This paper introduces some of the major themes of An Unwritten Future: Realism and Uncertainty in World Politics, and provides a short illustration of how the analytical apparatus elaborated there can offer fruitful insights into understanding enduring puzzles in international relations. An Unwritten Future explores, illuminates and interrogates Classical Realism, an approach to the study of world politics that is contrasted with Structural Realism and with the ‘hyper-rationalist’ perspective associated with the ‘Rationalist Explanations for War’ school (...) of thought. It elucidates the fundamental flaws of those two highly influential paradigms, and explains why Classical Realism, with its emphasis on what Structural Realism and Hyper-rationalism forbid—content, purpose, history, and irreducible uncertainty—provides a more promising and productive point of departure for students of international relations. (shrink)

In their assessments of An Unwritten Future: Realism and Uncertainty in World Politics, two distinguished scholars of World Politics engage in a spirited contestation about the role of classical realism in International Relations (IR) theory. Richard Ned Lebow aspires to defend the paradigm from what he suggests are barbarians at the gate. In this response I offer rejoinders to his treatment of E. H. Carr and Robert Gilpin, and his characterization of the ways in which we each (...) engage Thucydides’ The Peloponnesian War as an inspirational text. Stephen Krasner raises a number of thoughtful and savvy constructive criticisms of An Unwritten Future, some of which ring true. Yet he and I continue to markedly disagree about the importance of analytical uncertainty for understanding IR, and also with regard to the role of history in explaining behavior in world politics. And in an otherwise sophisticated critique, Krasner ultimately reduces classical realism to a caricature. In my response I clarify why in fact it is his preferred approach, structural realism, which, on its own, is irretrievably indeterminate and leaves scholars needing much more that its minimalist disposition can possibly hope to provide. I conclude with a short elaboration of why classical realism offers a more productive way forward. (shrink)

Classical realism is enjoying a renaissance in the study of international relations. It is well known that the analytical and normative international-political thought of early 20th-century classical realists is based on assumptions about human nature. Yet current knowledge of these assumptions remains limited. This article therefore revisits and examines the nature and intellectual roots of the human nature assumptions of three truly consequential classical realists. The analysis shows — similar to the causa Hans J. Morgenthau — (...) that the human nature assumptions of George F. Kennan, Walter Lippmann and E. H. Carr are — to varying degrees — Freudian. Unless this hitherto neglected dimension is recognized, an understanding of their international-political thought and of the political philosophy of realism remains incomplete. Two conclusions are presented. First, current criticism of classical realism’s human nature assumptions is unjustified. Second, any (re-) engagement with classical realism must recognize its human nature baggage. Realist international-political theorizing is necessarily human nature-based international-political theorizing. (shrink)

The theses maintained in Professor Martin's work are of two quite different types: theses about the natures and interrelations of the various kinds of knowledge and theses about the true philosophy and the false ones. The true philosophy is classical realism, the philosophy of "the Aristotelian-Aquinas tradi- tion". What is the relation between these two kinds of theses, between Mr. Martin's theory of the order and integration of knowledge, on the one hand, and his classical realism, (...) on the other? Although Mr. Martin's view on this question is not entirely clear, it seems to be the following: "Moderate realism is the most adequate metaphysical position to account for the nature and kinds of knowledge"; but "this adequacy, in itself, is not sufficient for demonstrating the truth of realism. Rather it is one sign, among others, of its truth." We shall return to this question of the relation between these two kinds of theses after considering them separately. Since my own philosophical background and orientation tend to be similar to Mr. Martin's, the following discussion may present only an insider's view, though one more positively influenced by outsiders than is Mr. Martin's. (shrink)

Jonathan Kirshner misrepresents classical realism in fundamental ways. His wants to reclaim classical realism, but he never tells us what it is or engages other scholars who have developed the paradigm. He pleads for a more sophisticated realism but spends much of the book engaging neorealism and ‘hyperrationality.’ He foregrounds Thucydides but reads him superficially and indefensibly in terms of contemporary realist tropes. He asserts – incorrectly – that classical realism eschews abstract formulations (...) but then offers his own. I critique his formulation, reading of Thucydides, and offer an overview of classical realism. I argue that classical realism is an ethical project embedded in a tragic understanding of life. It foregrounds human miscalculations, misjudgments, and their causes, sees tight connections between domestic and foreign policy, and the values that motivate both; and regards great powers as likely to be their own worst enemies. (shrink)

Classical realist thought provides a diagnosis of the significance nuclear weapons that calls into question the very possibility of politics in the nuclear age. While sharing similarities with this...

