In this paper I argue that inconsistencies in scientific theories may arise from the type of causality relation they—tacitly or explicitly—embody. All these seemingly different causality relations can be subsumed under a general strategy developed to defeat the paradoxes which inevitably occur in our experience of the real. With respect to this, scientific theories are just a subclass of the larger class of metaphysical theories, construed as theories that attempt to explain a (part of) the world consistently. All metaphysical theories (...) share a common structural backbone specificially designed to defeat paradoxes, their often wildly diverging ontological claims notwithstanding. This common structure shapes the procedures which govern the invention of ideas in the context of such theories, by codifying some onto-logical a priori assumptions regarding the consistency of reality into its bare conceptual framework. Causality plays a key rôle here, because it implies conservation of identity, itself a far from simple notion. It imposes strong demands on the universalising power of the theories concerned. These demands are often met by the introduction of a metalevel which encompasses the notions of ‘system’ and ‘lawful behaviour’. In classical mechanics, the division between universal and particular leaves its traces in the separate treatment of cinematics and dynamics. The fundamental backbone’s specific gestalt thus functions as a theory’s individual signature and paves the way to a comparative historical approach towards their study. An important part of my paper therefore explores the strong connections between paradoxes as they appear and are dealt with in ancient philosophy and their re-appearance in early modern natural philosophy and science. This analysis is applied to the mechanical theories of Newton and Leibniz, with some surprising results. (shrink)

L’emploi par Poincaré de la notion de convention au sujet des hypothèses géométriques signale un déplacement par rapport aux problématiques traditionnelles. La découverte des géométries non euclidiennes montre qu’il n’y a pas de cadre spatial unique ; plusieurs systèmes sont possibles. On affirme ainsi l’existence d’un aspect essentiel de la connaissance qui ne dérive pas des faits et ne relève ni de l’inné ni de l’intuition. L’introduction de la notion de convention, dont il s’agit de prendre la mesure, ouvre la (...) voie à une prise en compte des facteurs décisionnels en science. Nous nous proposons, dans cet article, d’analyser l’argumentation de Poincaré en reconstruisant sa position face aux doctrines de Kant et de Mill.By understanding geometrical hypotheses as conventions, Poincaré significantly alters the traditional philosophical discussion of space. The discovery of non-Euclidean geometries proves that there is not a single spatial framework ; several systems are possible. Thus, there is an essential feature of knowledge that derives neither from empirical facts nor from intuition or innate understanding. The introduction of the notion of convention, whose significance is at issue here, provides a way of understanding the element of free choice in science. This article aims at analyzing Poincaré’s reasoning, by contrasting his viewpoint with that of Kant and Mill. (shrink)

This article continues the discussion, begun in an earlier contribution to Perspectives on Science, of recent arguments over the coherence of Newton’s physics. The arguments turn on his use of the term “force” in two apparently different ways in the second law. This ambiguity remains because Newton conceived of mathematics in two entirely different ways—the first as a way of describing how things are in themselves, the second as a method of approximation. These two conceptions were, in turn, reflections of (...) how, according to Newton, one stands in relation to two ideas of God—God as pure being and God as will. (shrink)

What is the contribution of Duhem’s work to the modern historiography? His interpreters have been discussing this question and ordinarily have recognized that the main aspect in his extensive work is connected with his research of medieval science. It has become customary to speak of the “discovery of medieval science” as his foremost historiographic achievement. This paper aims to discuss some aspects of Duhem’s historiography more for its promotion of a new historical perspective than for its results. Duhem’s legacy for (...) modern historiography can be investigated from the characteristics that mark this new perspective, as regarded by Thomas Kuhn. (shrink)

