In biology the idea of matter as something passive has been abandoned in favour of the idea that matter has the capacity of self-activity. In modern physics too matter functions more as an agent, with which the experimenter has a relation, than as passive material which he can handle as he likes. So in both fields of study the antithesis between idealism and materialism has been given up, so that the relation instead of the difference between man and nature became (...) the starting point of scientific inquiry. (shrink)

Given its centrality to the intellectual thought processes through which the great structures of logic, nature, and spirit are unfolded it is clear that mediation is vital to the very possibility of Hegel’s encyclopaedic philosophy. Yet Hegel gives little specific explanation of the concept of mediation. Surprisingly, it has been the subject of even less attention by scholars of Hegel. Nevertheless it is casually used in discussions of Hegel and post- Hegelian philosophy as though its meaning were simple and (...) straightforward. In these discussions mediation is the thesis that meanings are not atomic in that the independence of something is inseparable from its relation to something else. Hence being is mediated by nothing, the particular by the universal, the individual by society. But does Hegel ever explain mediation in a way which justifies such use of the concept? The same easy employment of mediation is found in Theodor Adorno whose works are replete with the use of this concept and, indeed, acknowledgements of its Hegelian origin. But the concept of mediation in Adorno’s negative dialectic is operative in an entirely different context from that of Hegel. How, it might be asked, can a concept be so adaptable? I want to argue that mediation is, in fact, an equivocal term which in both Hegel and Adorno covers a variety of entirely different conceptual relations. Furthermore, as propounded by both Hegel and Adorno it lacks the rigour which could allow the particular conclusions which the concept allegedly facilitates. (shrink)

This chapter contains sections titled: Criteria Used for the Concept of the Universal Some Conceptual Barriers to Early Grasp of the Universal Empedocles: Formulae for Compounds; Biological Forms; Type‐Identities across Cycles Philolaus: Genus, Species, and the Relation to Particulars Democritus: An Infinity of Atomic Types, Atomic Tokens Comments by Democritus on the Universal Democritus and Aristotle: Origins of the Type–Token Distinction Democritus and Plato Bibliography.

Contemporary philosophy of health has been quite focused on the problem of determining the nature of the concepts of health, illness and disease from a scientific point of view. Some theorists claim and argue that these concepts are value-free and descriptive in the same sense as the concepts of atom, metal and rain are value-free and descriptive. To say that a person has a certain disease or that he or she is unhealthy is thus to objectively describe this person. (...) On the other hand it certainly does not preclude an additional evaluation of the state of affairs as undesirable or bad. The basic scientific description and the evaluation are, however, two independent matters, according to this kind of theory. Other philosophers claim that the concept of health, together with the other medical concepts, is essentially value-laden. To establish that a person is healthy does not just entail some objective inspection and measurement. It presupposes also an evaluation of the general state of the person. A statement that he or she is healthy does not merely imply certain scientific facts regarding the person’s body or mind but implies also a (positive) evaluation of the person’s bodily and mental state. My task in this paper will be, first, to present the two principal rival types of theories and present what I take to be the main kind of reasoning by which we could assess these theories, and second, to present a deeper characterization of the principal rival theories of health and illness. (shrink)

By an “organism” I mean a living thing, in the most ordinary sense. There is an “organic theory of nature” in which the term “organism” is extended so as to include atoms, molecules, crystals, colloidal micelles, etc.; such constellations of parts have been called “inorganic organisms” by Driesch. I shall regard them as the “results of organization.” As we know them they are “models” , and they exist in the minds of physicists just as differential equations are in the minds (...) of mathematicians. They express arrangements just as a trade union is an arrangement, and just as artifacts, such as the nest of a chaffinch or the sleeping-bag of an Arctic explorer, are expressions of arrangements. (shrink)

The concept of matter is the cornerstone of philosophical materialism. In each of the nations and cultures of the world it has undergone a long historical process of change and development. To study these concepts of matter from a comparative perspective will undoubtedly help to clarify the general laws governing human philosophical thinking and their various characteristics in the many cultural traditions of the peoples of the world.