Although David Mitrany’s international thought is not usually associated with the concept of the international anarchy, I argue that his analysis actually compares two forms of anarchical order. The first form is the order associated with the relations between states, while the second is his functional alternative to this order. The functional approach is anarchical in the sense that it remains an order without an orderer. In first analysing the dynamics and failings of the inter-state order, and then suggesting pragmatic (...) process-orientated solutions to those failings, I argue that Mitrany follows a similar approach to his classical realist contemporaries. (shrink)

In an enlightening dialogue with Descartes, Kant, Husserl and Gadamer, Professor Seifert argues that the original inspiration of phenomenology was nothing other than the primordial insight of philosophy itself, the foundation of philosophia perennis . His radical rethinking of the phenomenological method results in a universal, objectivist philosophy in direct continuity with Plato, Aristotle and Augustine. In order to validate the classical claim to know autonomous being, the author defends Husserl's methodological principle "Back to things themselves" from empiricist and (...) idealist critics, including the later Husserl, and replies to the arguments of Kant which attempt to discredit the knowability of things in themselves. Originally published in 1982, this book culminates in a phenomenological and critical unfolding of the Augustinian cogito , as giving access to immutable truth about necessary essences and the real existence of personal being. (shrink)

Seifert explains here the distinctiveness of the method of phenomenology and, above all, seeks to reclaim the method from the idealists and for classical realism. The main question of the book is: "In our knowledge, do we also discover besides the appearances and constituted aspects of things, 'things themselves,' i.e., essential structures and laws, and existents, which are in no way constituted by human consciousness?".

The article shows that three antirealistic theories of classical analysis and synthesis are logically possible: presentationistic, solipsistic and Kantian, but only the latter is actually being developed. Revealed its specific features and features shared with other, logically possible antirealistic theories. The correlation of the Kantian theory of analysis and synthesis of knowledge with his theory of analysis and synthesis of subjects of knowledge is analyzed. Gnoseological problems that forced Kant to assert that new knowledge is provided only by the (...) synthesis of knowledge, and analysis only clarifies the results of synthesis, are characterized. The Kantian solution to these problems is correlated with their realistic solution. The role that the Kantian "Copernican revolution in philosophy" plays in his interpretation of the analysis and synthesis of subjects of knowledge is investigated. The Kantian theory of analytical and synthetic judgments is considered. It is shown that the Kantian question "how are synthetic judgments a priori possible?" is essentially a question about the nature of theoretical knowledge, which was historically formed in ancient geometry precisely as the unity of analysis and synthesis. A qualitative difference is shown between classical and geometric (by origin) analysis and synthesis. Three historical stages of their formation are described. The assertion of I. Newton that the natural science experiment arose as a result of the extension of the method of geometric analysis and synthesis to the natural sciences is investigated. (shrink)

In this paper we discuss the representational realist stance as a pluralist ontic approach to inter-theoretic relationships. Our stance stresses the fact that physical theories require the necessary consideration of a conceptual level of discourse which determines and configures the specific field of phenomena discussed by each particular theory. We will criticize the orthodox line of research which has grounded the analysis about QM in two metaphysical presuppositions —accepted in the present as dogmas that all interpretations must follow. We will (...) also examine how the orthodox project of "bridging the gap" between the quantum and the classical domains has constrained the possibilities of research, producing only a limited set of interpretational problems which only focus in the justification of "classical reality" and exclude the possibility of analyzing the possibilities of non-classical conceptual representations of QM. The representational realist stance introduces two new problems, namely, the superposition problem and the contextuality problem, which consider explicitly the conceptual representation of orthodox QM beyond the mere reference to mathematical structures and measurement outcomes. In the final part of the paper, we revisit, from a representational realist perspective, the quantum to classical limit and the orthodox claim that this inter-theoretic relation can be explained through the principle of decoherence. (shrink)

PREFACE Towards the end of his important article 'What is Phenomenology?" Adolf Reinach writes: When we wish to break with all theories and constructions in ...

