Abduction* is the genus with deduction and induction as species. Modus tollens is backward reasoning as an unknown proposition is inferred from a known proposition. Reductio ad absurdum is abductive because the conclusion is inferred by deriving a contradiction from an assumption. Inductive reasoning from effect to cause is also backward reasoning. But abduction* consists of forward reasoning as well. The generic structure of abductive* argumentation is universal among all cultures, occupations and disciplines.

The paper demonstrates that Parmenides’ monism is a logical consequence of his criteria for philosophy, in conjunction with the logical operators he uses, and their holistic connection. Parmenides, I argue, is the first philosopher to set out explicit criteria for philosophy, establishing as criterion not only consistency, but also what I call rational admissibility, the requirement when giving an account of something that the account be based on rational analysis and can withstand rational scrutiny. I give a detailed account of (...) the logical operators Parmenides uses in his argument and of the way in which his notion of being is tailored to fit both them and his criteria for philoso-phy. (shrink)

Proposes a new way of understanding the nature of metaphysics, focusing on nonreductionist emergence theory, both in ancient and modern philosophy, as well as in contemporary philosophy of science.

ArgumentIn 1895 when the Lumière brothers unveiled their cinematographic camera, many scientists were elated. Scientists hoped that the machine would fulfill a desire that had driven research for nearly half a century: that of capturing the world in its own image. But their elation was surprisingly short-lived, and many researchers quickly distanced themselves from the new medium. The cinematographic camera was soon split into two machines, one for recording and one for projecting, enabling it to further escape from the laboratory. (...) The philosopher Henri Bergson joined scientists, such as Etienne-Jules Marey, who found problems with the new cinematographic order. Those who had worked to make the dream come true found that their efforts had been subverted. This essay focuses on the desire to build a cinematographic camera, with the purpose of elucidating how dreams and reality mix in the development of science and technology. It is about desired machines and their often unexpected results. The interplay between what “is” (the technical), what “ought” (the ethical), and what “could” be (the fantastical) drives scientific research. (shrink)

The central recommendation of this article is that philosophers trained in the analytic tradition ought to add the sensibilities and skills of the historian to their methodological toolkit. The value of an historical approach to strictly philosophical matters is illustrated by a case study focussing on the medieval origin of conceivability arguments and contemporary views of modality. It is shown that common metaphilosophical views about the nature of the philosophical enterprise as well as certain inference patterns found in thinkers from (...) Descartes to Chalmers have their origin in the theological concerns of the Scholastics. Since these assumptions and inference patterns are difficult to motivate when shorn of their original theological context, the upshot is that much post-Cartesian philosophy is cast in an altogether unfamiliar, and probably unwelcome, light. The methodological point, however, is that this philosophical gain is born of acquaintance with the history of ideas. (shrink)

Algunas de las preguntas fundamentales de la filosofía del arte son: 1) ¿Qué es una obra de arte?, 2) ¿Qué es Arte?, 3) ¿Qué es el arte? Responderlas es determinar el sentido del arte. Este tipo de preguntas están planteadas bajo la fórmula ¿Qué es X?, es decir, preguntas en las cuales en lo simple esta lo complejo, preguntas en donde lo simple no quiere decir que sean sencillas; son preguntas que traen dentro de si su naturaleza y carácter metafísico-ontológico-gnoseológico, (...) y hasta axiológico. No es el propósito de este trabajo hacer frente o resolver estos problemas, sino proporcionar una aproximación al concepto de “obra de arte” en la época actual y como podría entenderse en relación a ciertos problemas ontológicos y epistemológicos actuales. -/- [Extended Version of: Vélez León, Paulo (2006). «Aproximaciones a la ¿obra de arte?». En Políticas al borde. Una investigación sobre el arte contemporáneo cuencano en los discursos políticos actuales, editado por Paulo Vélez León y Hernán Pacucuru. Cuenca: Universidad de Cuenca/Bienal Internacional de Cuenca, 2006, pp. 1-12]. (shrink)