Periodic tables (PTs) are the ‘ultimate paper tools’ of general and inorganic chemistry. There are three fields of open questions concerning the relation between PTs and physics: (i) the relation between the chemical facts and the concept of a periodic system (PS) of chemical elements (CEs) as represented by PTs; (ii) the internal structure of the PS; (iii)␣The relation between the PS and atomistic quantum chemistry. The main open questions refer to (i). The fuzziness of the concepts of chemical (...) properties and of chemical similarities of the CE and their compounds guarantees the autonomy of chemistry. We distinguish between CEs, Elemental Stuffs and Elemental Atoms. We comment on the basic properties of the basic elements. Concerning (ii), two sharp physical numbers (nuclear charge and number of valence electrons) and two coarse fuzzy ranges (ranges of energies and of spatial extensions of the atomic orbitals, AOs) characterize the atoms of the CEs and determine the two-dimensional structure of the PS. Concerning (iii), some relevant ‘facts’ about and from quantum chemistry are reviewed and compared with common ‘textbook facts’. What counts in chemistry is the whole set of nondiffuse orbitals in low-energy average configurations of chemically bonded atoms. Decisive for the periodicity are the energy gaps between the core and valence shells. Diffuse Rydberg orbitals and minute spin–orbit splittings are important in spectroscopy and for philosophers, but less so in chemical science and for the PS. (shrink)

본고는 근세 일본에서의 氣的 세계상과 서구 전래의 원자론적 세계상 사이의 충돌을 살펴본 것이다. 시즈키 타다오(志筑忠雄)는 뉴턴의 천체 물리학을 일본에 최초로 소개한 인물로 알려져 있다. 그는 영국인 존 케일이 쓴 뉴턴의 천체 물리학에 관한 저서의 네덜란드어판을 『奇兒全書』라는 이름으로 번역했다. 이 『奇兒全書』에 소개된 지동설과 뉴턴 역학 등은 당시의 일본인들에게 신선한 충격을 가져다주었지만, 동시에 물질론의 측면에서도 전통 동아시아의 세계상과 매우 이질적인 부분을 내포했다. 즉, 전통 동아시아인들은 세계가 氣로 이루어져 있다고 보았다면, 뉴턴은 세계가 더 이상 분할할 수 없는 입자와 진공으로 이루어져 있다고 생각했다. 뉴턴의 (...) 물질론을 일본에 소개했던 시즈키는 이 두 대립적인 세계상을 어떻게 조화시킬 것인가의 문제를 껴안고 있었다. 『求力法論』에서 시즈키는 뉴턴적 물질론의 기본 개념이었던 최소입자와 진공을 전통적 氣의 언어로 재해석했다. 시즈키는 氣가 모여 이룬 質이 최소입자인 屬子에 해당하고, 뉴턴이 가정했던 진공에도 사실상 薄氣가 가득 차 있다고 보았다. 즉, 氣의 희박함과 농밀함의 차이로 屬子와 진공이라는 뉴턴적 물질론의 핵심 개념들을 재해석한 것이다. 아울러 입자 간에 끌어당기는 힘을 의미했던 求力은 氣가 일으키는 힘으로 간주했다. 『求力法論』으로부터 약 14년 뒤에 완성된 『曆象新書』에서 시즈키는 더 과감한 氣의 세계상을 전개했다. 그는 뉴턴적 물질론을 해석하는데 사용했던 氣의 사상을 천체 역학에까지 확대 적용했을 뿐만 아니라, 동아시아에서 일찍이 설명된 적이 없었던 氣와 質 사이의 관계도 彈力과 引力이라는 뉴턴 역학적 개념을 도입하여 해석했다. 본고를 통해 우리는 氣的 세계상과 원자론적 세계상이라는 두 개의 이질적인 세계상이 시즈키의 사상 속에서 어떠한 방식으로 통합되었는지 확인할 수 있을 것이다. (shrink)

The paper attempts to schematize, in the form of abductive inferences, the major changes in the developing picture of the atom during the modem period of scientific investigation. The aim of this presentation is to enable students in logic or the philosophy of science to see how a sustained application of abduction might be seen as operative in the development of changing conceptions of the atom, a development which may well be seen as a scientific revolution. The sustained (...) example also illustrates, in pedagogic fashion, the role of images in abduction, the theory-observation distinction, and the analytic-synthetic distinction. (shrink)