The standard conception of God is that of a necessary being. On a possible worlds semantics, this entails that God exists at every possible world. According to the modal realist account of David Lewis, possible worlds are understood to be real, concrete worlds—no different in kind from the actual world. Some have argued that Lewis’s view is incompatible with classical theism (e.g., Sheehy, 2006). More recently, Ross Cameron (2009) has defended the thesis that Lewisian modal realism and (...) class='Hi'>classical theism are in fact compatible. I argue that this is not the case. Modal realism, I argue, is equipped to accommodate necessary beings in only one of three ways: (1) By way of counterpart theory, or (2) by way of a special case of trans-world identity for causally inert necessary beings (e.g., pure sets), or else (3) causally potent ones which lack accidental intrinsic properties. However, each of these three options entails unacceptable consequences—(1) and (2) are incompatible with theism, and (3) is incompatible with modal realism. I conclude that (at least) one of these views is false. (shrink)

The article shows that all modern theories of analysis and synthesis, on one basis, are divided into classical and non-classical, and on the other, into realistic and anti-realistic. A realistic version of the classical theory, according to which analysis is a real or mental decomposition of the phenomena of the objective and subjective world into components, and synthesis is a real or mental combination of these components into a whole, is considered. The naive understanding of analysis, which (...) includes in its task the cognition of the components of the object under study, and those relations that form it from these components, has been criticized. It is shown that the cognition of such relations is a task of synthesis. The history of the study of the problem of mental synthesis from Plato to modern nominalism is considered. Mental analysis and synthesis are compared with practical ones. Two stages of the history of practical analysis and synthesis are investigated — pre-scientific and scientific. The theories of analysis and synthesis, formed at these stages, are compared. (shrink)

In Free Market Fairness, John Tomasi defends classical-liberal principles not because of real-world considerations but on ideal-theoretic grounds. However, what constitutes a sufficiently “ideal” ideal theory is debatable since, as Tomasi shows, regimes that range from laissez faire to heavily interventionist can all be classified as legitimate from the perspective of ideal theory. Conversely, if ideal theory can allow for realistic constraints, as Rawls does, then we should recognize that even under ideal-theoretic conditions, political actors face logistical, epistemic, and (...) motivational challenges that only intensify in the real world, where questions of feasibility become paramount. (shrink)

What is Chinese Realism and how to update its research program? Realism analyses the world as it is – not as it should be. Realists, then, propose dealing with actual, real-world problems using actual, real-world instruments, such as incentives, rewards, and punishments. Once a major power in classical Chinese philosophy, Realism, or Legalism, fell out of favor early on in Chinese history. Its ideas, however, remain alive and powerful. This edited volume shows that many of the (...) Legalist recipes for creating strength, security, and order can still be applied today. Whether in international relations or corporate ethics, whether in the organization of the public sector or in the role that bureaucrats and politicians play, Realism offers unique ways of aligning these inherently particularistic actions with the broader common good. (shrink)

I sketch an application of a semantically anti-realist understanding of the classical sequent calculus to the topic of mathematics. The result is a semantically anti-realist defence of a kind of mathematical realism. In the paper, I begin the development of the view and compare it to orthodox positions in the philosophy of mathematics.

