The essays in this volume represent an approach to human knowledge that has had a profound influence on many recent thinkers. Popper breaks with a traditional commonsense theory of knowledge that can be traced back to Aristotle. A realist and fallibilist, he argues closely and in simple language that scientific knowledge, once stated in human language, is no longer part of ourselves but a separate entity that grows through critical selection.

The essays in this volume represent an approach to human knowledge that has had a profound influence on many recent thinkers. Popper breaks with a traditional commonsense theory of knowledge that can be traced back to Aristotle. A realist and fallibilist, he argues closely and in simple language that scientific knowledge, once stated in human language, is no longer part of ourselves but a separate entity that grows through critical selection.

While discussing his notion of objective knowledge Popper introduces the idea of dispensability of knowing subjects, the autonomy of knowledge and the argumentative function of language. The main claim of our paper is that, on our view, objective knowledge produced by argumentative interaction is not achieved by dispensing knowing subjects but by differentiating between the play and the strategic levels of argumentation, where a distinction should be drawn between a particular concrete knowing subject engaged in (...) that interaction, say Karl, and an arbitrary one. Moreover, the theory of meaning deployed at the level of plays, the so-called local meaning, provides already some kind of objective knowledge, since it is player-independent and it does not reduce to the purely logical one of the strategy level. In fact, despite our criticism we think that Popper's discussion of the notion objective knowledge still deserves to be reflected on, particularly so in view of new results concerning the formalization of Brouwer’s Creating Subject and the dialogical interpretation of the notion of epistemic assumption. (shrink)

Karl Popper’s Objective Knowledge stands at the threshold of his last major philosophical phase, the period from his retirement from the London School of Economics in 1969 until his death in 1994. The two great books that he wrote before he came to London, Logik der Forschung (1934) and The Open Society and Its Enemies (1945), contain much more than the innovations in the theory of scientific method and the theory of democracy for which they are famous. Logik (...) der Forschung, translated into English as The Logic of Scientific Discovery (1959), is by no means just a tract, even a revolutionary one, on the methods of science, since about one third of the text is devoted to searchingly original treatments of the frequency theory of probability and of the interpretation of quantum mechanics, whilst the unpublished manuscript on which the book was based, Die beiden Grundprobleme der Erkenntnistheorie (1979), at whose content it often hints, presents a wealth of significant material on the psychology of human learning and its biological context. Popper had, after all, been a student of Karl B¨ uhler, and had absorbed the theories of problem solving developed within the W¨ urzburg School (Popper 1974a, § 15). The Open Society and Its Enemies, for its part, is not so much a book defending democratic liberalism as a defence of democratic liberalism nestling within a book that discusses every other topic under the sun. It offers profound and provocative studies of the thought of Plato and Marx (see Hacohen 2000, Chapter 9, for a critical appreciation), an abundance of scholarly, if often controversial, historical interpretations of the work of Heraclitus, Aristotle, Hegel, J. S. Mill, Wittgenstein, Mannheim, and others, the elements of a new theory of rationality, and many elucidations of the workings of science that go beyond what is explicit in Logik der Forschung. One insight worth mentioning, since it is little known, is the clear recognition in section II of Chapter 11 that the progress of science is typically revolutionary, not cumulative; a commonplace today perhaps, but one.... (shrink)