For over a century the definitions of mass and derivations of its relation with energy continue to be elaborated, demonstrating that the concept of mass is still not satisfactorily understood. The aim of this study is to show that, starting from the properties of Minkowski spacetime and from the principle of least action, energy expresses the property of inertia of a body. This implies that inertial mass can only be the object of a definition—the so called mass-energy relation—aimed at (...) measuring energy in different units, more suitable to describe the huge amount of it enclosed in what we call the “rest-energy” of a body. Likewise, the concept of gravitational mass becomes unnecessary, being replaceable by energy, thus making the weak equivalence principle intrinsically verified. In dealing with mass, a new unit of measurement is foretold for it, which relies on the de Broglie frequency of atoms, the value of which can today be measured with an accuracy of a few parts in 109. (shrink)

The amount of content, both on and offline, to which people in reasonably affluent nations have access has increased to the point that it has raised concerns that we are now suffering from a harmful condition of ‹information overload.’ Although the phrase is being used more frequently, the concept is not yet well understood – beyond expressing the rather basic idea of having access to more information than is good for us. This essay attempts to provide a philosophical explication (...) of the concept of information overload and is therefore what philosophers call ‹conceptual analysis’ – a task that, along with normative ethical analysis, is distinctive to Anglo-American style analytic philosophy. I will begin with an analysis of the atomic concepts expressed by the terms ‹information’ and ‹overload’ and then attempt to give a philosophical explanation of the concept of information overload that more precisely identifies exactly what the condition amounts to. (shrink)

What chemists take as molecular structure is a theoretical construct based on the concepts of chemical bond, atoms in molecules, etc. and hence it should be distinguished from tangible structures around us. The practical adequacy of it has been demonstrated by the established method of retro-synthetic analysis, for instance. But it is not derived a priori from quantum mechanical treatments of the molecule and criticized for being irrelevant to the reality of the molecule. There is persistent skepticism about it. The (...) present study aims to overcome this skepticism by having recourse to the concepts of affordance and phenomenal field. The basic idea of our approach is suggested by the following statement of Niels Bohr: ‘evidence obtained under different experimental conditions cannot be comprehended within a single picture but must be regarded as complementary in the sense that only the totality of the phenomena exhausts the possible information about the objects’. This implies that we should take account of a context in which the cognition of a fact arises when we think about human activities including science. This can be realized by invoking affordances of a complex such as {agent, devices, methods, substances, surroundings}. That is to say, affordances are context-relative dispositional attributes of {agent-material world} complexes as is asserted by Harré and Llored. The phenomenal field is a conceptual device which schematizes the contextual aspect of affordance and, more importantly, serves as a link between the concept of affordance and Kant’s theory of knowledge, by which alone affordances are realized as the dispositional properties of {agent-material world} complexes. Because affordances become actualized in various phenomenal fields, affordances of one and the same object may well be distinct from one another. In conclusion we can take that molecular structure is the affordance of a complex that includes a chemist who is engaged in organic synthesis, whereas a quantum mechanical picture of the molecule may be one of the possible affordances of a complex that includes a quantum chemist who cares about electronic states of the molecule. (shrink)

The main thrust of the paper involves a theoretical and philosophical analysis of the claim made in September 1999 that atomic orbitals have been directly imaged for the first time. After a brief account of the recent claims the paper reviews the development of the orbit and later orbital concepts and analyzes the theoretical status of atomic orbitals. The conclusion is that contrary to these claims, atomic orbitals have not in fact been observed. The non-referring nature of modern atomic orbitals (...) is discussed in the context of Laudan's writings on realism, the success of theories, and whether or not scientific terms refer. I conclude that the failure to observe orbitals is a good prima facie case for divorcing the success of theories from the question of whether their central terms refer. The added relevance of this case is that it concerns a current and highly successful theory. Finally, the relevance of this 'floating model' to contemporary discussions on scientific models is briefly considered. (shrink)

A novel non-classical mereological concept built up by blending the Metaphysics of Xavier Zubiri and the Quantum Theory of Atoms in Molecules of R. F. W. Bader is proposed. It is argued that this philosophical concept is necessary to properly account for what happens in a chemical reaction. From the topology of the gradient of the laplacian of the electronic charge density, \\) within the QTAIM framework, different “atomic graphs” are found for each atom depending on the (...) molecular context, reflecting how the whole molecule affects each atom. In this way, the whole molecular system imposes certain geometry onto each atom, and every atom exhibits different ontological modality. On the Metaphysical side, for X. Zubiri real things are system of different notes. The physical essence is the subsystem of essential notes with a coherence unity. Every note is grounded on the essence. The unity of the system is present somehow in every note-of beforehand, and every essential note-of turns towards the other. The essence determines the position of each note within the system, and hence is the grounding for modality of the notes. By conflating both “theories” and taking the atoms as essential notes, we propose the concept of “Molecule in atoms-of” or “atoms-of in Molecules”. Within the course of a chemical reaction the atoms-of modified their “of” as required by the new molecular unity being formed, and eventually change their modality. The validity to the Zubiri’s statements, is attained by evaluating necessity and possibility in a set-up of finite accessible “possible worlds”. (shrink)

