American philosophical realism developed in two forms: “new” and “critical” realism. While the new realists sought to ‘emancipate’ ontology from epistemology and defended a direct theory of perception, the critical realists promoted a representationalist account of perception and thus argued for an epistemological dualism. Bertrand Russell’s early philosophical writings figured prominently in both of these American realist camps. However, while the new realists quite enthusiastically embraced the Russellian analytic style of reasoning (and Russell himself appreciated the American new realists as (...) anti-idealist allies), the critical realists were significantly more reserved toward Russell’s point of view. In the present paper, I identify the reasons for this difference in reception. In particular, I will show that the critical realists’ reservations pertained primarily to a more traditionalist—‘continental’—account of philosophy, whereas the neo-realists proved instrumental in setting the stage for later full-blown analytic philosophy in the United States. (shrink)

In der Studie geht Matthias Neuber der Frage nach, in welchem Verhältnis das Konzept des Realismus und der logische Empirismus des Wiener Kreises, eine der dominanten Strömungen der deutschsprachigen theoretischen Philosophie des frühen 20. Jahrhunderts, zueinander stehen. Diese Fragestellung ist in der philosophiehistorischen Forschung bislang nur am Rande behandelt worden. Das ist umso erstaunlicher, als die neuere wissenschaftsphilosophische Realismusdebatte gerade durch den logischen Empirismus maßgeblich mitbestimmt worden ist. Der Autor geht aber noch einen Schritt weiter: Er begründet in dem Band (...) die These, dass es innerhalb des logischen Empirismus selbst Strömungen gab, die mit dem wissenschaftlichen Realismus kompatibel sind. Damit bezieht er eine Gegenposition zum Mainstream in der Deutung der wissenschaftsphilosophischen Realismusdebatte des 20. Jahrhunderts, denn der versteht den wissenschaftlichen Realismus als Gegenprogramm zum logischen Empirismus. Neuber liefert mit seiner philosophiehistorischen Studie nicht weniger als eine Neubewertung des Verhältnisses von Realismus und logischem Empirismus. Ein Werk, das sich insbesondere an Wissenschaftler, aber auch an fortgeschrittene Studierende auf dem Gebiet der Geschichte der Wissenschaftsphilosophie richtet. (shrink)

American critical realism emerged in two forms: an ‘essentialist’ version defended, with some significant divergences, by George Santayana and C. A. Strong, and an ‘empirical’ version primarily defended by Roy Wood Sellars. Both forms of American critical realism aimed at an epistemologically convincing ‘representationalist’ account of perception. However, they were divided over issues of ontology. While Santayana and Strong invoked the notion of essence in order to ontologically reinforce their epistemological conceptions, Sellars attempted a more empirical, evolution-based approach. It will (...) be argued that Sellars’s view has more to recommend it because it better explains the actual mechanism of perceptual representation. (shrink)

"Die Grenzen des Revisionismus" befasst sich mit den erkenntnis- und wissenschafttheoretischen Positionen des frühen Moritz Schlick und des frühen Ernst Cassirer.

The present paper is concerned with Helmholtz’s theory of measurement. It will be argued that an adequate understanding of this theory depends on how Helmholtz’s application of the concepts of perception and coincidence is interpreted. In contrast both to conventionalist and Kantian readings of Helmholtz’s theory, a more realistic interpretation will be suggested.

This article considers the evolution of Feigl's attempt at establishing a stable form of scientific realism. I will argue that Feigl's work in that area should be appreciated for two reasons: it represents a telling case against the view of there being an unbridgeable ‘analytic-continental divide’ in the context of twentieth-century philosophy; it contradicts the idea that scientific realism is at odds with logical empiricism. It will be shown that Feigl developed his scientific realist position from within the logical empiricists’ (...) Vienna Circle. This, in turn, necessitates a fresh approach toward the contemporary scientific realism debate. (shrink)