This article elaborates local selective realism in view of the shifting from classical to quantum electrodynamics. After some introductory remarks, we critically address what we call global selective realism, hence setting forth the background for outlining local selective realism. When examining the transition from classical to quantum electrodynamics, we evaluate both continuities and discontinuities in observational features, mathematical structures, and ontological presuppositions. Our argument leads us to criticise the narrow understanding of limiting-case strategies, and to (...) reject the claim that we need a fully coherent theoretical framework to account for the transition from one theory to its successor in the case of electrodynamics. We close with a few remarks on the scope of local selective realism. (shrink)

While most discussions of political realism in the West draw their inspiration from thinkers such as Thucydides, Machiavelli, and Hobbes, they were far from the only political theorists developing such an approach. Rather, we see realist approaches to politics not only in a vast array of European thinkers throughout history, but also in in a diverse range of non-European traditions. From Kautilya’s 2nd c. BCE Sanskrit classic to the eponymously named Han Feizi from China, a variety of realist visions (...) were developed alongside arguments detailing structural problems in the more idealist political visions of their rivals. One such thinker, whose ideas have largely been lost to the contemporary world was the Chinese philosopher Shen Dao (c. 350-275 BCE). -/- One of the most philosophical intriguing arguments Shen Dao develops focuses on the sources of political resentment and the necessity of eliminating them as a prerequisite to a strong and stable society and state. This essay develops Shen Dao’s argument that resentment arises not merely when people’s desires are not fulfilled but rather when there was an expectation that they could have been fulfilled and work to demonstrate how he envisions eliminating sources of resentment in the political sphere. In doing so, it engages with much more prevalent Confucian views, demonstrating that Shen Dao presents a trenchant criticism of one of the very bases of Confucian political philosophy and, indeed any political theory that develops itself from moral foundations. -/- This paper closes with an analysis of how Shen Dao’s ideas may be brought into conversation with those of political realists more familiar to a Western audience, with a goal of “pursuing the ideal of working with similarities in differences and differences in similarities.” In particular it raises the question for students of why the worries of resentment were not foregrounded in the West in the way that they were by Chinese realists. This provides students with entry into examining the ways in which different cultures approach very similar topics and allows us to more deeply reflect not only on why certain things were emphasized in a particular tradition but why others were de-emphasized or seemingly ignored. (shrink)

Since the outbreak of the war in the Ukraine, realism has made a comeback in public discourses but it is not clear what realism actually means as it seems to stand for everything: from supporting the Ukraine against Russian aggression to the war is the West’s fault. This is the result of decades of not distinguishing between neorealism and classical realism and implicitly acknowledging neorealist storytelling of having systematized classical realist thought. The present paper is (...) a further intervention to carefully distinguish between both theoretical perspectives to uncover what they can add to current world political problems. It finishes by asking if neorealist scholars like John Mearsheimer have a point that it is the West’s fault and a diplomatic solution needs to be found. They often refer to Hans Morgenthau not least because he was one of the most outspoken critics of the Vietnam War. (shrink)

Famously, Michael Dummett argues that considerations concerning the role of language in communication lead to the rejection of classical logic in favor of intuitionistic logic. Potentially, this results in massive revisions of established mathematics. Recently, Neil Tennant (“The law of excluded middle is synthetic a priori, if valid”, Philosophical Topics 24 (1996), 205-229) suggested that a Dummettian anti-realist can accept the law of excluded middle as a synthetic, a priori principle grounded on a metaphysical principle of determinacy. This article (...) shows that the for the anti-realist, the law of excluded middle entails that humans have wildly implausible abilities. The proposed synthesis between anti-realism and classical mathematics thus fails. (shrink)