Western civilization was built on the concept of God. Today modern science, based on the critical method and so-called objective facts, denies even the existence of our soul. There is only matter: atoms, molecules, and DNA sequences. There is no freedom; there are no well-grounded beliefs. The decline of Western civilization is not the simple consequence of decadence, hedonism, and malevolence. Modern critical science has liberated us from the old dogmas but failed to establish our freedoms, values, and beliefs. (...) However, human knowledge is not objective but personal. We are the children of evolution. Everybody sees the world from his own personal point of view anchored into his/her body. We use our billions-of-years-old evolutionary skills and thousands-of-years-old cultural heritage to recognize and acknowledge the personal facts of our reality, freedom, and most important natural beliefs: respect and speak the truth. In reality, even science itself is based on our personal knowledge. Only our false conceptual dichotomies paralyze our thinking. God or matter?—there is a third choice: the emergence of life and human persons. This is the only way to defend our freedoms and the Christian moral dynamism of free Western societies. (shrink)

The problem of the reduction of chemistry to physics has been traditionally addressed in terms of classical structural chemistry and standard quantum mechanics. In this work, we will study the problem from the perspective of the Quantum Theory of Atoms in Molecules, proposed by Richard Bader in the nineties. The purpose of this article is to unveil the role of QTAIM in the inter-theoretical relations between chemistry and physics. We argue that, although the QTAIM solves two relevant obstacles to reduction (...) by providing a rigorous definition of chemical bond and of atoms in a molecule, it appeals to concepts that are unacceptable in the quantum–mechanical context. Therefore, the QTAIM fails to provide the desired reduction. On the other hand, we will show that the QTAIM is more similar to Bohmian mechanics and that the basic elements of both theories are closely related. (shrink)

By moving away from the traditional reductionist reading of the quantum theory of atoms in molecules, in this paper we analyze the role played by QTAIM in the relationship between molecular chemistry and quantum mechanics from an emergentist perspective. In particular, we show that such a relationship involves two steps: an intra-domain emergence and an inter-domain emergence. Intra-domain emergence, internal to quantum mechanics, results from the fact that the electron density, from which all the other QTAIM’s concepts are defined, arises (...) from the wavefunction as a coarse-grained magnitude. Inter-domain emergence involves an analogical link, a mapping, between QTAIM’s entities, such as topological atoms and bond paths, and the entities that populate the molecular-chemistry domain, such as chemical atoms and chemical bonds. (shrink)

The concept of molecular structure is fundamental to the practice and understanding of chemistry, but the meaning of this term has evolved and is still evolving. The Born–Oppenheimer separation of electronic and nuclear motions lies at the heart of most modern quantum chemical models of molecular structure. While this separation introduces a great computational and practical simplification, it is neither essential to the conceptual formulation of molecular structure nor universally valid. Going beyond the Born–Oppenheimer approximation introduces new paradigms, bringing (...) fresh insight into the chemistry of fluxional molecules, proteins, superconductors and macroscopic dielectrics, thus opening up new avenues for exploration. But it requires that our ideas of molecular structure need to evolve beyond simple ball-and-stick-type models. (shrink)

The contents of this book were originally delivered at Trinity College in the autumn of 1919 as the inaugural course of Tarner lectures.