Francesco Patrizi was a competent Greek scholar, a mathematician, and a Neoplatonic thinker, well known for his sharp critique of Aristotle and the Aristotelian tradition. In this article I shall present, in the first part, the importance of the concept of a three-dimensional space which is regarded as a body, as opposed to the Aristotelian two-dimensional space or interval, in Patrizi’s discussion of physical space. This point, I shall argue, is an essential part of Patrizi’s overall critique of Aristotelian science, (...) in which Epicurean, Stoic, and mainly Neoplatonic elements were brought together, in what seems like an original theory of space and a radical revision of Aristotelian physics. Moreover, I shall try to show Patrizi’s dialectical method of definition, his geometrical argumentation, and trace some of the ideas and terms used by him back to Proclus’ Commentary on Euclid. This text of Proclus, as will be shown in the second part of the article, was also important for Patrizi’s discussion of mathematical space, where Patrizi deals with the status of mathematics and redefines some mathematical concepts such as the point and the line according to his new theory of space.Keywords: Francesco Patrizi; Space; Geometry; Mathematics; Aristotle; Proclus. (shrink)

Nous proposons dans cet article des éléments nouveaux pour l’interprétation de la doctrine d’Héraclite, concernant en particulier le rôle de l’opposition des contraires en tant que générateur d’harmonie, mentionné dans les Fragments 8 et 51. Cette interprétation est basée sur l’outil conceptuel que constituent les matrices de concepts. Après avoir décrit les éléments fondamentaux qui régissent ces dernières, nous nous attachons à définir dans ce cadre conceptuel les notions d’opposition et de contraire, ainsi que d’harmonie. Cela permet de fournir une (...) interprétation ainsi qu’une justification pour la doctrine spécifique d’Héraclite, selon laquelle l’opposition des contraires est génératrice d’harmonie. (shrink)

The research is a comparative study of the atomic theories of Kanada and Democritus. Because of their pluralistic tendencies, emphasis on causality, their materialistic account of sense knowledge, and their attempt to explain the physical system by means of reduction to the configuration of its constitutive elements, both philosophers present an epistemological base that could accommodate scientific inquiry. Notwithstanding the early and expansive beginning of Indian atomism, modern scientific atomic theory traces its origin to Democritus. Through cross-cultural critical engagement of (...) parallel ideas between Kanada and Democritus, the paper aims to discover the common problems that they dealt with in order to further our understanding of the early history of atomic theory, to evaluate the relative merits and limitations of their proposed solutions, to resolve some difficulties that each account faces by appealing to the other, and to highlight their contributions to the emergence of atomic worldview. (shrink)

The extraordinary overall textual situation of Parmenides’ B1,1-3, due to complex, variegate and polymorphous causes, entailed and still entails diverse sorts of problematic issues so to constitute a true labyrinth of philological, hermeneutical and theoretical instances interwoven each other in almost inextricable way. In this analysis, a first substantial knot of philological type resulted necessary to a preliminary discrimination for making sure the textual reconstruction in order to argue then its most literarily clear and specifiable meaning. In this way it (...) was also possible to make sure its semantic and theoretical relevancies. This research leaded to outline and, hopefully, to demonstrate no textual corruption and following misunderstanding happened before sec. XIII, namely corresponding to the lecture present in the first available manuscript, the so-called cod. N, universally excluded and entirely misevaluated, even discarded; instead it is not only the principle, but the unique reliable codex. The detailed analyse including the autoptic exam is the result of enlightening the absolute goodness of this version and the reasons both philological and hermeneutical comparations, which allow to achieve its complete textual rehabilitation and so to grasp its real conceptual content. (shrink)

I offer an examination of a core element in the reflectiveness of Heraclitus’ thought, namely, his rebuke of polymathy . In doing so, I provide a response to a recent claim that Heraclitus should not be considered to be a philosopher, by attending to his paradigmatically philosophical traits. Regarding Heraclitus’ attitude to that naïve form of ‘wisdom’, i.e., polymathy, I argue that he does not advise avoiding experience of many things, rather, he advises rejecting experience of things as merely many (...) independent things in their manifoldness , and, instead, to understand their unity and thereby to unify our knowledge of them. (shrink)

