In this article I assess the problems and prospects of a microstructural approach to chemical substances. Saul Kripke and Hilary Putnam famously claimed that to be gold is to have atomic number 79 and to be water is to be H2O. I relate the first claim to the concept of element in the history of chemistry, arguing that the reference of element names is determined by atomic number. Compounds are more difficult: water is so complex and heterogeneous at the molecular (...) level that `water is H2O' seems false under some interpretations. I sketch a response to this problem. (shrink)

I am addressing you this evening in a somewhat unfamiliar theme: that of “logical values” or “values in speaking.” I do so since the points I want to raise come up very constantly in contemporary discussion, and yet are seldom made the object of explicit reflection. There are, it is plain, a large number of qualities which appeal to us in our utterances, whether in the setting forth of our notions in words, or in the weaving of such words into (...) sentences. And they may be said to appeal to us in a peculiar manner, and to satisfy a special set of interests in us, which we may group together as the “logical side” of our nature. Thus most people would say that clarity, relevance, coherence, solid significance and simplicity were merits in speaking, and that so also was truthful conformity to the facts of experience, whether in their general outline or their concrete detail. And everyone would admit readily that such excellences “belonged together,” that they were somehow akin, and that they differed profoundly from such virtues in speaking as poetic felicity, practical helpfulness, or moral and religious inspiration. And most people would also be willing to say, with a great deal of obscurity and most puzzling conviction, that the appeal of such qualities wasn't “merely momentary and personal,” but had something “solid” and “universal” about it, that a man would be foolish not to value such qualities, and that he couldn't help valuing them if he only thought of them sufficiently. And we should recommend such qualities to the approval of others with an air of earnestness and authority, setting them on a level, in this respect, with those other excellences that are called “ethical” and “aesthetic.” But while we could back our recommendation in the last two types of case with a great deal of systematic doctrine, built up in centuries of reflection, we should have little to bring forward in the former case, since the excellences that I want to call “logical,” though often acknowledged, have seldom been made the objects of systematic reflection. Perhaps this is due to the fact that the “true” has generally been ranged alongside of the “good” and the “beautiful” as a species of “ultimate value.”. (shrink)

Sir David Ross, Ladies And Gentlemen: I Have chosen as the topic of this inaugural lecture that of “having in mind,” the manner or manners in which things come before us in consciousness, are present to our thoughts, or are in some way “there for us.” Alternatively, I might say that I want to consider whatever may be involved in saying that we can turn our thoughts in this or that direction, that we can let them dwell on this or (...) that actuality or possibility, whether what we thus concern ourselves with be picked out from our present environment, or reached for beyond it. I like this second “active” way of describing my subject-matter much less than my first, impersonal way of speaking, for reasons that I shall try to make plain in the course of this lecture. I wish, in short, to give you a tentative anatomy of our conscious life, and to sketch the fundamental dimensions into which it may be differentiated. This task is important, since the puzzles which concern the presence of objects to our minds are of a peculiarly deep-seated and refractory sort: they are also puzzles which infect our treatment of practically all other philosophical questions. It is not that certain arbitrarily chosen ways of speaking confuse us, which could be readily bettered by keeping our eyes on the facts: it is rather as if our subject-matter itself confused us, and tempted us to describe it in ways which only serve to deepen mystery and perplexity, and which ultimately plunge us into nonsense. (shrink)

In this article I assess the problems and prospects of a microstructural approach to chemical substances. Saul Kripke and Hilary Putnam famously claimed that to be gold is to have atomic number 79 and to be water is to be H2O. I relate the first claim to the concept of element in the history of chemistry, arguing that the reference of element names is determined by atomic number. Compounds are more difficult: water is so complex and heterogeneous at the molecular (...) level that `water is H2O’ seems false under some interpretations. I sketch a response to this problem. (shrink)