THE CONCEPTS OF ASYMMETRY and optical activity, although introduced fairly late into inorganic chemistry, have played venerable and central roles in organic chemistry. Modern organic chemistry is usually considered to commence with Friedrich Wohler's synthesis of urea in 1828, and Jean Baptiste Biot's discovery of optical activity in 1812 antedates the very genesis of this field. Moreover, Joseph Achille Le Bel and Jacobus Henricusvan't Hoff's concept of the tetrahedral carbon atom, which constitutes the foundation of stereochemistry, was proposed (...) a century ago (1874), primarily in order to explain the optical isomerism investigated by Louis Pasteur and others. It is to Alfred Werner, the founder of coordination chemistry, however, that we owe the introduction of the concept of optical activity into coordination chemistry, together with its experimental proof. ' The purpose of this paper is to examine and speculate upon the circumstances of Werner's discovery of optically active coordination compounds, to trace its antecedents in earlier work, and to assess its impact upon the future course of inorganic stereochemistry. (shrink)

Traditional correspondence theory of truth with the concept of fact encounters many serious difficulties, main one of which is that it is too difficult to explain clearly the concept of ‘fact’ and how propositions ‘correspond’ to facts. This does not mean that we should abandon the traditional correspondence theory of truth and turn to some other type theories of truth. In order to guarantee the objectivity of truth, any reasonable theory of truth must adhere to the core insight (...) of the traditional correspondence theory: it is not something in our language, nor in our mind, but something in the external world, that make the propositions we use to describe the states of affairs in the world either true or false. It is entirely possible to formulate a new correspondence theory of truth without the concept of fact but still adhering to the core insights mentioned above of the traditional correspondence theory. New correspondence theory of truth has its own metaphysical and epistemological assumptions, and also its assumption in the philosophy of language. Because of the generativity of language, in defining the concept of truth, the new correspondence theory of truth must resort to Tarskian recursive procedure. First, it gives the semantic value of the components of a proposition, defines the truth of its atomic propositions, then gradually defines the truth of its more and more complex propositions and finally of the whole proposition. Coherence is the intrinsic element of truth. The concept of truth is by no means trivial and insignificant; on the contrary, it is very substantive. The pursuit of truth is our mission. (shrink)

This paper explores the mereology of structural universals, using the structural richness of a non-classical mereology without unique fusions. The paper focuses on a problem posed by David Lewis, who using the example of methane, and assuming classical mereology, argues against any purely mereological theory of structural universals. The problem is that being a methane molecule would have to contain being a hydrogen atom four times over, but mereology does not have the concept of the same part occurring (...) several times. This paper takes up the challenge by providing mereological analysis of three operations sufficient for a theory of structural universals: Reflexive binding, i.e. identifying two of the places of a universal; Existential binding, i.e. the language-independent correlate of an existential quantification; and Conjunction. (shrink)

In order to demonstrate the great importance of Philosophy in the elaboration of current scientific theories, a parallel was drawn between concepts of pre-Socratic Philosophy and current modern theories. Thus, throughout this essay, the convergences between some elaborations developed by philosophers and their reinterpretation from a scientific point of view, supported by the scientific method and the present technological apparatuses, were exposed. In this sense, having as its core the reflection about the atomic theory of Leucippus and Democritus, we investigate (...) the way in which atomism dialogues with the modern Atomic Theory to the Quantum Theory, through concepts of Kosmos and Cosmology. In a second moment, origin of life theories were revisited from the pre-Socratic concepts of Psykhe. Finally, Philosophy and Science are brought together as possible and complementary tools for the restoration of the amplification of thought and investigative processes. (shrink)

The covalent bond, a difficult concept to define precisely, plays a central role in chemical predictions, interventions, and explanations. I investigate the structural conception of the covalent bond, which says that bonding is a directional, submolecular region of electron density, located between individual atomic centers and responsible for holding the atoms together. Several approaches to constructing molecular models are considered in order to determine which features of the structural conception of bonding, if any, are robust across these models. Key (...) components of the structural conception are absent in all but the simplest quantum mechanical models of molecular structure, seriously challenging the conception’s viability. †To contact the author, please write to: Department of Philosophy, University of Pennsylvania, 433 Cohen Hall, Philadelphia, PA 19104‐6304; e‐mail: [email protected]. (shrink)

Max Planck introduced the concept of zero-point energy in spring 1911. In the early struggles to establish the concept of the energy-quantum, it provided a helpful heuristic principle, to guide as well as supplement the efforts of some leading physicists in understanding the laws that applied in the atomic domain. The history and growth of this concept, and its application in the general development of quantum theory during the past many decades are studied under three principal headings: (...) (1) The Birth of the Concept of zero-Point Energy; (2) Does Zero-Point Energy Really Exist? and (3) The Ground State of Quantum Systems. (shrink)