This paper considers whether incompatibilism, the view that negation is to be explained in terms of a primitive notion of incompatibility, and Fregeanism, the view that arithmetical truths are analytic according to Frege’s definition of that term in §3 of Foundations of Arithmetic, can both be upheld simultaneously. Both views are attractive on their own right, in particular for a certain empiricist mind-set. They promise to account for two philosophical puzzling phenomena: the problem of negative truth and the problem of (...) epistemic access to numbers. For an incompatibilist, proofs of numerical non-identities must appeal to primitive incompatibilities. I argue that no analytic primitive incompatibilities are forthcoming. Hence incompatibilists cannot be Fregeans. (shrink)

In this paper, I discuss the use made by Aristotle of the term “element” when dealing with the atomist theory of Leucippus and Democritus. My goal is to verify which aspects of the atomist theory play the role of elements according to the definitions of Aristotle, who seems to have certain expectations regarding what can be designated as elements in the strict sense. One of them is the possibility of reciprocal transformation, the so-called “generation of elements”, which is the chemical (...) aspect at the level of the simple bodies that makes change possible at the level of sense-perceived bodies. Furthermore, I evaluate whether it is possible to find and whether it is adequate to speak of the presence of the four elements – fire, air, water and earth – in the atomist doctrine. (shrink)

The verb ‘to know’ can be used both in ascriptions of propositional knowledge and ascriptions of knowledge of acquaintance. In the formal epistemology literature, the former use of ‘know’ has attracted considerable attention, while the latter is typically regarded as derivative. This attitude may be unsatisfactory for those philosophers who, like Russell, are not willing to think of knowledge of acquaintance as a subsidiary or dependent kind of knowledge. In this paper we outline a logic of knowledge of acquaintance in (...) which ascriptions like ‘Mary knows Smith’ are regarded as formally interesting in their own right, remaining neutral on their relation to ascriptions of propositional knowledge. The resulting logical framework, which is based on Hintikka’s modal approach to epistemic logic, provides a fresh perspective on various issues and notions at play in the philosophical debate on acquaintance. (shrink)

Chinese culture is distinguished among the world’s other great traditions by the depth and intensity of its love for rock and stone. This enduring passion manifests itself both in the art of garden making, where rocks form the frame and the central focus of the classical Chinese garden, and also on a smaller scale, in the practice of collecting stones to be displayed on trays or on scholars’ desks indoors. This essay sketches a brief history of lithophilia in China, then (...) adduces the most important philosophical presuppositions for it, and concludes by suggesting some implications for our experience of, and interactions with, the realm of stone and rock. (shrink)

The paper starts with reflections on Plato’s critique of the poets and the preference many express for Aristotle’s view of poetry. The second part of the paper takes a case study of analytic treatments of ancient philosophy, including the ancient philosopher poets, to examine the poetics of analytic philosophy, diagnosing a preference in Analytic philosophy for a clean non-poetic style of presentation, and then develops this in considering how well historians of philosophy in the Analytic tradition can accommodate the contributions (...) of philosophers who wrote in verse. The final part of the paper reviews the current enthusiasm for decoding Empedocles’ vague and poetic descriptions of the cosmic cycle into a precise scientific periodicity on the basis of the recently discovered Byzantine scholia on Aristotle. I argue that this enthusiasm speaks to a desire for definite and clear numerical values in place of poetic motifs of give and take, and that this mathematical and scientific poetic is comparable to the preferred poetic of analytic philosophy. (shrink)