Eino Kaila's thought occupies a curious position within the logical empiricist movement. Along with Hans Reichenbach, Herbert Feigl, and the early Moritz Schlick, Kaila advocates a realist approach towards science and the project of a “scientific world conception”. This realist approach was chiefly directed at both Kantianism and Poincaréan conventionalism. The case in point was the theory of measurement. According to Kaila, the foundations of physical reality are characterized by the existence of invariant systems of relations, which he called structures. (...) In a certain sense, these invariant structures, he maintained, are constituted in the act of measuring. By “constitution”, however, Kaila meant neither the dependency of the objects of measurement on a priori concepts (or Kantian categories) nor their being effected by conventional stipulations in a Poincaréan sense. He held that invariant structures are, quite literally, real: they exist prior to and independently of our theoretical capacity. By executing measurements, invariant structures are detected and objectively determinable by laws of nature. (shrink)

This volume is dedicated to the life and work of Ernest Nagel counted among the influential twentieth-century philosophers of science. Forgotten by the history of philosophy of science community in recent years, this volume introduces Nagel’s philosophy to a new generation of readers and highlights the merits and originality of his works. Best known in the history of philosophy as a major American representative of logical empiricism with some pragmatist and naturalist leanings, Nagel’s interests and activities went beyond these limits. (...) His career was marked with a strong and determined intention of harmonizing the European scientific worldview of logical empiricism and American naturalism/pragmatism. His most famous and systematic treatise on, The Structure of Science, appeared just one year before Thomas Kuhn’s even more renowned, The Structure of Scientific Revolutions. As a reflection of Nagel’s interdisciplinary work, the contributing authors’ articles are connected both historically and systematically. The volume will appeal to students mainly at the graduate level and academic scholars. Since the volume treats historical, philosophical, physical, social and general scientific questions, it will be of interest to historians and philosophers of science, epistemologists, social scientists, and anyone interested in the history of analytic philosophy and twentieth-century intellectual history. (shrink)

The late nineteenth- and early twentieth-century debate over ‘internal’ and ‘external’ relations is well explored, as far as its course in Britain is concerned. F. H. Bradley’s idealistic internalism, on the one hand, and Bertrand Russell’s realistic externalism, on the other, were at the center of this debate. Less well known, however, is that there was also a discussion about relations in the United States at the time. The central figures in this discussion were Edward Gleason Spaulding and John Dewey. (...) Like Russell, Spaulding advocated a realist-inspired externalism, while Dewey criticized this viewpoint from a pragmatist perspective. The aim of the present paper is to reconstruct the exchange between Spaulding and Dewey and to elaborate the specifics of this exchange. In doing so it will emerge, among other things, that, in contrast to Bradley’s idealist rejection of externalism, Dewey’s pragmatist attempt at a refutation was more in line with common sense and science and that Spaulding’s version of externalism differed markedly from Russell’s in its strong empirical orientation. Overall, an undeservedly forgotten chapter in the history of early twentieth-century American philosophy is revisited and reassessed. (shrink)

The aim of this paper is to show that the French philosopher and historian of science Abel Rey played a more influential role in the formative phase of the Vienna Circle than hitherto supposed. On the whole, it will be argued that Rey's contribution had political impact. His interpretation of "modern physics" in 1907 in the face of the alleged "bankruptcy of science" should be appreciated as a masterpiece of applied enlightenment thought. As such, it was especially paradigmatic for Philipp (...) Frank's "positivist" defense of the theory of relativity and quantum mechanics against the irrationalist tendencies of the 1920s and 1930s. (shrink)

This paper examines Ralph Barton Perry's analysis of the ‘ego-centric predicament’. It will be shown that Perry convincingly argued against prevailing contemporary versions of idealism and that it makes perfectly good sense to consider him a precursor of subsequent trends in American analytic philosophy. Perry's appraisal and promotion of the contemporary logic of relations in the framework of early twentieth-century American neorealism provides further evidence of his being a proto-analytic philosopher. His personal acquaintance with Bertrand Russell proved instructive in this (...) regard. On the whole, Perry's distinctive approach to philosophy was instrumental in establishing the analytic style of reasoning in the United States. This paper is devoted to substantiating this claim. It is thus hoped that a clearer picture of early twentieth-century American philosophy will begin to emerge. (shrink)

Helmholtz's theory of space had significant impact on Schlick's early ?critical realist? point of view. However, it will be argued in this paper that Schlick's appropriation of Helmholtz's ideas eventually lead to a rather radical transformation of the original Helmholtzian position.