In this article I sketch G. N. Lewis’s views on chemical bonding and Linus Pauling’s attempt to preserve Lewis’s insights within a quantum‐mechanical theory of the bond. I then set out two broad conceptions of the chemical bond, the structural and the energetic views, which differ on the extent in which they preserve anything like the classical chemical bond in the modern quantum‐mechanical understanding of molecular structure. †To contact the author, please write to: Department of Philosophy, Durham University, 50 Old (...) Elvet, Durham DH1 3HN, UK; e‐mail: [email protected]. (shrink)

Lavoisier defined an element as a chemicalsubstance that cannot be decomposed usingcurrent analytical methods. Mendeleev saw anelement as a substance composed of atoms of thesame atomic weight. These `definitions' doquite different things: Lavoisier'sdistinguishes the elements from the compounds,so that the elements may form the basis of acompositional nomenclature; Mendeleev's offersa criterion of sameness and difference forelemental substances, while Lavoisier's doesnot. In this paper I explore the historical andtheoretical background to each proposal.Lavoisier's and Mendeleev's explicitconceptions of elementhood differed from eachother, and (...) from the official IUPAC definitionof `element' of the 1920s. However, Lavoisierand Mendeleev both subscribed to – andemployed – a deeper notion of a chemicalelement as the component of compound substancesthat (i) can survive chemical change, and (ii)explains the chemical behaviour of itscompounds. (shrink)

In this paper I investigate the relationship between vernacular kind terms and specialist scientific vocabularies. Elsewhere I have developed a defence of realism about the chemical elements as natural kinds. This defence depends on identifying the epistemic interests and theoretical conception of the elements that have suffused chemistry since the mid-eighteenth century. Because of this dependence, it is a discipline-specific defence, and would seem to entail important concessions to pluralism about natural kinds. I argue that making this kind of concession (...) does not imply that vernacular kind terms have independent application conditions. Nor does it preclude us saying that chemists, with their particular epistemic interests, have discovered the underlying nature of water, the stuff that is named and thought about in accordance with the practical interests of everyday life. There are limits to pluralism. (shrink)

In this paper I investigate two views of theoretical explanation in quantum chemistry, advocated by John Clarke Slater and Charles Coulson. Slater argued for quantum‐mechanical rigor, and the primacy of fundamental principles in models of chemical bonding. Coulson emphasized systematic explanatory power within chemistry, and continuity with existing chemical explanations. I relate these views to the epistemic contexts of their disciplines.

The first principle of chemical composition is that elements are actually present in their compounds. It is a golden thread running through the history of compositional thinking in chemistry since before the chemical revolution. Opposed to this principle, which I call Actually Present Elements (APE), is the idea that elements are merely potentially present in their compounds: although not actually present, it is possible to recover them. In this paper I follow that golden thread, and then discuss the status of (...) APE itself: is it true? What arguments were there for it, and when? I argue that APE is a metaphysical principle, albeit at a lower level of generality and abstraction than the term ‘metaphysical’ usually suggests. I critically examine a range of different views on how metaphysical principles might be involved in research programmes in empirical science, and conclude by endorsing Elie Zahar’s view that metaphysical principles such as APE are to be found at the very heart of science. Moreover, they can be recipients of empirical support just like other parts of scientific theory. (shrink)

In this article I argue that structure in chemistry is a creature of abstraction: attending selectively to structural similarities, we neglect differences. There are different ways to abstract, so abstraction is interest dependent. So is structure. First, there are two different and mutually irreducible notions of structure in chemistry: bond structure and geometrical structure. Second, structure is relative to scale : the same substance has different structures at different scales, and relationships of structural sameness and difference vary across the scales. (...) However, these facts have no tendency to undermine structure’s claim to reality, or its metaphysical seriousness. (shrink)

In this essay I critically examine the role of entropy of mixing in articulating a macroscopic criterion for the sameness and difference of chemical substances. Consider three cases of mixing in which entropy change occurs: isotopic variants, spin isomers, and populations of atoms in different orthogonal quantum states. Using these cases I argue that entropy of mixing tracks differences between physical states, differences that may or may not correspond to a difference of substance. It does not provide a criterion for (...) the sameness and difference of substance that is appropriate to chemistry. (shrink)

In this paper I defend, against Eric Scerri’s objections, the following theses: that Lavoisier and Mendeleev shared a ‘core conception’ of chemical element, and that this core conception underwrites referential continuity in the names of particular elements.Keywords: Antoine Lavoisier; Dmitri Mendeleev; Chemical elements; Substance; Natural kinds; Reference.