This is an epistemologically-driven history of the concept of evolution. Starting from its inception, this work will follow the development of this pregnant concept. However, in contradistinction to previous attempts, the objective will not be the identification of the different meanings it adopted through history, but conversely, it will let the concept to be unfolded, to be explicated and to express its own inner potentialities. The underlying thesis of the present work is, therefore, that the path that leads to the (...) development of the concept of evolution is the path that studies the possibilities of the evolution of concepts, and that the historical reconstruction of its conceptual trajectory will shed light into potential and unexploited possibilities. This methodology will provide useful tools and resources for future developments of the concept. For example, it will define the concept of transmutation as a different conceptual trajectory deviating from the one corresponding to evolution, at the onset of the 19th century. Moreover, epigenesis will not be the opposing concept to evolution, but only to simultaneous and instantaneous generation. It will demonstrate that every important system of epigenesis drew upon some kind of formative power to explain development. More importantly, it will show that the problem of preformation cannot be overlooked, and that some kind of virtual preformation must be considered in order to address the problems of generation and development. (shrink)

A pergunta, “Tudo é número?” no título do famoso artigo de 1989 de Zhmud, deixa aberto um desafio para o extremamente importante testemunho aristotélico de que “tudo é número” era a definição fundamental da filosofia pitagórica. Tal desafio não é nada simples, especialmente quando se considera que, até então, as histórias tanto da filosofia quanto da matemática antiga parecem não ter dúvidas de que esta afirmação é correta. Este artigo pretende submeter à avaliação crítica a alegação de Aristóteles de que (...) os pitagóricos acreditavam que “tudo é número”. Nossa análise dos muitos modos nos quais Aristóteles enuncia a tese de que “tudo é número” revelará, para além de variações meramente semânticas, uma contradição teórica fundamental que o próprio Aristóteles parece incapaz de resolver. De fato, três versões diferentes da doutrina estão presentes na doxografia aristotélica: uma identificação dos números com objetos sensíveis; uma identificação dos princípios dos números com os princípios das coisas que existem; uma imitação dos objetos pelos números. Enquanto as versões e parecem identificar, em termos que lembram Platão, os números com a causa material da realidade, a versão, a saber, números como causas formais da realidade, é uma reconstrução aristotélica da teoria pitagórica. Aristóteles teria sido levado a tal reconstrução pela dificuldade que encontrou para aceitar a noção pitagórica material de número, e por considerá-la, para seu gosto, fortemente marcada pela recepção da mesma teoria no ambiente da Academia. (shrink)

Aristotle’s Naïve Somatism is a re-interpretation of Aristotle’s cognitive psychology in light of certain presuppositions he holds about the living animal body. The living animal body is presumed to be sensitive, and Aristotle grounds his account of cognition in a rudimentary proprioceptive awareness one has of her body. With that presupposed metaphysics under our belts, we are in a position to see that Aristotle in de Anima (cognition chapters at least) has a di erent explanatory aim in view than that (...) which the literature generally imputes to him. He is not explicating what we would call the “mental”—the private, inner realm which some take to be of a di erent kind than the physical—as most take him to be. His explanandum is content acquisition; the explanans is showing how the body becomes like various aspects of objects. Although he famously describes the mind (nous) as unmixed with the body, he is guided by functional constrains—nous cannot be limited or qualified if it is to potentially think all things. Thus, his inquiry into cognition is philosophically limited from a contemporary perspective. Aristotle is not doing philosophy of mind, for he doesn’t seem to find the “mental” philosophically perplexing. (shrink)

I argue that these inconsistencies in wording and practice reflect the existence of two distinct Aristotelian views of inquiry, one peculiar to the Posterior Analytics and the other put forward in the Physics and practiced in the Physics and in other treatises. Although the two views overlap to some degree (e.g. both regard a rudimentary understanding of the subject as an essential first stage), the view of the syllogism as the workhorse of scientific investigation and the related view of inquiry (...) as a search for the ‘missing middle terms’ turn out to be ideas peculiar to the Analytics. Conversely, the techniques of analysis and differentiation highlighted in the Physics account receive only cursory attention in the Analytics. However, when we consider the character of Aristotle’s own inquiries, on both scientific and philosophical topics, it becomes clear that it is the Physics rather than the Posterior Analytics that gives us Aristotle’s considered view the path to knowledge. (shrink)