Analytic philosophy in the United States emerged parallel to the demise of idealism. During the second half of the nineteenth century, Josiah Royce had contributed importantly to the predominance of idealist systems and corresponding academic groups. With the rise of pragmatism and new realism, the situation changed dramatically: the idealist movement lost momentum and realism began to dominate the discourse. The present paper argues that the critiques of idealism put forward by the realists during the first two decades of the (...) twentieth century were instrumental to the emergence of analytic philosophy in the United States. As I will explain, Ralph Barton Perry (1876–1957) was the key figure in the underinvestigated genesis of this movement. (shrink)

Roy Wood Sellars (1880–1973) is often reduced to his role as father of Wilfrid Sellars. This is unfair because during the 1920s, ‘30s, and ‘40s, Roy Wood was one of the leading figures of the then prevailing American realist movement. In the present paper, I will focus on one particular facet of R. W. Sellars’ philosophical approach: his continual examination of Albert Einstein’s special theory of relativity. I shall primarily reconstruct his discussion of Einstein’s theory, as it can be found (...) in his seminal The Philosophy of Physical Realism (1932). In contrast to authors such as Bertrand Russell or Émile Meyerson, Sellars refused to interpret special relativity in a realist vein. In his view, it should be seen as an “ars mensurandi” and thus being interpreted purely operationally. As with Einstein himself, the concept of simultaneity was his paradigm case in point. However, Sellars opined that besides the physical (mensurational) concepts of time and simultaneity there also exists an ontological understanding of these notions. “Real” time and “absolute” simultaneity are, according to Sellars, the indispensable non-relativistic counterparts to Einstein’s respective relativistic conceptions. They are to be interpreted realistically since they prove, Sellars maintains, to be explanatory regarding events in Einstein-Minkowski’s world. In the course of the paper, I shall compare this view with the one defended by Henri Bergson. Furthermore, Sellars’ later approach from the 1940s and ‘50s will be briefly considered and critically discussed by confronting it with more recent attempts at ontologically ‘grounding’ special relativistic kinematics. (shrink)

Critical realism is a frequently mentioned, but not very well-known, late nineteenth-/early twentieth-century philosophical tradition. Having its roots in Kantian epistemology, critical realism is best characterized as a revisionist approach toward the original Kantian doctrine. Its most outstanding thesis is the idea that Kantian things-in-themselves are knowable. This idea was—at least implicitly—suggested by thinkers such as Alois Riehl, Wilhelm Wundt, and Oswald Külpe. Interestingly enough, the philosophical position of the early Moritz Schlick stands in the critical realist tradition as well. (...) As will be outlined in the course of this paper, both Schlick’s magnum opus General Theory of Knowledge (1918) and his seminal Space and Time in Contemporary Physics (1917) are based on the assumption that the objects of science are relations and that relations have the status of Kantian things-in-themselves. By way of conclusion, I shall point out that this— more or less directly—leads to the current debate over ‘structural’ realism. (shrink)

Scientific realism is the view that the theoretical entities of science exist. Atoms, forces, electromagnetic fields, and so on, are not merely instruments for organizing observational data but are real and causally effective. This view seems to be hardly compatible with the logical empiricist agenda: As common wisdom has it, logical empiricism is mainly characterized by a strong verification criterion of meaning, i.e., by the project of defining the meaning of theoretical terms by virtue of the meaning of purely observational (...) terms. However, it has been largely ignored by the historians of logical empiricism that there indeed existed a realist faction within the logical empiricist movement. (shrink)

Pierre Duhem gilt ais einer der wichtigsten Reprüsentanten der franzosischen Wissenschaftsphilosophie um 1900. Seine Konzeption physikalischer Theorien wird üblicherweise ais moderne Umsetzung des antiken – proto-positivistischen – Programms der „Rettung der Phänomene‟ angesehen. Diese Sicht ist richtig, bedarf aber der Ergänzung, indem der diskursive Kontext der Duhemschen Position berücksichtigt wird. Im vorliegenden Beitrag wird dargelegt, dass Duhems philosophischer Zeitgenosse Abel Rey eine zentrale Rolle in diesem Zusammenhang spielte.