Arthur Fine and André Kukla have argued that realism and instrumentalism are indifferent with respect to scientific practice. I argue that this claim is ambiguous. One interpretation is that for any practice, the fact that that practice yields predictively successful theories is evidentially indifferent between scientific realism and instrumentalism. On the second construal, the claim is that for any practice, adoption of that practice by a scientist is indifferent between their being a realist or instrumentalist. I argue that there are (...) no good arguments for the indifference claim under the second interpretation, and good reasons to think that it is false. (shrink)

Arthur Fine and André Kukla have argued that realism and instrumentalism are indifferent with respect to scientific practice. I argue that this claim is ambiguous. One interpretation is that for any practice, the fact that that practice yields predictively successful theories is evidentially indifferent between scientific realism and instrumentalism. On the second construal, the claim is that for any practice, adoption of that practice by a scientist is indifferent between their being a realist or instrumentalist. I argue that there are (...) no good arguments for the indifference claim under the second interpretation, and good reasons to think that it is false. (shrink)

Professor Lewis and I have some important differences of opinion regarding the identity and distinctness of conscious persons, which it will be well to try to clarify on the present occasion, first of all by enumerating a number of points on which we are, I think, in agreement. Both of us believe in the existence of individual persons, each of whom can be said to live in a ‘world’ of his own intentional objectivity, a world ‘as it is for him’, (...) which differs in a considerable extent, both in content and emphasis, from the world as it is for anyone else. Both of us further believe that all these intentionally objective worlds for a large part coincide in content, and are in fact excerpted from a more comprehensive real world which is common to us all, and which, in addition to in some sense including all such intentionally objective worlds, also includes many real material objects which exist regardless of our intentionality, and which further includes our own material bodies, which appear in so central a manner in each of our intentionally objective worlds. Both of us believe in matter as a transcendent reality, as well as an intentional object, and are content to accept the dicta of science as to the most probable view of its structure. We are in fact quite Cartesian and Lockean in our belief in the primary and secondary qualities of matter. We believe further that our intentional subjectivity is geared causally into our material objectivity, and that the gearing takes place, in some inscrutable manner, in our nervous systems. We both also believe that our intentional subjectivity transcends bodily mechanisms and instrumentalities, and can be liberated from the latter, but that, when thus liberated, our subjectivity may still affect some sort of an intentionally objective material body such as we wear in dreams, a body in which it will manifest itself to itself and to others much as we do in our dreams and fantasies. (shrink)

The aim of this paper is to give a characterisation of religion and the Religious Spirit, basing itself on the Platonic assumption that there are Forms, salient jewels of simplicity and affinity, to be dug out from the soil of vague experience and cut clear from the confusedly shifting patterns of usage, which will give us conceptual mastery over the changeable detail in a given sector. It will further be Platonic in that it will not seek to discount the deep (...) gulfs between the species into which religion qua genus divides itself, i.e. its theistic, polytheistic and atheistic subvarieties, taking it to be of the essence of a true genus to extend itself over mutually exclusive species, only being what it is by including in its sense the alternatives which are thus mutually exclusive. And my treatment will be Platonic, thirdly, in that it will endeavour to delimit the Religious Spirit by, on the one hand, setting it over against what it excludes, all purely this-world talk and life which is quite irreligious, and by, on the other hand, opposing it to forms of talk and life which fall short of it in various ways or which deviate from it variously, thereby likewise contributing to our understanding of what it is. The practice of Plato, which could study the deviations from his ideal city in order to confirm his notion of its structure and excellence, and which also paired every ideal pattern with its opposite— piety with impiety, justice with self-interested tyranny, etc.—is plainly one to be followed: Plato, as we know from a citation from his contemporary Hermodorus in one of the Aristotelian commentators, always set beside the ‘in itself’ of the pure Form the deviant and the wholly negative which were nonetheless part of its sense. Religion will therefore stand before us as a target that it is possible to fall short of or miss altogether as well as to hit squarely, and we shall try by a series of glancing darts to end by hitting it squarely. (shrink)