El objetivo de este trabajo es discutir la interpretación tradicional según la cual los razonamientos de Zenón de Elea en contra de la multiplicidad constituyen una defensa de la tesis monista. Intentaré demostrar que las objeciones zenonianas a la multiplicidad suponen una critica previa a la existencia de "lo uno". Por este motivo, Zenón no es monista ni pluralista, sino, más bien, un crítico de las perspectivas metafísicas que consideran al ser en términos numéricos, i. e. como uno o como (...) múltiple. Para ello me concentraré en el análisis de la interpretación que Aristóteles desarrolla sobre la filosofía de Zenón, considerando algunos pasajes de Física, Refutaciones sofísticas y, fundamentalmente, Metafísica, III. 4. 1001b7-13. También incluiré algunos testimonios del comentario a la Física de Simplicio, en los que se discuten las interpretaciones de Eudemo de Rodas y Alejandro de Afrodisia, que ratifican el punto de vista aristotélico sobre la filosofía de Zenón. The aim of this paper is to discuss the traditional interpretation according to which the arguments of Zeno of Elea against multiplicity constitute a defense of monism. I will try to prove that Zeno's objections on plurality suppose a previous critique to the existence of the one. Therefore Zeno is neither a monist nor a pluralist but a philosopher who criticizes metaphysical theories that consider being in numerical terms, i. e. as many or as one. I will focus on the analysis of the interpretation of Zeno's philosophy developed by Aristotle. I will consider some passages from Physics, Sophistical Refutations and mainly Metaphysics III. 4. 1001b7-13. I will also include some testimonies from Simplicius' commentary on Aristotle's Physics, where he discusses the interpretations of Eudemus of Rhodes and Alexander of Aphrodisias that support the Aristotelian point of view on Zeno's philosophy. (shrink)

The focus of this essay is on Xenophanes’ criticism of anthropomorphic representation of the gods, famously sounding like a declaration of war against a constituent part of the Greek religion, and adopting terms and a tone that are unequalled amongst “pre-Socratic” authors for their directness and explicitness. While the main features of Xenophanes’ polemic are well known thanks to some of the most studied fragments of the pre-Socratic tradition, a different line of enquiry from the usual one is attempted by (...) considering the multi-layered background of the religious beliefs revolving around the idea that the gods have human form as outlined in the tradition of epic poetry or represented in cult statues: in the light of this consideration Xenophanes’ text can take on some new characteristics. In the second part of the article, emphasis is put on the importance of the correlation Xenophanes established between the issue of the appearance of the gods and that of the certainty of knowledge, in terms that have exerted tremendous influence on later thought, most notably on Plato in the Timaeus. (shrink)

From the older handbooks to the more recent scholarly literature, Gorgias's professions about his art are taken literally at their word: conjured up in all of these accounts is the image of a hearer irresistibly overwhelmed by Gorgias's apagogic and psychagogic persuasions. Gorgias's own description of his art, in effect, replaces our description of it. "His proofs... give the impression of ineluctability" . "Thus logos is almost an independent external power which forces the hearer to do its will" . "Incurably (...) deceptive," logos has an "enormous power" that acts upon opinion, which is "easy to change" . Surprisingly, the urge to describe or paraphrase Gorgias's art has caused commentators to overlook the very best witness of it that we have: its enactment, which is to say the performative value of Gorgias's writings, especially the speeches. For if Gorgias's literary remains do nothing else, they demonstrate how one can do things with words without being explicit about what is being done, even if this means contradicting, performatively, what is being said-as for instance in his statements, so unconvincingly made, about the ostensible aims of rhetoric. Was Gorgias persuasive in practice? Was persuasion even the goal? Is logos the solitary arbiter of reality that it is so often made out to be? Through close examination of Gorgias's Helen and parts of On Not-Being, I attempt to show that persuasion is manifestly not the goal of his arguments, which in the first instance are aporetic paradoxes that expose the difficulties of defining the nature of either language or reality, and which in the last instance are instruments of cultural demystification. The only deception at work in Gorgias's writings is that of the self-deception of their audience. It is this that gives these curiously revealing documents of fifth-century Greek culture their "dissuasive," not persuasive, character. (shrink)

