and investigate two tensions inherent in his account of laws. The first arises from the juxtaposition of Newton’s confidence in the certainty of his laws and his commitment to their variability and contingency. The second arises because Newton ascribes fundamental status both to the laws and to the bodies and forces they govern. We argue the first is resolvable, but the second (...) is not. However, the second tension shows that Newton conceives laws as formal causes of bodies and forces. This neo-Aristotelian conception goes missing in Kantian accounts of laws, as well as accounts that stress laws’ grounding in powers and capacities. (shrink)

Written over the last 18 months of his life and inspired by his interest in G. E. Moore's defence of common sense, this much discussed volume collects Wittgenstein's reflections on knowledge and certainty, on what it is to know a proposition for sure.

What is the relation between legal certainty and correctness? This question poses one of the perpetual problems of the theory and practice of law—and for this reason: The answer turns on the main question in legal philosophy, the question of the concept and the nature of law. Thus, in an initial step, I will briefly look at the concept and the nature of law. In a second step, I will attempt to explain what the concept and the nature of (...) law, thus understood, imply for the relation between legal certainty and correctness. Here three issues will be considered: first, the Radbruch formula as an answer to the problem of extreme injustice; second, the special case thesis, which claims that legal argumentation is a special case of general practical argumentation; and, third, the problem of the judicial development of the law. (shrink)

Some philosopheis (e.g. Ayer, Reichenbach, Lewis) use a version of the argument from illusion to prove that empirical statements are never certain. But this argument, unwittingly, also calls into doubt the certainty of calculations in logic and mathematics. The argument seems to call into question the application of any rule on the grounds that one might at some future time find out that one had misapplied it. But the argument from illusion is only the illusion of an argument.

Most philosophers, including all materialists I know of, believe that I am a complex thing?a thing with parts?and that my mental life is (or is a result of) the interaction of these parts. These philosophers often believe that I am a body or a brain, and my mental life is (or is a product of) brain activity. In this paper, I develop and defend a novel argument against this view. The argument turns on certainty, that highest epistemic status that (...) a precious few of our beliefs enjoy. For example, on the basis of introspection, I am certain that I am not in fierce pain right now. But if I am a complex thing like a body or a brain, then introspection might be a causal series of events extended in time. And any such process could go awry. So, if introspection is such a process, then I could gain good evidence that the introspective process has gone awry and that I am, contrary to appearances, feeling fierce pain right now. Therefore, the view that I am a complex thing like a body or a brain forces open the possibility that I cannot be certain that I am not feeling fierce pain right now. Since that is clearly not an open possibility, it follows that I am not a complex thing. I conclude by responding to three objections. (shrink)

Wittgenstein’s On Certainty has been a source of inspiration for philosophers concerned with the notion of deep disagreement (see Fogelin in Informal Logic 25(1):3–11, 2005; Pritchard in Topoi 40:1117–1125, 2021. https://doi.org/10.1007/s11245-018-9612-y ). While Wittgenstein’s examples of certainties do not include moral certainties, some philosophers have argued that an analogy can be drawn between certainty regarding the empirical world and moral certainty (Goodman in Metaphilosophy 13:138–148,1982; Hermann in On moral certainty, justification, and practice: A Wittgensteinian perspective, Palgrave (...) Macmillan, Basingstoke, 2015; Pleasants in Inquiry 51(3):241–267, 2008. https://doi.org/10.1080/00201740802120673 ). Moral certainty manifests itself in our fundamental ways of feeling, thinking, and acting morally. It is closely related to an “agreement in form of life” (Wittgenstein in Philosophical investigations, Translated by G.E.M. Anscombe. Third ed., Basil Blackwell, Oxford, 1968, § 241.), which makes moral disagreements possible in the first place. In this paper, I aim to shed light on the phenomenon of moral deep disagreement by relating it not only to the notion of moral certainty but also to the concept of deep disruption as it is currently developed and discussed in the philosophy of technology. I argue that certainty, deep disagreement, and deep disruption are all located at the level of “bedrock practices” (Williams in Wittgenstein, mind and meaning, Routledge, Milton Park, 1999, p. 198), and that the fundamentality of their objects should be understood in terms of relationality and interconnectedness. Deep disagreements can occur through deep technology-induced disruption and can take the form of a disruption of deep conceptual agreement. Conceptual common ground can be re-established by continuous interaction and a collective process of moral articulation. Deep disruption and moral deep disagreement can lead to moral progress, for instance in the form of recognising and correcting an epistemic injustice. (shrink)

This paper argues that we should assign certainty a central place in epistemology. While epistemic certainty played an important role in the history of epistemology, recent epistemology has tended to dismiss certainty as an unattainable ideal, focusing its attention on knowledge instead. I argue that this is a mistake. Attending to certainty attributions in the wild suggests that much of our everyday knowledge qualifies, in appropriate contexts, as certain. After developing a semantics for certainty ascriptions, (...) I put certainty to explanatory work. Specifically, I argue that by taking certainty as our central epistemic notion, we can shed light on a variety of important topics, including evidence and evidential probability, epistemic modals, and the normative constraints on credence and assertion. (shrink)

This overview of the philosophy of certainty will distinguish two types of certainty, specify controversial theses about certainty from recent literature, and explain some of the arguments for and against those theses.