Ernest Nagel was one of the first philosophers of science who reflected systematically on the methodology of the social sciences. His cooperation with Paul F. Lazarsfeld at Columbia University proved to be instructive in this regard. Moreover, Nagel stood in close contact with representatives of sociological functionalism and published, in 1956, a contribution on the prospects of a formalization of functionalism. In his seminal The Structure of Science from 1961, Nagel devoted two long chapters to methodological and explanatory problems of (...) the social sciences. The aim of the present chapter is to rationally reconstruct this 1961 account. I will proceed in three steps: first, I shall shed some light on Nagel’s discussion of the problem of a clear-cut demarcation between the natural and the social sciences; then Nagel’s interpretation of the presumptive ‘immaturity’ of the social sciences will be taken into account; finally, two case studies will be provided in order to illustrate the implications of Nagel’s particular analysis. (shrink)

Logical empiricism is commonly seen as a counter-position to scientific realism. In the present paper it is shown that there indeed existed a realist faction within the logical empiricist movement. In particular, I shall point out that at least four types of realistic arguments can be distinguished within this faction: Reichenbach’s ‘probabilistic argument,’ Feigl’s ‘pragmatic argument,’ Hempel’s ‘indispensability argument,’ and Kaila’s ‘invariantist argument.’ All these variations of arguments are intended to prevent the logical empiricist agenda from the shortcomings of radical (...) positivism, instrumentalism, and other forms of scientific antirealism. On the whole, it will be seen that logical empiricism and scientific realism are essentially compatible with each other. Especially Kaila’s invariantist approach to science (and nature) comes quite close to what nowadays is discussed under the label ‘structural realism.’ This, in turn, necessitates a fundamental reevaluation of Kaila’s role in the logical empiricist movement in particular and in twentieth-century philosophy of science in general. (shrink)

Alois Riehl was one of the few Kantian-inspired philosophers of the late nineteenth and early twentieth century who argued for a realist approach to Kant’s original doctrine. He therefore rejected prevailing idealist reconstructions and attempted to establish a view of Kant as an important forerunner of what he programmatically called ‘critical realism.’ In the present paper it will be shown what this exactly meant for the interpretation of Kant’s and especially Riehl’s own critique of idealism as a systematic position. In (...) particular, it is stated that anti-idealism in Riehlian terms amounts to a ‘realistic rehabilitation’ of Kantian things-in-themselves. Furthermore, some connections are drawn to early-twentieth century American realism. (shrink)

This paper explores the philosophical approach of the Swedish-born thinker John Elof Boodin. It will be shown that Boodin’s philosophical development ran through various stages, beginning with more or less “orthodox” pragmatism and ending with what he labeled “functional” realism. My principal thesis is that, in the last analysis, Boodin failed in establishing a stable systematic point of view. However, his philosophical development is worth considering in some detail because it nicely reflects the situation of a European-born philosopher in early-twentieth (...) century America. (shrink)

Structure is the connecting link between the early epistemologies of Cassirer, Schlick, and Carnap. However, there are important programmatic differences among Cassirer’s, Schlick’s, and Carnap’s articulations of the structuralistic point of view. Whereas Cassirer hoped to argue in favor of an ‚idealist‘ and Schlick in favor of a ‚realist‘ conception of structure, Carnap thought it possible to remain neutral in this respect. I will argue that Carnap’s approach, though at first sight promising, was doomed to failure precisely because of its (...) base in ‚neutralism‘. In order to distinguish mathematical from physical structures, a certain form of realism is necessarily required. (shrink)

It is a common view in cognitive psychology that there is a fundamental difference between what may be called descriptive information, on the one hand, and depictive information, on the other. While the first kind of information is — ideally spoken — non-pictorial and usually equated with the content of a proposition, the second kind of information is pictorial by defmition and accordingly equated with the content of a mental image. Granting the correctness of this distinction, cognitive scientists differ on (...) the role played by mental images in epistemic processes. One faction, represented by the writings of Zenon Pylyshyn, asserts that mental images are merely an epiphenomenon of a more general and abstract processing system, and that they are in principle dispensable since they do not have any truth value.1 Another faction, represented by the writings of Stephen Kosslyn, favors the opposite view, maintaining that mental images are indispensable since they play, in spite of their lack of truth value, a fundamental role in human thinking.2 As Arthur I. Miller has proposed in his book Imagery in Scientific Thought, these two factions may be labeled as the “antiimagist” and the “pro-imagist” view, respectively. (shrink)