It might seem quite commonplace to say that Aristotle identifies fire, air, water and earth as the στοιχεῖα, or ‘elements’ – or, to be more precise, as the elements of bodies that are subject to generation and corruption. Yet there is a tradition of interpretation, already evident in the work of the sixth-century commentator John Philoponus and widespread, indeed prevalent, today, according to which Aristotle does not really believe that fire, air, water and earth are truly elemental. The basic premise (...) of this interpretation is that Aristotle takes fire, air, water and earth to be, in some sense, composite bodies and, as such, analysable into simpler constituents. But, of course, an element of bodies is defined by Aristotle himself as something into which bodies can be analysed, and which does not admit further analysis . So if fire, air, water and earth can be analysed into simpler or more basic constituents, then it would seem to follow that the latter ought to be considered Aristotle's true elements. These are usually identified as the primary contraries hot and cold, dry and wet; many, perhaps most, commentators would insist also upon prime matter as the subject upon which these contraries act. (shrink)

This paper discusses the theoretical relationship between the views of Damascius and those of Pseudo-Dionysius the Areopagite. While Damascius’ De principiis is a bold treatise devoted to investigating the hypermetaphysics of apophatism, it anticipates various theoretical positions put forward by Dionysius the Areopagite. The present paper focuses on the following. First, Damascius is the only ancient philoso­pher who systematically demonstrates the first principle to be infinite. Second, Damascius modifies the concept and in several important passages shows the infinite to be (...) superior and prior to the finite. Third, Damascius’ theory of being is the strongest ancient articulation of the nature of the One which is a clear prefiguration of the negative theology developed by Dionysius the Areopagite. (shrink)

C. Lévi-Strauss advirtió que la variedad de mitos, lejos de constituir una proliferación anárquica de relatos, exhibe un aire de familia que trasparenta la profunda unidad del pensamiento humano. A partir de esta idea, el artículo muestra cómo ciertas teorías filosóficas y científicas sobre el origen del cosmos se apoyan en una estructura narrativa implícita en los mitos cosmogónicos. Esta comparación evidencia inesperadas afinidades en el intento por responder la pregunta por el origen del cosmos. C. Lévi-Strauss showed that -far (...) from constituting an anarchic proliferation of narratives- the variety of myths exhibits a familiarity which makes the deep unity of human thought transparent. Taking this idea as starting point, the article shows how certain philosophical and scientific theories regarding the origin of the cosmos rest on an implicit narrative structure found in the cosmogonic myths. This comparison makes evident some unexpected affinities found in the attempt to answer the question regarding the origin of the cosmos. (shrink)

The call to “know thyself” is neither a matter of presence and absence to self, nor the necessary or unnecessary possibility or impossibility of self-knowledge ‒ rather it is a problem. And the oracle gives a sign of this problem by implying that which is neither spoken nor concealed. But if implication is the problem of the sign, it is because it suspends the self and the very possibility of self-knowledge.

Discussions of divine immutability normally take place against the backdrop of a presupposition of monotheism. This background makes some problems seem especially salient—for instance, does the notion that God is immutable have any implications for God’s relation to time? In what follows, I’ll consider the problem of divine immutability in the context of henotheistic conceptions of god. I take henotheism to be the view that, although there are a plurality of gods, all of them are in some sense dependent upon (...) and subordinate to one god that is the supreme first principle or archê. Henoetheism was the dominant approach to gods among the pagan philosophers of antiquity—with a few exceptions. I consider the development of henotheistic defences of divine immutability through a dialectical development from Xenophanes to Plato to Proclus. (shrink)