This chapter discusses the following: (i) The Kantian concept of the Transcendental Object, and of its relation to that of the Noumenon and the Thing-in-itself; (ii) Kant's theory of knowledge cannot be positivistically interpreted, but requires underlying unities that hold appearances together, and which, by their identity, give the latter constancy of character; (iii) Kant's theory of knowledge cannot be idealistically interpreted, since it accepts the reality of a Transcendental Subject and of transcendental acts that exist beyond experience and knowledge, (...) and are constitutive of it. It also accepts the reality of many Transcendental Objects that affect our subjectivity and which have characters and relations not given to the latter, at best corresponding to phenomenal characters and relations; (iv) Kant's phenomenalism is more radical than other phenomenalisms in that it accepts space and time only as ordering forms for phenomena. But it advances important arguments, based mainly on ontological criteria, for restricting them to what is thus phenomenal; (v) The regular connection among the appearances of objects is the necessary empirical surrogate for the unity of the objects from which they spring. Kant therefore makes use of his metempirical presuppositions to illuminate phenomenal data. (shrink)

Philosophers have often debated the truth of microstructural essentialism about chemical substances: whether or not the structure of a chemical substance at the molecular scale is what makes it the substance it is. Oddly they have tended to pursue this debate without identifying what a structure is, and with some confusion and about what a chemical substance is. In this paper I draw on chemistry to rectify those omissions, providing a pluralist account of structure, clarifying what (according to chemistry) a (...) chemical substance is and defending microstructural essentialism, as I understand that position. I then give an account of the existence of composite substances and objects in chemistry, an issue that goes back to Aristotle. (shrink)

I am both happy and honoured to have been asked to give this lecture on mysticism in memory of Leo Robertson, of whom I have many very pleasant memories. It was a delight to be wafted off to the Saville Club after a lecture here, and to discuss mysticism and philosophy on one of its many sofas. I am very sorry that this particular pleasure will not recur. Leo Robertson belonged to an old-fashioned climate of thought in which an interest (...) in mysticism was respectable, and a long stay in the East had confirmed him in these leanings. I myself have always been constitutionally mystical, feeling that certain kinds of rapture, concerned with work, beauty, love and a few other things, are the only things absolutely worth having. I dropped my mysticism for a long period, partly on account of certain disillusioning experiences in my ’twenties, and partly out of deference to the dry methods and doctrine that prevailed in British philosophy. Latterly, however, increasing age has restored many of my illusions and made me generally more tender-minded; also, seeing the completely nugatory accomplishments of purely unmystical analysis, I have found myself reverting increasingly to my original mysticism. It was very refreshing to talk to a philosopher like Leo Robertson who took mysticism with the complete seriousness I think it deserves—as one of the truly fundamental human attitudes—but who also thought of it as supplementing and completing, rather than as undermining and nullifying, what other less rarefied thinkers do. It was also refreshing to hear all his talk about an earlier Cambridge, where he knew Wittgenstein in the full brilliance of his personal beauty as well as of his intelligence, and also knew Moore in the golden period of his dialectic, before he became so very preoccupied with the minutiae of the English language. Leo Robertson was a complete and rounded philosopher rather than a hamstrung one, and knowing him has been a factor in strengthening my resolve to be a complete and rounded thinker too. (shrink)