The problem of measurement can be reformulated as the problem of measurability: What are the conditions under which measurement becomes possible at all? And what is the ontological status of concrete measurement outcomes? It will be shown in the course of this article that what Joel Michell deemed the ‘representational theory’ of measurement provides an adequate framework for answering these questions. However, contrary to Michell, I will point out that Hermann von Helmholtz should be seen as an important forerunner of (...) the representational view. Furthermore, it will be argued that the Finnish logical empiricist Eino Kaila carried on Helmholtz’s approach by combining it with a certain form of ontological invariantism. On the whole, a ‘structural realist’ account of measurement will be suggested. (shrink)

Wilhelm Ostwald’s program of a physical energetics is the attempt at a comprehensive description of nature on the basis of the concept of energy. In his book Energetische Grundlagen der Kulturwissenschaft, first published in 1909, Ostwald applies this conception to the area of culture. His central assumption is that cultural phenomena should be described by the energetic notion of “efficiency relation” (Güteverhältnis). His systematic thesis is that science, when organized according to the Machian “principle of economy,” proves as the highest (...) form of cultural expression, since it instantiates the notion of quality relation most efficiently, that is, “with the lowest energy expenditure.” This view echoes August Comte’s “law of the three stages” and is intended to supply it with a scientific, i.e., energetic foundation. Max Weber regarded Ostwald’s energetic theory of culture as a misguided attempt at an absolutization of the methods of concept formation within the natural sciences. As he wrote in his devastating review essay “’Energetische’ Kulturtheorien” (1909), Ostwald transformed a certain world view (Weltbild) into a scientifically frivolous ideology (Weltanschauung). In particular, Ostwald’s adherence to the Comtean law of three stages and the associated hierarchy of the sciences were criticized by Weber as outdated and completely beside the point. According to Weber, the concepts of the cultural sciences are not at all dependent on natural scientific concepts such as ‘energy.’ In his view, culture cannot be reduced to nature. But exactly this seemed to be the principal aim of Ostwald’s program. In this paper, I will critically investigate Weber’s critique of that program. I shall argue that Ostwald’s assumption of a natural basis of culture can be ‘rescued’ as a methodological device, but that Ostwald’s – thoroughly substantialist – view of energy should be discarded as a metaphysical relict of ancient ‘stuff ontology.’ . (shrink)

It is shown that Külpe’s critical realism anticipates several elements of modern scientific realism. Furthermore, a comparison with contemporary American critical realism is drawn. On the whole, it is argued that more intensive relevant research in the future is needed.

Phänomenologie, Neukantianismus und logischer Empirismus waren die dominanten Strömungen in der deutschsprachigen theoretischen Philosophie des frühen 20. Jahrhunderts. Die Beziehungen dieser drei philosophischen Positionen untereinander wurden in der philosophiehistorischen Forschung bisher allenfalls in Teilkonstellationen untersucht. Der Band liefert erstmals eine Zusammenschau dieser drei Positionen. Die Autoren gehen in ihren Aufsätzen der Frage auf den Grund, wie die Beziehungen zueinander zu bestimmen sind und zwar unter dem Gesichtspunkt der wissenschaftlichen Philosophie, dem Projekt, das alle drei Protagonisten – Edmund Husserl, Ernst Cassirer (...) und Moritz Schlick – verfolgten und dabei jeweils eine eigene Version entwickelten. Die Aufsätze sind in drei Blöcken zusammengefasst. Der erste Block widmet sich Edmund Husserls Phänomenologie, der zweite Ernst Cassirers Neukantianismus und der dritte dem logischem Empirismus von Moritz Schlick. In ihren Beiträgen stellen die Autoren immer wieder Bezüge zu den jeweils anderen Protagonisten und ihren für die Fragestellung maßgeblichen Schriften her. Der Band richtet sich an Forscher und Studierende, die sich mit der Geschichte der Wissenschaftsphilosophie befassen und die Struktur des Diskurses in der ‚kontinentalen‘ Philosophie des frühen 20. Jahrhunderts nachvollziehen möchten. (shrink)