The bulk of Duhem's writing which bears on the understanding of mixtures suggests he adopted an Aristotelian position which he opposed only to the atomic view. A third view from antiquity-that of the Stoics-seems not to be taken into account. But his lines of thought are not always as explicit as could be wished. The Stoic view is considered here from a perspective which Duhem might well have adopted. This provides a background against which his somewhat unorthodox Aristotelianism might be (...) understood. (shrink)

The concept of hierarchical organization is commonplace in science. Subatomic particles compose atoms, which compose molecules; cells compose tissues, which compose organs, which compose organisms; etc. Hierarchical organization is particularly prominent in ecology, a field of research explicitly arranged around levels of ecological organization. The concept of levels of organization is also central to a variety of debates in philosophy of science. Yet many difficulties plague the concept of discrete hierarchical levels. In this paper, we show how (...) these difficulties undermine various implications ascribed to hierarchical organization, and we suggest the concept of scale as a promising alternative to levels. Investigating causal processes at different scales offers a way to retain a notion of quasi-levels that avoids the difficulties inherent in the classic concept of hierarchical levels of organization. Throughout, our focus is on ecology, but the results generalize to other invocations of hierarchy in science and philosophy of science. (shrink)

Many contributors of the debate about knowledge by testimony concentrate on the problem of justification. In my paper I will stress a different point – the concept of testimony itself. As a starting point I will use the definitional proposal of Jennifer Lackey. She holds that the concept of testimony should be regarded as entailing two aspects – one corresponding to the speaker, the other one to the hearer. I will adopt the assumption that we need to deal (...) with both aspects. Nevertheless, I will show that her concept – which suggests regarding testimony as an act of communication conveying information – is too broad and, therefore, I will end up with a different twofold definition. (shrink)

Elzenberg opposes the rightness of violence. This is a horizon on which appears a space for freedom in its two dimensions, which contemporarily is defined as negative and positive. Elzenberg’s negative freedom—necessary and essential—is freedom from one’s own biologicality but also from violence, whilst positive freedom—desired and valuable—the freedom to pursue values, is conditioned by the first.Man can be enslaved by his own body, the force applied by political authority or by ideology. He will not pursue truth then. He can (...) do this only by freeing himself through satisfying his elementary needs and by way of asceticism from biological determinism, ignoring the sphere of political pressure, and reaching the truth in order to contemplate and realize beauty and good. Freedom is opposed on the one hand by biology and on the other, by violence. Force therefore, even when it is used in the name of truth, opposes the very principle in whose defense it has been enlisted. (shrink)

The chapter begins by contrasting two approaches to the analysis of hope, one which takes its departure from a view broadly shared by Hobbes, Locke and Hume, another which fits better with Aquinas's definition of hope. The former relies heavily on a sharp distinction between the cognitive and conative aspects of hope. It is argued that while this approach provides a valuable source of insights, its focus is too narrow and it rests on a problematic rationalist psychology. The chapter then (...) discusses the phenomenology of hope with particular reference to the contrast between the lived experience of expectation and anticipation. This leads to a discussion of the value of hope. My thesis here is that when philosophers reflect on hope, they bring along background, tacit assumptions regarding its worth, which I attempt to make explicit. Finally the chapter identifies a second kind of philosophical reflection on hope, which is concerned not so much with the logic or value of hope as with hope understood as a 'principle.'. (shrink)

Contemporary philosophy of health and disease has been quite focused on the problem of determining the nature of the concepts of health and disease from a scientific point of view. Some theorists claim and argue that these concepts are value-free and descriptive in the same sense as the concepts of atoms, metal, and rain are value-free and descriptive. According to this descriptive or naturalist line of thought, the notions of health and disease are furthermore related to the idea of a (...) normal or natural function. A bodily organ is healthy insofar as it functions normally, and it is diseased when it does not fulfill its functions. Other philosophers claim that the concept of health, together with other medical concepts, is essentially value-laden. To establish that a person is healthy does not just entail some objective inspection and measurement. It presupposes also an evaluation of the general state of the person. My purpose in this article is to scrutinize the relation between the notion of a natural function, on the one hand, and the concepts of health and disease on the other. In characterizing the notion of a normal function I will follow the classic analysis put forward by American philosopher Christopher Boorse. I will criticize Boorse’s proposal mainly by using arguments from the analysis of ordinary lay and medical language. I ask questions such as: what do we normally mean when we ascribe health or disease to a person? In the end I will recommend an analysis of these and related medical notions, which is unrelated to the notion of a natural function as normally interpreted. (shrink)

Originally published 1965. This reprints the 1977 edition which included a new introduction. From the starting point of "popular" charity education, the book traces the dynamic of ideological and social change from the 1790s to the 1830s in terms of attitudes to education and analyzes the range of contemporary opinions on popular education. It also examines some of the channels through which ideas about education were disseminated and became common currency in popular movements.