The dissertation falls into two sections. Part I deals with classical pragmatist arguments against the correspondence theory of truth; Part II , with neo-pragmatist arguments against the possibility of a substantive theory of knowledge. The goal of Part I is to reconstruct and evaluate the main anti-correspondence arguments employed by the classical pragmatists and contemporary neo-pragmatists . Here we offer detailed critical and historical discussions of two arguments in particular: the comparison objection, which claims that the idea that (...) truth is a matter of correspondence with the facts leads directly to skepticism; and the constructivist or anti-realist objection, according to which the correspondence theory is tenable only if realism is defensible, and thus cannot survive the latter position's fall from grace. After considering these objections, we address what James and Dewey had to say about the nature of the correspondence relation itself, and urge that their position has been badly misunderstood by foes and friends alike. Part II deals with the misgivings neo-pragmatists have about the very idea of a philosophical "theory of knowledge." Within analytic philosophy, the most familiar and aggressive expression of this anti-epistemology attitude is Richard Rorty's Philosophy and the Mirror of Nature. However, Rorty is far from alone in declaring epistemology moribund: philosophers in both the Anglo-American and Continental traditions have been busy composing obituaries for some time now. Our primary aim in Part II is to refute two main arguments central to the neo-pragmatist anti-epistemology case: the arguments against "foundations", a heterogeneous family of four objections to the idea of epistemology as 'foundational'; and the anti-representationalist argument, according to which skepticism and epistemology itself are said to rest on an untenable representationalist conception of thought or language. (shrink)

The usefulness of ‘realism’ in explaining Russia’s decision to invade Ukraine has become a keenly contested debate not only in International Relations but in wider public intellectual discourse since the onset of the war in February 2022. At the centre of this debate is the punditry of John J. Mearsheimer, a prominent offensive realist who is a Professor of International Relations at the University of Chicago. This article argues that although Mearsheimer is indeed a realist, his offensive realism (...) is but one of many different realist theories that can forward an explanation of the Ukraine War. Beyond the apparent hegemony of structural realism (the branch of realism to which Mearsheimer’s offensive realism belongs), it is argued that classical and neoclassical realist frameworks can provide more nuanced and, ultimately, convincing arguments as to why Russian President Vladimir Putin decided to invade Ukraine. This is because both classical and neoclassical realism can incorporate insights from non-realist studies—such as the concepts of civilization and ontological security—and combine them into an overarching power politics framework. Although neither classical nor neoclassical realism is flawless in their explanations, they demonstrate that realism does not just have to be about international power structures but can offer multivariate accounts of why a state, like Russia, decided to act, such as invading Ukraine. (shrink)

Excerpt from Leibniz Erkenntnistheoretischer Realist: Grundlinien Seiner Erkenntnislehre Jansen, Bernhard, Gottfried Wilhelm von Leibniz. Zum 200. Gedenktag seines Todes (14. Nov. Stimmen der Zeit, 92. Bd (1916) S. 160 - 177 Freiburg i. Dr. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in (...) the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. (shrink)

In this paper, by suggesting a formal representation of science based on recent advances in logic-based Artificial Intelligence (AI), we show how three serious concerns around the realisation of traditional scientific realism (the theory/observation distinction, over-determination of theories by data, and theory revision) can be overcome such that traditional realism is given a new guise as ‘naturalised’. We contend that such issues can be dealt with (in the context of scientific realism) by developing a formal representation of (...) science based on the application of the following tools from Knowledge Representation: the family of Description Logics, an enrichment of classical logics via defeasible statements, and an application of the preferential interpretation of the approach to Belief Revision. (shrink)

This paper aims to pay tribute to Figal’s comprehensive and innovative analysis of the artwork and beauty, while challenging both his realist position on the immediacy of meaning and his monist stance that reduces sublimity to beauty. To enquire into the origin of aesthetic feelings and sense, and thus, to break the hermeneutic circle, we first trace the origin of this reduction to the reception of Burke’s concept of the sublime by Mendelssohn and Kant. We then recur to Husserl and (...) Dufrenne to trace the origin of the sense of the feeling of sublimity in the realm of affectivity or sensuousness. This genesis takes place in passive experience, where we identify an excess of sensuous sense over categorial meaning that is constitutive of the affective sense that our bodily sensations give to hyletic material. It is argued that this sensuous excess evokes a sublime experience in the phenomenological sense, involving an affective and disruptive bodily experience and an endless process of sense formation. Affective or sensuous sense is thus an event that irreversibly affects the bodily surface. To elucidate this phenomenon, we draw on the theoretical framework of Breton and Bataille, positing it as a form-transgressive ‘convulsive’ sublime, which we then illustrate in the architectural works of Tschumi and Eisenman. In short, we have retrieved the origin of aesthetic experience and redefined the feeling of the sublime as a phenomenological ‘convulsive’ sublimity. (shrink)