Kant's purpose in the Critique of Pure Reason was to describe the nature and set the boundaries of human knowledge. At the heart of this ambitious enterprise is his doctrine of apperceptive self-identity. He insists that in order for us to know anything, there must be a unitary self capable of being aware of its own identity over time. Unfortunately, Kant's descriptions of this unitary 'I think' are extremely obscure, and his accounts of how it functions in the first (...) Critique's overall theory of knowledge are extremely problematical. ;I believe that much of the diversity of opinion about Kant's theory of self-identity has arisen owing to a lack of consensus about what really constitutes an adequate account of self-identity in the first Critique. I contend that an adequate account must satisfy four basic requirements. First, the theory must be compatible with his solutions to certain philosophical problems that emerge in the analysis of ordinary human cognition. Second, the theory must be consistent with the principles underlying his general account of human knowledge. Third, the theory must explain the cognitive relation between the momentary phenomenal self and the transtemporal, a priori unity of apperception. And fourth, it must explain the ontological status of this unitary 'I think'. ;I contend that the key to Kant's theory of apperceptive self-identity is found in his notion of synthesis. I look closely at what synthesis means for Kant, what he does with it in his account of human knowledge, and how his detailed account of objective synthesis may be used to shed light upon his more obscure accounts of the unitary synthesizing agent. I suggest that Kant's theory of apperceptive self-identity may be understood as a more generalized version of his theory of schematism. Both involve the synthetic unification of something pure and actively formal with some empirical and passively given content; and both are intimately connected with the nature of time. I show how these two facts may be used to elucidate the nature of the apperceptive subject, and how Kant's theory is able to satisfy the four requirements. (shrink)

The plural for knowledge, “knowledges” fell out of use in English philosophical discourse at the end of the Seventeenth Century. This paper reflects on the potential significance of this in the development of theoretical approaches to epistemology from the writings of John Locke to Karl Popper and the present day.

The paper considers the nature of knowledge in communicative action. It is emphasized that knowledge is not a hypostatized sphere. Objective meaning is an element of the discourse space, which may be defined as an interaction between speech acts, extralinguistic reality and texts. We intend to show that discourse is a purview of social schemes and standards, and its impact on communicative community is connected with the fact that the speech act is a perlocutionary effect.

In classical physics, probabilistic or statistical knowledge has been always related to ignorance or inaccurate subjective knowledge about an actual state of affairs. This idea has been extended to quantum mechanics through a completely incoherent interpretation of the Fermi-Dirac and Bose-Einstein statistics in terms of "strange" quantum particles. This interpretation, naturalized through a widespread "way of speaking" in the physics community, contradicts Born's physical account of Ψ as a "probability wave" which provides statistical information about outcomes that, in (...) fact, cannot be interpreted in terms of 'ignorance about an actual state of affairs'. In the present paper we discuss how the metaphysics of actuality has played an essential role in limiting the possibilities of understating things differently. We propose instead a metaphysical scheme in terms of powers with definite potentia which allows us to consider quantum probability in a new light, namely, as providing objective knowledge about a potential state of affairs. (shrink)

Philosophy of science is still, in the minds of many, identified with positivism. This is understandable since twentieth century philosophy of science originates with the work of the Vienna Circle. Positivism is most famous for the verification theory of meaning, the doctrine that the meaning of any proposition is the method by which it is verified, and that any nonanalytic locution which cannot be proven or disproven by some empirical test has no cognitive significance. Positivism is an attempt to construct (...) a “scientific philosophy” in the worst sense: it is maintained that (with the exception of propositions which are analytic and thus vacuous) only those propositions which occur in the sciences are meaningful, all other discourse having at best some emotive value, but no cognitive content, and all of this is maintained within the confines of an exceedingly narrow notion of scientific knowledge. This notion is so narrow that its advocates found themselves in danger of having to relegate most of physics to the realm of nonsense since physics contains many statements which are strictly universal and thus cannot be conclusively verified. (shrink)

In this book the author argues that knowledge is the outcome of an activity of judging, which is constrained by reasons (reflexive).

McDowell and Putnam are right to insist that objective knowledge is possible only because we are open to the world in perception, but neither of them offers an adequate account of the relationship between perception and perceptual judgments (which are at the core of our most fundamental knowledge of the world). This paper, intended as a contribution to the development of a sophisticated commonsense realism, proposes an account in terms of which perceptions acquire the status of perceptual (...) judgments to the extent that they are imbedded in and engaged with the high-level patterns of consciousness and reasoning characteristic of judgments. This in turn explains how the contents of perceptual judgments which are to be understood as refinements of contents of the relevant perceptions apply to a world that is largely independent of the perceiver and knower. (shrink)