In the "Doxographi Graeci" the preferred short heading of Aët. 2.31 (Greek text below, p. 28) is 'On Distances', though ps.Plutarch has a long heading. This chapter is about the distances of the sun and moon from each other and from the earth (lemmas 1 to 3, in both ps.Plutarch and Stobaeus), and of the real or apparent shape of the heaven relative to its distance from the earth (lemmas 4 and 5, Stobaeus only). Parallels from Ioann. Lydus and Theodoret (...) for what is in ps.Plutarch are given by Diels in apparatu. To the best of my knowledge it has not been noticed that a version of ps.Plutarch's text is preserved in a scholium on the "Almagest", which constitutes our earliest evidence for the text. The correctness of Diels' reconstruction is questionable. Though certainty, naturally, is beyond our reach it is quite possible that these two sets of lemmas represent two distinct Aëtian (or proto-Aëtian) chapters. These may have been coalesced by Stobaeus (or Aëtius), while ps.Plutarch abridged the second (or the two final lemmas) away. These considerations necessitate an inquiry into the parallels that are available, including material from an introduction to Aratus. The vexing question of short versus long(er) chapter headings is also relevant in this context. Furthermore, the contrasting views regarding cosmic distances are not only a feature of the Placita literature with a distant origin in Aristotle, but also, apparently, of the commentary literature on Plato's "Timaeus". Arguably in a passage in Plutarch's "De facie" these two traditions intersect. Finally, a case can be made out for Eudemus not Theophrastus as an intermediary source of Presocratic astronomical data in the Placita. (shrink)

Modern thought would present only an incomplete and fragmentary picture of philosophy to us if we were to regard it as being completely disconnected from the elemental forces and sources of Greek philosophy. The corrective aspect that protects it from any such attempt at unmethodical isolation is, however, given within itself and in its own content. Its own inner progress necessarily leads it back to the principles and questions that distinguished Greek speculation, which it embodied in typical forms. The thought (...) of the modern age proves its specificity in the fact that, notwithstanding the richness of content that it gains, it remains conscious of its relatedness to these basic logical forms and strives to return to them of its own accord. They will thus themselves appear to us of their own accord and incite us to regard their contents, if we just allow ourselves to follow the course of the investigation. (shrink)

A paradox is usually described as an apparently false statement supported by an apparently good argument which departs from premises that most people would find trivially true. This survey article presents a brief overview of three different contemporary perspectives on paradoxes. According to the epistemic view, paradoxes play a crucial role in the progress of science and cannot be regarded as sound proofs of a false statement. According to the dialetheist view, the conclusion of some paradoxical reasonings is both, true (...) and false, what means that there must be some true (and false) contradictions. Finally, the mystic view understands recalcitrant paradoxes (antinomies) as unsolvable problems which show the limits of human thought and cognition. The last section of this paper focuses on the paradoxes of self-reference, a family of paradoxes (sharing some structural features) which have had a deep impact in the development of science during the twentieth century. Keywords: paradox, veridic paradox, falsidic paradox, antinomy, dialetheism, selfreference, circularity, inclosure schema. (shrink)

The notion of the heart is one of the most basic notions in ordinary language. It is central to Heidegger’s notion of thought that he relates to the primordial word Gedanc as underlying attunement that issues forth in emotional phenomena. He plays with all the etymological cognates of that word to zero in on the phenomena involved. The key experience of Erstaunen that grounds the first beginning of philosophy is paralleled by Erschrecken that grounds Heidegger’s “second beginning” and plays counterpoint (...) with the first. Along with Befindlichkeit as one’s basic attunement, these are key phenomena that belong to the heart, not to ‘intellect’ or ‘will.’ Thinking in terms of the intellect is das rechnende Denken¸ thinking in terms of the heart, besinnliche Nachdenken. It is the latter that provides the “poetic-intellectual” experience for both the arts and philosophy in which such “world space” is created that even the ordinary appears extraordinary. (shrink)