Gerald Holton has famously described Einstein’s career as a philosophical “pilgrimage”. Starting on “the historic ground” of Machian positivism and phenomenalism, following the completion of general relativity in late 1915, Einstein’s philosophy endured (a) a speculative turn: physical theorizing appears as ultimately a “pure mathematical construction” guided by faith in the simplicity of nature and (b) a realistic turn: science is “nothing more than a refinement ”of the everyday belief in the existence of mind-independent physical reality. Nevertheless, Einstein’s mathematical constructivism (...) that supports his unified field theory program appears to be, at first sight, hardly compatible with the common sense realism with which he countered quantum theory. Thus, literature on Einstein’s philosophy of science has often struggled in finding the thread between ostensibly conflicting philosophical pronouncements. This paper supports the claim that Einstein’s dialog with Émile Meyerson from the mid 1920s till the early 1930s might be a neglected source to solve this riddle. According to Einstein, Meyerson shared (a) his belief in the independent existence of an external world and (b) his conviction that the latter can be grasped only by speculative means. Einstein could present his search for a unified field theory as a metaphysical-realistic program opposed to the positivistic-operationalist spirit of quantum mechanics. (shrink)

L'article s'interroge sur la tradition française en matière d'épistémologie et analyse la réaction du milieu philosophique du début du xxe siècle face à la crise des acquis philosophiques traditionnels provoquée par le développement des sciences. Les interventions au premier congrès international de Philosophie de 1900 montrent que la philosophie essaie de continuer à exercer une hégémonie sur les sciences, mais que, pour réagir à la crise, elle doit s'engager dans l'histoire des sciences. L'histoire des sciences devient alors le moyen employé (...) par la philosophie pour essayer de garder sa place privilégiée dans l'ensemble du savoir: elle est donc faite par des philosophes qui, de ce fait, en contrôlent les lieux institutionnels. Il devient dès lors possible de tracer une ligne qui relie les questions des philosophes de 1900 à celles qui préoccupent ceux de l'entre-deux-guerres, notamment Gaston Bachelard. (shrink)

L'article s'interroge sur la tradition française en matière d'épistémologie et analyse la réaction du milieu philosophique du début du xxe siècle face à la crise des acquis philosophiques traditionnels provoquée par le développement des sciences. Les interventions au premier congrès international de Philosophie de 1900 montrent que la philosophie essaie de continuer à exercer une hégémonie sur les sciences, mais que, pour réagir à la crise, elle doit s'engager dans l'histoire des sciences. L'histoire des sciences devient alors le moyen employé (...) par la philosophie pour essayer de garder sa place privilégiée dans l'ensemble du savoir: elle est donc faite par des philosophes qui, de ce fait, en contrôlent les lieux institutionnels. Il devient dès lors possible de tracer une ligne qui relie les questions des philosophes de 1900 à celles qui préoccupent ceux de l'entre-deux-guerres, notamment Gaston Bachelard. (shrink)

The paper is devoted to an overview of Cassirer’s work both as historian of philosophy and historian of science. Indeed, the “intelletcual cooperation” between history of philosophy and history of science represents an essential feature of Cassirer’s style of philosophizing: while the roots of a wide exploration stretching from Renaissance thought to modern physics go back to the Neo-Kantianism of the Marburg School, the results of a similar cross-fertilization of research fields have deeply contributed to shaping new standards of inquiry. (...) Cassirer’s relationship with the Warburg milieu in Hamburg and late in his life with the American intellectual scenario are surely worthy of closer investigation. Distinguished scholars such as Meyerson, Brunschvicg, Burtt, Koyré, Metzger, Lovejoy, Kristeller, have disussed, appreciated, critizised Cassirer’s still today fascinating studies devoted to Pico della Mirandola, Galileo, Newton, Leibniz, to mention but a few. To explore some of these aspects focusing both on affinities and differences within a cosmpolitian intellectual community can provide a better understanding of philosophy and history of science in the first half of 20th century. Cassirer’s legacy requires, therefore, a new assessment. (shrink)

There exists a fundamental convergence between some major trends of modern epistemology—as outlined, for instance, by Filmer Northrop and Henry Margenau—and the theories actually developed within sciences of the human mind where two types of thought—one implicit and, the other, explicit—tend to refer to two different lines of development. Moreover, these theories can find in the psychology of Lev Vygotsky some seminal hypotheses of a major importance. In order to highlight this convergence, we parallel the role played by structured conceptual (...) systems in Vygotsky’s conception of intellectual development and Northrop’s epistemology. We show how these conceptual systems account for the notion of causality and can explain the success of scientific thought, i.e. its possible match with the real world, while this match falsely justified an overall biological model of intellectual development in Jean Piaget’s work. We conclude that dual process theorists should no longer neglect cognitive tools, and especially conceptual systems, which underpin the awareness and mastery of thought that are characteristic of type 2 processes. This whole analysis leads us to maintain that human psychology is not characterized in the first instance by a need to act, but a quest for meaning. (shrink)