Do humans start life with the capacity to detect and mentally represent the objects around them? Or is our object knowledge instead derived only as the result of prolonged experience with the external world? Are we simply able to perceive objects by watching their actions in the world, or do we have to act on objects ourselves in order to learn about their behavior? Finally, do we come to know all aspects of objects in the same way, or are (...) some aspects of our object understanding more epistemologically privileged than others? -/- "The Origins of Object Knowledge" presents the most up-to-date survey of the research into how the developing human mind understands the world of objects and their properties. It presents some of the best findings from leading research groups in the field of object representation approached from the perspective of developmental and comparative psychology. Topics covered in the book all address some aspect of what objects are from a psychological perspective; how humans and animals conceive what they are made of; what properties they possess; how we count them and how we categorize them; even how the difference between animate and inanimate objects leads to different expectations. The chapters also cover the variety of methodologies and techniques that must be used to study infants, young children, and non-human primates and the value of combining approaches to discovering what each group knows. -/- Bringing together leading researchers, communicating the most contemporary and exciting findings within the field of object representation, this volume will be an important work in the cognitive sciences, and of interest to those across the fields of developmental and comparative psychology. (shrink)

McDowell and Putnam are right to insist that objective knowledge is possible only because we are open to the world in perception, but neither of them offers an adequate account of the relationship between perception and perceptual judgments (which are at the core of our most fundamental knowledge of the world). This paper, intended as a contribution to the development of a sophisticated commonsense realism, proposes an account in terms of which perceptions acquire the status of perceptual (...) judgments to the extent that they are imbedded in and engaged with the high-level patterns of consciousness and reasoning characteristic of judgments. This in turn explains how the contents of perceptual judgments which are to be understood as refinements of contents of the relevant perceptions apply to a world that is largely independent of the perceiver and knower. (shrink)

Anthropologists, through participant observation, play a large role in creating the very locus of their research: socio-cultural context. Challenges to the social-scientific ‘objectivity’ of this process draw strength from historical precedent, and serve a vital role in the larger anthropological project of confronting, as both critic and product of Western thought, its inherent tensions. In this paper, I focus on two types of epistemological bias that construct and reinforce the validity of objective knowledge: objectivism and literalism. An analysis (...) of ethnographic treatments of the philosophical concerns of metaphor theory and phenomenology of the senses illustrates both the difficulty and utility of taking on the epistemological underpinnings of social science. (shrink)

This book contains the following essays: Conjectural Knowledge: My Solution of the Problem of Induction; Two Faces of Common Sense: An Argument for Commonsense Realism and Against the Commonsense Theory of Knowledge; Epistemology Without a Knowing Subject; On the Theory of the Objective Mind; The Aim of Science; Of Clouds and Clocks; Evolution and the Tree of Knowledge; A Realist View of Logic, Physics, and History; Philosophical Comments on Tarski’s Theory of Truth; The Bucket and the (...) Searchlight: Two Theories of Knowledge. There is a considerable overlap of material and recurrent themes. No attempt has been made to edit the material into a coherent whole. (shrink)

This problem was not the subject of any single book or article of Lenin's. However, in his writings , Lenin often had to deal with this problem and to elucidate significant aspects of it. We believe it necessary, to the degree that is possible within the confines of an article, to examine Lenin's major postulates with respect to this problem, bearing in mind not only the constant need to study this great heritage but also the fact that Lenin's postulates on (...) cognition and evaluation are of current importance in connection with present discussions on questions closely related to this. (shrink)

I explain why, from the perspective of knowledge-centric anti-luck epistemology, objective act consequentialist theories of ethics imply skepticism about the moral status of our prospective actions and also tend to be self-defeating, undermining the justification of consequentialist theories themselves. For according to knowledge-centric anti-luck epistemology there are modal anti-luck demands on both knowledge and justification, and it turns out that our beliefs about the moral status of our prospective actions are almost never able to satisfy these (...) demands if objective act consequentialism is true. This kind of applied moral skepticism introduces problematic limits on our ability to use objective act consequentialism’s explanatory power as evidence for its truth. This is, in part, a product of higher-order defeat as I explain in the final section. There is, however, a silver lining for objective act consequentialists. For there is at least one type of objective act consequentialism, prior existence consequentialism, that is poised to avoid at least some of the epistemic problems discussed in this paper. (shrink)