The debate concerning the relations between matter and motion has the same age as philosophy itself. In modern times this problem was transformed into the one concerning the relations between mass and energy. Newton identified mass with matter. Classical thermodynamics brought this conception to its logical conclusion, establishing an ontic dichotomy between mass-matter and energy. On the basis of this pre-relativistic conception, Einstein's famous equation has been interpreted as a relation of equivalence between mass-matter and energy. Nevertheless, if we reject (...) this epistemologically illegitimate identification, it is possible to elaborate a unitary conception of matter, which at the same time is an argument for the unity between matter and motion. In particular, the classical antithesis between matter and field becomes obsolete in the frame of the proposed interpretation. (shrink)

This paper reconsiders the debates around the interpretation of Parmenides’ Being, in order to draw out the preconceptions that lie behind such debates and to scrutinize the legitimacy of applying them to a text such as Parmenides’ poem. With a focus on the assumptions that have driven scholars to seek clarity within the notoriously ambiguous verse of the poem, I ask whether it is possible to develop an analysis of Parmenides’ Being that is sympathetic both to his clear interest in (...) argument, logic, knowledge and truth and to his ambiguous expression and cultural and literary resonances. (shrink)

This study focuses on the origin of life as presented in the thought of Anaximander of Miletus but also points to some parallel motifs found in much later conceptions of both the pre-Darwinian German romantic science and post-Darwinian biology. According to Anaximander, life originated in the moisture associated with earth (mud). This moist environment hosted the first living creatures that later populated the dry land. In these descriptions, one can trace the earliest hints of the notion of environmental adaptation. The (...) origin of humans was seen as connected in some way with fish: ancient humans were supposed to have developed inside fish-like animals. Anaximander took into account changes in the development of living creatures (adaptations) and speculated on the origins of humans. Similar ideas are found also in the writings of much later, eighteenth and nineteenth century authors who were close to the tradition of German romantic science. We do not argue that these later concepts are in any way directly linked with those of the pre-Socratics, but they show surprising parallels in, e.g., the hypothesis that life originated in a moist environment or the supposition that human developed from fish-like ancestors. These transformations are seen as a consequence of timeless logic rather than as evolution in historical terms. Despite the accent on the origin of living things, both Anaximander and the later Naturphilosophen lack in their notions the element most characteristic of Darwin’s thought, that is, the emphasis on historicity and uniqueness of all that comes into being. (shrink)

‘Water is H2O’ is one of the most frequently cited sentences in analytic philosophy, thanks to the seminal work of Saul Kripke and Hilary Putnam in the 1970s on the semantics of natural kind terms. Both of these philosophers owe an intellectual debt to the empiricist metaphysics of John Locke's Essay Concerning Human Understanding, while disagreeing profoundly with Locke about the reality of natural kinds. Locke employs an intriguing example involving water to support his view that kinds (or ‘species’), such (...) as water and gold, are the workmanship of the human mind. This is the point of his story about a winter visitor to England from Jamaica, who is astonished to find that the water in his basin has turned solid overnight, and proceeds to call it ‘hardened water’. Locke criticizes this judgement, maintaining that it is more consonant with common sense to regard water and ice as different kinds of substance. Putnam, by implication, disagrees. Deploying his imaginary example of Twin Earth—a distant planet where a watery-looking substance, XYZ, rather than H2O, fills the oceans and rivers—he maintains that common sense supports the judgement that XYZ and H2O, despite their superficial similarity, are not the same kind of substance, precisely because their molecular compositions are different. Here it will be argued that both views are mistaken, but that, in this dispute, Locke has more right on his side than his modern opponents do. (shrink)

The Red Queen hypothesis, or the ability organisms have to control and regulate the available trophic energy, is a recently proposed parameter for measuring fitness. Firstly, this hypothesis is analysed in terms of its heuristic power. Secondly, the claimed causal dependence between this parameter and a, still controversial, law of constant extinction is judged to be unjustified, however reasonable such a claim appears to be. Finally, the ubiquity of competition in nature which is seemingly required by the Red Queen and (...) supposedly realized at the expense of a mutualistic alternative, is deemed to be a questionable assumption. (shrink)