If we agree, along with Arnauld, Berkeley, Descartes, Hume, Leibniz, and others that our occurrent phenomenal states serve as sources of epistemic certainty for us, we need some explanation of this fact. Many contemporary writers, most notably Roderick Chisholm, maintain that there is something special about the phenomenal states themselves that allows our certain knowledge of them. I argue that Chisholm's view is both wrong and irreparable, and that the capacity of humans to know these states with certainty (...) has to do with the contingent cognitive capacities and abilities people have. (shrink)

In this paper, I survey the way Wittgenstein reacts to radical philosophical doubt in his On Certainty.He deems skeptical doubt in some important cases idle, pointless or otherwise negligible. I point out that several passages of On Certainty make it difficult to judge whether Wittgenstein intends to address a skeptic or a metaphysical idealist. Drawing attention to the anti-skeptical nature of Berkeley’s idealism, I go on to argue that the question is far from trivial: rather, it affects the (...) way we should evaluate Wittgenstein’s arguments in On Certainty in general. I finally attempt to explain why Wittgenstein remained ambiguous about the target of his arguments, and discuss the possibility of making room for the idealism/skepticism distinction in On Certainty’s framework. (shrink)

Recently there has been a growing literature on the concept of moral certainty. This concept, which is inspired by Wittgenstein’s reflections in On Certainty, is most prominently argued for by Nigel Pleasants. Pleasants contends that there is a meaningful parallel to be drawn between the epistemic certainties discussed by Wittgenstein and moral certainties. These moral certainties are unreflective, non-propositional, and show in the ways that we act. In addition, these certainties cannot be doubted by a reasonable moral agent. (...) In a recently published article, Fairhurst is critical of Pleasants’ account. Fairhurst argues that there are problems with Pleasants’ example of a moral certainty, 'it is wrong to kill innocent non-threatening people'. Fairhurst appeals to euthanasia as an example of when a reasonable person could meaningfully doubt that it is wrong to kill innocent, non-threatening people. If this is a certainty, then a doubt such as this should not be possible. In addition, he argues that Pleasants’ claim that moral certainties are natural is not well substantiated. In this article, I attempt to defend an account of moral certainty against Fairhurst’s criticisms. I divide his criticisms into two parts. His first set of criticisms deal with Pleasants’ example of a moral certainty. I argue that some of his criticisms are inconsistent while others can be addressed by making a small amendment to Pleasants’ account. His second criticism deals with Pleasants’ claim that moral certainties are natural. In order to address this criticism, I appeal to Machery’s Nomological Account of human nature and use it as a basis that allows us to consistently make the claim that there are natural moral certainties. (shrink)

The paper focuses on the role of relativistic ideas in Wittgenstein’s philosophy. In particular, it focuses on On Certainty (1969), where in (305), Wittgenstein explicitly invokes Einstein’s theory of relativity: “Here once more there is needed a step like the one taken in relativity theory.” The aim of the paper is to establish a connection between Wittgenstein and Einstein that is both theoretically and exegetically sound. In particular, the paper argues that Wittgenstein’s reaction to scepticism closely resembles Einstein’s reaction (...) to the ether. (shrink)

We ordinarily assume that we have reliable knowledge of our immediate surroundings, so much so that almost all the time we entrust our lives to the truth of what we take ourselves to know, without a moment’s thought. But if, as Karl Popper and others have maintained, all our knowledge is conjectural, then this habitual assumption that our common sense knowledge of our environment is secure and trustworthy would seem to be an illusion. Popper’s philosophy of science, in particular, fails (...) to do justice to the distinction we ordinarily draw between secure knowledge and mere conjecture. But Popper’s philosophy of science, in particular his attempted solution to the problem of induction, is defective. It fails to take into account that physics, in only accepting unified theories, even though endlessly empirically more successful disunified rivals are always available, makes the persistent metaphysical assumption that all disunified theories are false. Once this point is acknowledged, it becomes clear that a new conception of scientific method is required which sees science as making a hierarchy of metaphysical assumptions concerning the comprehensibility and knowability of the universe. This provides a framework of relatively unproblematic assumptions and associated methods of science within which much more problematic assumptions and associated methods can be critically assessed and improved. This hierarchical view seems at first to intensify the problem of distinguishing certainty from conjecture, in that it emphasizes that scientific knowledge, and even humble common sense knowledge, contain usually unacknowledged cosmological conjectures. But actually it explicates the basis we have for drawing the distinction between trustworthy knowledge and mere conjecture, and even goes some way towards providing a rationale for this distinction, in so far as one exists. (shrink)

Schubert squarely addresses the question of whether there is a single standard of certainty that can be applied to such disparate areas as logic, mathematics, politics, religion, familial/tribal commitments, and science. The result is a new “philosophy in a grand manner” and a powerful ethical proposal for our time.

Demands for absolute or near certainty are a common way for those with a political agenda to undermine science and to delay action. Through our combined experience in science, philosophy and cultural theory, we are acquainted with these attempts to undermine science. We want to help readers figure out how to evaluate their merits or lack thereof.