American critical realism was defended in two versions, an “essentialist” and an “empirical.” The main proponent of the essentialist version was George Santayana, who in his Scepticism and Animal Faith (1923) outlined a critical realist account of epistemology based substantially on an articulate doctrine of essences. In the present paper, an attempt is made to critically examine the resulting approach, particularly in relation to perception. It will be argued that Santayana failed to develop a sufficiently convincing essentialist view of perception, (...) and that his actual significance in terms of the impact of the critical realist movement was, contrary to what is often claimed, quite limited. (shrink)

The early twentieth-century American neo-realists’ approach to consciousness is historically reconstructed and critically discussed. With reference to the relevant works of Ralph Barton Perry, William Pepperrell Montague, and Edwin B. Holt, it is argued that Montague and Holt, in particular, struggled with the problem of error and disagreed strongly on their solutions to it. Finally, a line is drawn to related discussions in contemporary philosophy of mind.

Wir leben in unübersichtlichen Zeiten: Sogenannte Fake News verzerren, verdrehen und leugnen Informationen mit dem Ziel umfassender Verunsicherung; Verschwörungstheoretiker unterstellen dunkle Mächte und rufen teils sehr explizit zum Aufstand auf; Covid-19 treibt uns gnadenlos vor sich her, und niemand weiß so recht, wohin das alles noch führt. Was sagen Philosophinnen und Philosophen zu all dem? Es ist dies die Frage, der im Rahmen dieses Literaturberichtes nachgegangen werden soll. Ein Anspruch auf Vollständigkeit wird dabei freilich nicht erhoben. Was aber geleistet werden (...) kann und soll, ist, eine Bestandsaufnahme zu liefern, die zumindest ein Zwischenfazit zum gegenwärtigen Stand der philosophischen Auseinandersetzung mit Fragen unserer Zeit erlaubt. (shrink)

The relationship between American pragmatism and American critical realism needs to be reconsidered. The two currents shared many aspects, but there were also significant differences. One of these differences pertains to the object of perception or, more precisely, to the question of what we talk about when we talk about this, for example, being blue. By re-addressing that question, some light can be shed on the historical development of analytic philosophy in the United States during the first half of the (...) twentieth century. My case in point is the respective positions of C. I. Lewis and R. W. Sellars. I shall point out that Sellars’s view has more to recommend it because it provides a more compelling framework for a comprehensive explanation of perception. (shrink)

This paper shows that Cassirer’s philosophy of mathematics underwent a significant transformation by the end of the 1920s. This transformation was due to Cassirer’s reception of the ‘foundational crisis’ within mathematics itself. David Hilbert’s conception of the ‘ideal elements’ of mathematics attracted Cassirer’s particular attention. Indeed, he sought a ‘transcendental deduction’ of these elements. Reflection on this issue is therefore essential to providing an adequate interpretation of the later Cassirer’s enterprise in the philosophy of mathematics.

This paper scrutinizes and chronologically reconstructs Hans Vaihinger’s impact on contemporary Kant research. It provides an account of his engagement at both the exegetical and the institutional level. More broadly, it allows us to appreciate – for the first time, and in a comprehensive way – Vaihinger’s significance to the assessment of Kant’s legacy.

Among the “Ernest Nagel Papers 1930–1988” at Columbia University’s Rare Book & Manuscript Library, there is a file at Box 7, entitled “The Philosophy of Science: University of Delaware 1961”. This is the edited text with some editorial comments and polishing.

Hans Vaihinger and the Stiftung Nietzsche-Archiv. The Letters to Richard Oehler. Hans Vaihinger’s letters to Richard Oehler document the ideological constellation in the context of the First World War. Unconcealed enthusiasm for the war, associated national-chauvinist resentment, and pronounced anti-communism immediately after the war clearly emerge. At first sight, this may be surprising, since Vaihinger is generally regarded as a progressive liberal pacifist. As this article attempts to make clear, however, it is also evident in Vaihinger’s case that the First (...) World War and its immediate aftermath led – at least temporarily – to quite questionable intellectual attitudes even among declared pacifists. In this respect, Vaihinger’s letters to Nietzsche’s cousin, librarian at the Nietzsche Archive in Weimar and later convinced National Socialist Richard Oehler are evaluated as revealing documents of contemporary history. (shrink)