A study of the history of the atomic theory of matter between the time of Democritus and that of Newton. The classical atomic theory, we are told, consisted of four central doctrines: a firm commitment to indivisible units of matter; a belief in the reality of the vacuum; a reductionist conception of forms and qualities and a mechanistic account of natural agency. The work provides a critical account of the arguments used for and against these four theses during three time-periods: (...) Antiquity, the Middle Ages and the 17th century. Atomism was a minority position in Antiquity, rejected by most natural philosophers on the strength of Aristotelian objections. But Aristotle's own disciples gradually took his system apart in the Middle Ages, thus developing - albeit in a piecemeal manner - positions strikingly akin in some respects to classical atomism. So when Gassendi and others sought to revive atomism in the 17th century, the way was already prepared for them. This study is the first to emphasise the continuity of this process and the debt owed by the 17th-century moderns to the medieval critique of Aristotle. (shrink)

Are past, present and future objective features of reality? What is an instant of time? Could time pass if nothing changed? In this book, the author attempts to show how considerations in the philosophy of logic and language are needed to settle these and other well-known issues. Part I deals with the debate over whether time is 'tensed' or 'tenseless'. Various problems are spelt out for the 'tenseless' view, and it is argued that the issue ends up hinging upon whether (...) a genuinely tenseless language is conceivable. Part II has to do with periods and instants. The semantics of dates and of duration-terms are examined, and the notion of a durationless instant attacked. In Part III, the connections between time, change and causation are discussed. A criterial approach to the meanings of certain key temporal terms is adopted, yielding answers to a number of traditional metaphysical issues about time. (shrink)

Making a history of the principle of inertia, as of any other principle or concept, is a complex but still possible operation. In this work it has been chosen to make a back story which seemed the most natural way for a reconstruction. On the way back, it has been decided to stop at the 6th century CE with the contribution of Ioannes Philoponus. The principle he stated, although very different from the modern one, is certainly associated with it. (...) Going back in time it is still possible and of course one could proceed to the origins of the homo sapiens who perhaps posed the problem of why a club thrown with his hand could go so far from him. But the similarities that one can find with the modern principle are very vague, too perhaps. Without going so far one could see an embryonic idea of the principle of inertia in the atomistic theory of Democritus in the 5th century BCE. The motion of atoms whirling with no apparent reason can suggest the idea that a body can also move with no reason. But the transition from the atom, a metaphysical being, to the body, an empirical being, is far from immediate. (shrink)

This essay discusses criminal law theories in late Imperial Russia. It argues that, although the political climate of Reform and Counter Reform effectively undermined attempts to implement new legislation premised on the idea of the 'rights-enabled person', paradoxically, it fostered the growth of juridical scholarship. Russian criminal law theorists engaged critically with Western juridical science, which, beginning in the 1870s, witnessed a shift away from absolutist theories inspired by the classics of philosophical idealism towards various strains of positivism arguing for (...) the restoration of the person as a concrete, physiological being. However, while Russian scholars were drawn to these new trends of criminal anthropology and the sociology of crime, they were also obliged to take stock of an indigenous legal culture that scarcely differentiated between pravo and zakon, together with a long tradition of customary practices that equated crime and punishment with sin and redemption. (shrink)

J. H. van 't Hoff's 1874 Dutch pamphlet, in which he proposed the spatial arrangement of atoms in a molecule, is one of the most significant documents in the history of chemistry. This essay presents a new narrative of Van 't Hoff's early life and places the appearance of the pamphlet within the context of the 'second golden age' of Dutch science. We argue that the combination of the reformed educational system in The Netherlands, the emergence of graphical molecular modelling (...) within the theoretical and practical culture of chemistry during the 1860s and 1870s, as well as Van 't Hoff's own personal research trajectory, formed the background to his unprecedented attribution of spatial meaning to the traditional concept of atomic 'arrangement'. We also present a new English translation of the pamphlet, for we have found that the existing translation, published by G. M. Richardson in 1901, contains many errors, changes and omissions. The new version offers a more accurate rendition in English of Van 't Hoff's style and argument. (shrink)