: For philosophers of science interested in elucidating the social character of science, an important question concerns the manner in which and degree to which the objectivity of scientific knowledge is socially constituted. We address this broad question by focusing specifically on philosophical theories of evidence. To get at the social character of evidence, we take an interdisciplinary approach informed by categories from argumentation studies. We then test these categories by exploring their applicability to a case study from high-energy (...) physics. Our central claim is that normative philosophy of science must move beyond abstract theories of justification, confirmation, or evidence conceived impersonally and incorporate a theoretical perspective that includes dialogical elements, either as adjuncts to impersonal theories of evidence or as intrinsic to the cogency of scientific argumentation. (shrink)

Two kinds of epistemological sceptical paradox are reviewed and a shared assumption, that warrant to accept a proposition has to be the same thing as having evidence for its truth, is noted. 'Entitlement', as used here, denotes a kind of rational warrant that counterexemplifies that identification. The paper pursues the thought that there are various kinds of entitlement and explores the possibility that the sceptical paradoxes might receive a uniform solution if entitlement can be made to reach sufficiently far. Three (...) kinds of entitlement are characterized and given prima facie support, and a fourth is canvassed. Certain foreseeable limitations of the suggested antisceptical strategy are noted. The discussion is grounded, overall, in a conception of the sceptical paradoxes not as directly challenging our having any warrant for large classes of our beliefs but as crises of intellectual conscience for one who wants to claim that we do. (shrink)

Gaston Bachelard is one of the indespensable figures in the history of 20th-century ideas. The broad scope of his work has had a lasting impact in several fields - notable philosophy, architecture and literature.

In the classic Miners case, an agent subjectively ought to do what they know is objectively wrong. This case shows that the subjective and objective ‘oughts’ are somewhat independent. But there remains a powerful intuition that the guidance of objective ‘oughts’ is more authoritative—so long as we know what they tell us. We argue that this intuition must be given up in light of a monotonicity principle, which undercuts the rationale for saying that objective ‘oughts’ are an (...) authoritative guide for agents and advisors. (shrink)

Laura Specker Sullivan (2022) makes a fairly compelling case for the value of the perspectives of Buddhist practitioners in neuroethics. In this study, Tibetan Buddhist monks have been asked, among other things, whether consciousness, in brain-injured patients in a minimally conscious state, entails a duty to preserve life. In our view, some of the participants’ responses could be used to inform the bioethical debate on death determination.

The fruits of knowledge—such as books, data, and ideas—tend to generate far more attention than the ways in which knowledge is produced and acquired. Correcting this imbalance, Making Knowledge in Early Modern Europe brings together a wide-ranging yet tightly integrated series of essays that explore how knowledge was obtained and demonstrated in Europe during an intellectually explosive four centuries, when standard methods of inquiry took shape across several fields of intellectual pursuit. Composed by scholars in disciplines (...) ranging from the history of science to art history to religious studies, the pieces collected here look at the production and consumption of knowledge as a social process within many different communities. They focus, in particular, on how the methods employed by scientists and intellectuals came to interact with the practices of craftspeople and practitioners to create new ways of knowing. Examining the role of texts, reading habits, painting methods, and countless other forms of knowledge making, this volume brilliantly illuminates the myriad ways these processes affected and were affected by the period’s monumental shifts in culture and learning. (shrink)

An anti-dispositionalist interpretation of grammatical knowledge would maintain that such knowledge exists whether or not it can be behaviourally manifested; a dispositionalist interpretation, on the other hand, would identify that knowledge with the in principle possibility of certain behavioural manifestations. The purpose of this paper is to present a preliminary case for the dispositionalist interpretation by accomplishing two complementary tasks: first, rejecting a prominent argument against the dispositionalist interpretation; second, advancing an original argument against the anti-dispositionalist interpretation. (...) Both tasks involve rebuttals of certain key theses associated with Chomskyan grammatical metatheory, and therefore, provide new opportunities for assessing its viability. -/- . (shrink)