While most discussions of political realism in the West draw their inspiration from thinkers such as Thucydides, Machiavelli, and Hobbes, they were far from the only political theorists developing such an approach. Rather, we see realist approaches to politics not only in a vast array of European thinkers throughout history, but also in a diverse range of non-European traditions. One such thinker, whose ideas have largely been lost to the contemporary world, was the Chinese philosopher Shen Dao, who focuses (...) on the sources of political resentment and the necessity of eliminating them as a prerequisite to a strong and stable society and state. This essay develops Shen Dao’s argument that resentment arises not merely when people’s desires are not fulfilled, but rather when there was an expectation that they could have been fulfilled and works to demonstrate how he envisions eliminating sources of resentment in the political sphere. In doing so, this essay engages with much more prevalent Confucian views, demonstrating that Shen Dao presents a trenchant criticism of one of the very bases of Confucian political philosophy and, indeed, any political theory that develops itself from moral foundations. (shrink)

Following the proposal of a new kind of selective structural realism that uses as a basis the distinction between framework and interaction theories, this work discusses relevant applications in fundamental physics. An ontology for the different entities and properties of well-known theories is thus consistently built. The case of classical field theories—including general relativity as a classical theory of gravitation—is examined in detail, as well as the implications of the classification scheme for issues of realism in (...) quantum mechanics. These applications also shed light on the different range of applicability of the ontic and epistemic versions of structural realism. (shrink)

The concept of kaivalya (literally, 'aloneness') is of crucial importance to the systems of classical Indian philosophy known as Sākhya and Yoga. Indeed, kaivalya is the supreme soteriological goal to which these systems are directed. Various statements concerning this final goal appear in the classical texts - namely, the Sākhyakārikā and Yogastra - and yet there is no consensus within modern scholarship about how the concept is to be interpreted. More specifically, there appears to be a great deal (...) of confusion over the implications of kaivalya for the existence of the empirical world. In this article I discuss the principal difficulties encountered by existing interpretations of kaivalya, and propose that these difficulties result from an unwarranted assumption that Sākhya and Yoga take a realist view with regard to the empirical world. I further propose that these difficulties can, in large part, be overcome when the assumption of realism is set aside. (shrink)

Here is one argument against realism. (1) Realists are committed to the classical rules for negation. But (2) legitimate rules of inference must conserve evidence. And (3) the classical rules for negation do not conserve evidence. So (4) realism is wrong. Most realists reject 2. But it has recently been argued that if we allow denied sentences as premisses and conclusions in inferences we will be able to reject 3. And this new argument against 3 generates (...) a new response to the antirealist argument: keep 1 and 2, avoiding 4 by rejecting 3. My aim in this paper is to see how much work in the fight against anti-realism this new response can really do. I argue that there is a powerful objection to the response: 2 is in tension with the claim that denied sentences can be premisses and conclusions in inferences. But I show that, even given this objection, the new response has an important role to play. (shrink)

Many of the ten practices to abolish war of just peacemaking theory can be appropriated by classical realist thinkers to illumine possibilities of more peace for the post-cold war situation. The optimism of just peacemaking theory about abolishing war, however, does not need to be appropriated. Realist participation in the just peacemaking project can proceed but only with reservations about what seems to be a mixture of optimism and Kantian idealism about the future peacefulness of a capitalist world, and (...) the illusion that war will disappear from the world. Realism, grounded more in the prophets than the just peacemaking project and more in the prophets' moral critique than in Thucydides' cynicism, provides a stronger foundation for policy advice than the Sermon on the Mount which did not focus on international relations. The striking lack of attention by Jesus to questions of the management of the Roman Empire and the ethics of war and peace permits Christians to consult books of the Bible where international relations and foreign policy are prominent for moral wisdom on the subject. (shrink)

Now acknowledged as a classic in the philosophy of science, A Realist Theory of Science is one of the very few books to transform not only our understanding of science, but that of the nature of the world it studies. The book has inspired the multi-disciplinary and international movement of thought known as critical realism. Re-issued with a new introduction.