While Montesquieu (1689–1755) is often regarded as the thinker who discovered the importance of fundamental principles such as the rule of law and the separation of powers, systematic research of his theory of the state is surprisingly limited. In this article, I argue that his masterpiece, The Spirit of the Laws (1748), points to a theory of the non-arbitrary state. Montesquieu’s comparative study of various governments demonstrates that modern liberty depends on the rule of law. Since many states have laws (...) but few of them guarantee liberty, he stressed that the rule of law requires the separation of the judicial from the legislative and executive powers. The constitution of an independent judicial branch separates the sphere of justice from the political sphere, which creates the basic structure of the non-arbitrary state. Depending on the distribution of power in either of the two spheres, non-arbitrary states can guarantee their citizens more or less liberty. The concept of the non-arbitrary state thus illuminates Montesquieu’s significance for the variety of political projects that emerged in the age of revolutions. (shrink)

This article examines some of the main tenets of competition theory in light of the theory of evolution and the concept of an ecological niche. The principle of competitive exclusion and the related assumption that communities exist at competitive equilibrium - fundamental parts of many competition theories and models - may be violated if non-equilibrium conditions exist in natural communities or are incorporated into competition models. Furthermore, these two basic tenets of competition theory are not compatible with the theory (...) of evolution. Variation in ecologically significant environmental factors and non-equilibrium in population numbers should occur in most natural communities, and such changes have important effects on community relations, niche overlap, and the evolution of ecosystems. Ecologists should view competition as a process occurring within a complexdynamic system, and should be wary of theoretical positions built upon simple laboratory experiments or simplistic mathematical models.In considering the relationship between niche overlap and competition, niche overlap should not be taken as a sufficient condition for competition; many factors may prevent or diminish competition between populations with similar resource utilization patterns. The typically opposing forces of intraspecific and interspecific competition need to be simultaneously considered, for it is the balance between them that in large part determines niche boundaries. (shrink)

: The concept of the person has come to be intimately connected with questions about the value of life. It is applied to those sorts of beings who have some special value or moral importance and where we need to prioritize the needs or claims of different sorts of individuals. "Person" is a concept designating individuals like us in some important respects, but possibly including individuals who are very unlike us in other respects. What are these respects and (...) why are they important? This paper sets out to answer these questions and to develop a coherent and useful concept of the person. (shrink)

This slight volume contains three short essays by the author: “The Idea of Nature In Contemporary Physics”, “Atomic Physics and Causal Law”, and “Classical Education”. Much more than half of the book is given over to a selection of brief readings from Kepler, Galileo, Newton, Huygens, D’Alembert, De la Mettrie, Ostwald, Hertz, and a short historical review by de Broglie of the evolution of quantum mechanics. These readings are meant to illustrate the author’s overall theme which appears to be this: (...) the development of modern science has been marked by a progressive change in the concept of nature. The mediaevals regarded Nature as God’s handiwork: “it would have been thought senseless to ask questions about the material world without reference to God”, Between Galileo and Newton a quite new outlook arose which encouraged the belief that an accurate and exhaustive account of Nature could be made in mathematical terms which made reference only to matter and motion. This was the mechanist view of Nature, which led logically to materialism. But modern physics has shown the inadequacy of this view. “The object of research is no longer nature itself, but man’s investigation of nature”. “Nature itself cannot be known”, only “man’s relationship with nature”. The uncertainty principle proves that an “objective” picture of Nature is impossible. The observer and the observed system cannot be clearly separated, and thus we must give up the “Cartesian” distinction between a world of “objective processes in space and time and a mind in which these processes are mirrored”. Thus, we no longer regard “nature” as God’s handiwork nor as an objective space-time-matter manifold but either as the “footprint of man” upon an unknowable substratum, or else as “the transparent clarity of a mathematics that no longer describes the behaviour of elementary particles but only our knowledge of this behaviour”. There is no “philosophy of nature” properly speaking; our knowledge of “nature”, such as it is, is derived from a philosophical consideration of science. (shrink)