The explanatory power of structures in analytical sociologists’ agent-based models brings into question methodological individualism. We defend that from an explanatory point of view, the syntactic properties of models require semantic conditions of interpretation drawn from a conceptual research framework; in such a framework, social/relational structures have only partial, explanatory power ; and taking the explanation further through generative mechanism modeling necessitates calling upon methodological individualism’s generic framework of interpretation that relies on social actors’ rational capacity. According to this interpretive (...) framework, forces in action in society are governed by the subjective meaning of/the reasons for individual actions. (shrink)

In diesem Beitrag lege ich dar, dass in der zweiten Hälfte des 20. Jahrhunderts das Konzept von Werkstoffen (materials) als charakteristischer ontologischer Typus eines neuen Forschungs- und Wissenschaftsstils aufkam. Das soll nicht heißen, dass Werkstoffe niemals zuvor wissenschaftlich bearbeitet worden wären. Zweifellos hatten sich zahlreiche wissenschaftliche Disziplinen mit den Eigenschaften einer ganzen Reihe von Werkstoffen befasst. Doch wurden dabei Werkstoffe nicht als generische, also alle Arten von Stoffen umfassende, Entität betrachtet.Ziel dieses Aufsatzes ist zu verstehen, wie Werkstoffe als Gattungseinheit entstanden (...) sind und zu Objekten einer Wissenschaft wurden, die so unterschiedliche Dinge wie Papier, Holz, Metalle, Beton, Keramik, Polymere, Halbleiter und Kohlenstoff-Nanoröhren umfasst. Im Bemühen, die historischen Begleitumstände des Auftretens von Werkstoffen zu bestimmen, werde ich diese zunächst in historischer und ontologischer Hinsicht einordnen. Wie war es möglich, all diese Dinge in einer einzigen Gattung zu vereinigen? Dann wende ich mich dem sich verändernden Status von Werkstoffen zu, ein Resultat der erfolgreichen Materialforschung. Werkstoffe sind nicht länger die Vorbedingungen, die dem Entwurfsprozess Beschränkungen auferlegen, sondern werden nun selbst spezifisch entworfen. Solche materials by design sind echte, individuell zugeschnittene Schöpfungen und nicht nur einfach Handelsprodukte. Zudem birgt der Wandel ihres ontologischer Status ein Paradox mit seiner Tendenz zur Entmaterialisierung von Technik. (shrink)

La Valeur inductive de la relativité est sans conteste l'ouvrage le plus méconnu de toute l'oeuvre «philosophique» de Gaston Bachelard. Au silence presque total, à l'absence de lectures, ne répondent que des interprétations du« premier genre», appuyées sur un certain ouï-dire discursif, mais qui font l'autorité des pseudo-standards. Les positions bachelardiennes sont ici confrontées à La Déduction relativiste d'Émile Meyerson. Le poids de l'analyse portera essentiellement sur un dépl(o)iement du dispositif bachelardien d'induction et de construction. L'appareillage « inductif » doit (...) être pensé sur le modèle électromagnétique, et la position «constructiviste» est toujours liée au travail de synthèse. Enfin, c'est une véritable métaphysique que semble dès lors devoir engendrer cette « pensée des sciences ». (shrink)

Gilles Deleuze and Raymond Ruyer have been sui generis morphologists. Their peculiar contributions to philosophical morphology can cast light on some problematic issues concerning the relationship between “form” and “formation”. In this respect, the musical concepts of «rhythm» and «melody» would play an important role insofar as to address respectively the problem of temporality of the living form and the problem of its events-based normativity. In the first paragraph, I address some morphological positions in Deleuze’s philosophy of creation, in relation (...) to his perspective on time and genesis. In the second paragraph I deal with Ruyer’s symmetrical view, which can provide further clarifications on the idea of biological constraints’ modification. The concepts of rhythmic pulsation and melodic orientation are shown to be two crucial coordinates in order to approach the intrinsic features of the living. (shrink)