Excerpt from The New Realism: Coöperative Studies in Philosophy On July 21, 1910, we published a brief article entitled 'The Program and First Platform of Six Realists,' in which we indicated the direction philosophical inquiry ought to take. We there asserted that advance would be facilitated by cooperative investigations; and the drafting of the platform was a first attempt to confirm this belief. The present volume continues, on a larger scale, the work there inaugurated; and we hope it will (...) be followed by other collections of studies. The introductory essay voices our common opinions. The other essays do so only in part. It has seemed best to publish them without laboring for complete unanimity, inasmuch as their agreements quite overshadow their differences. They have been written after prolonged conferences. A few important debatable topics are briefly discussed by dissenting members in the Appendix. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. (shrink)

This book, originally published in 1948 by Harper and Row, provides the student and general reader with a sympathetic introduction to the basic concepts and principles of classical, realistic philosophy. Topics include: the perfection of human nature; irresponsibility and its causes; intellectual virtue and moral virtue; the rational guidance of action and the happy life; social ethics; and the philosophy of nature among others.

A source of much difficulty and confusion in the interpretation of quantum mechanics is a naive realism about operators. By this we refer to various ways of taking too seriously the notion of operator-as-observable, and in particular to the all too casual talk about measuring operators that occurs when the subject is quantum mechanics. Without a specification of what should be meant by measuring a quantum observable, such an expression can have no clear meaning. A definite specification is provided (...) by Bohmian mechanics, a theory that emerges from Schrödinger's equation for a system of particles when we merely insist that particles means particles. Bohmian mechanics clarifies the status and the role of operators as observables in quantum mechanics by providing the operational details absent from standard quantum mechanics. It thereby allows us to readily dismiss all the radical claims traditionally enveloping the transition from the classical to the quantum realm — for example, that we must abandon classical logic or classical probability. The moral is rather simple: Beware naive realism, especially about operators! (shrink)

The standard interpretation of quantum physics (QP) and some recent generalizations of this theory rest on the adoption of a rerificationist theory of truth and meaning, while most proposals for modifying and interpreting QP in a “realistic” way attribute an ontological status to theoretical physical entities (ontological realism). Both terms of this dichotomy are criticizable, and many quantum paradoxes can be attributed to it. We discuss a new viewpoint in this paper (semantic realism, or briefly SR), which applies (...) both to classical physics (CP) and to QP. and is characterized by the attempt of giving up verificationism without adopting ontological realism. As a first step, we construct a formalized observative language L endowed with a correspondence truth theory. Then, we state a set of axioms by means of L which hold both in CP and in QP. and construct a further language Lv which can express bothtestable andtheoretical properties of a given physical system. The concepts ofmeaning andtestability do not collapse in L and Le hence we can distinguish between semantic and pragmatic compatibility of physical properties and define the concepts of testability and conjoint testability of statements of L and Le. In this context a new metatheoretical principle (MGP) is stated, which limits the validity of empirical physical laws. By applying SR (in particular. MGP) to QP, one can interpret quantum logic as a theory of testability in QP, show that QP is semantically incomplete, and invalidate the widespread claim that contextuality is unavoidable in QP. Furthermore. SR introduces some changes in the conventional interpretation of ideal measurements and Heisenberg’s uncertainty principle. (shrink)

Non-relativistic quantum mechanics is incompatible with our everyday or ‘classical’ intuitions about realism, not only at the microscopic level but also at the macroscopic level. The latter point is highlighted by the ‘cat paradox’ presented by Schrödinger. Since our observations are always made at the macroscopic level — even when applying the formalism to the microscopic level — the failure of classical realism at the macroscopic level is actually more fundamental and crucial.