It was in my view a very important thing that took place when, at the beginning of the Third Century A.D., Ammonius Saccas began his exegeses of Plato, basing himself on the important assumption, much more true than false, of a profound homodoxy or agreement of opinion between Plato and Aristotle. This work involved an attempt to see Plato as something more than a brilliant virtuoso of inconclusive, often fallacious argument—a role only admirable in Socrates on account of his existentially (...) revealed conviction of the impossibility of defining the virtues in a clear-cut manner, or apart from one another, or from the critical activity which redefines them unendingly—and which also sees Plato as something more than an ancestor of the Pythagorean mystagogues who dispensed a way of life to those doomed to live it under the Caesars, or of philosophical littérateurs of Ciceronian and similar types. It represented an attempt to make serious philosophical sense of Plato as a thinker desirous of determining what primarily is, and what only is in some secondary or derivative sense, and how the various grades and senses of being may be accommodated to one another and to the human soul with its profound need to understand and love. And it necessarily sought support in such texts as the Phaedo, the Phaedrus, the Symposium, the Republic, the Timaeus, and the Letters, as well as in a suitably interpreted Sophist and Parmenides, and hardly at all in such brilliant recrudescences of Socratic inconclusiveness as the latter half of the Theaetetus. And it incorporated strands from the pre-Socratics and from Aristotle because these were seen as either leading up to, or continuing, the serious Platonic effort. I am myself disposed to ascribe this new wave of Platonic deepening to Ammonius rather than Plotinus, since there is singularly little development of doctrine in the smoothly written Enneads, and since Plotinus only began to publish his doctrine when his two fellow pupils, Erennius and Origen, had started to divulge what their Master had taught them. (shrink)

I raise these points because in 1941 I attempted to carry out a project of Wittgenstein’s and to show how all the so-called problems of Time arose out of a strange misunderstanding of the flexible ways of our language, so that we asked questions which could not be answered simply because they violated logical grammar. The concept of the Now of the Present is in ordinary usage infinitely flexible: it can be stretched to cover a decade or a century, or (...) narrowed down to cover what is over in a flash. We are, therefore, inclined to extend it till it covers the whole history of the universe, or to narrow it down till it becomes a mere limit, no sooner arrived at than departed from, and in which it is not significant to posit either a state or a change. In the latter case, we have, then, the problem of constituting Time out of such momentary nothings, which are, even qua nothings, not there all together or, alternatively, of wondering how anything can happen if, before it happens, something else must first happen, and before that again something else, and so on ad infinitum. We have, in short, all the difficulties with which Augustine and Zeno plagued the ancients, to which we may now add the difficulties with which McTaggart has worried the moderns, asking how the same event can be future, present, and past, when it must be these incompatible things at different successive times, and these times, in their turn, must be future, present, and past at different times, and so on ad infinitum. To all these celebrated difficulties the line that I took was plain: that they arose out of imposing a wrong exactness and a wrong generality on the flexible ways of our speech. Augustine and Zeno perplexed us since we failed to see that the present, though never of zero or infinite length, could be just as long or as short as we liked to make it, and McTaggart confused us since we failed to see that there were two distinct ways of talking about events and states, one which remained invariant wherever one was stationed in history, and one which changed according as one changed one’s historical position, and that there was nothing self-contradictory in either form of speech but only in the attempt to combine them. (shrink)

The present paper is a very hastily executed attempt to provide a philosophical account of personality within the framework of a more or less Platonic ontology. I am writing it because I believe the conscious person, the “soul” as it would have been called in an earlier thought-dispensation, to be one of the most interesting and pivotal of cosmic structures, one which, if dealt with in a careless or reachme-down manner, as a side-issue or queer offshoot of things not conceived (...) in its peculiar terms and manner, will throw one’s whole cosmic picture and system of fundamental categories out of joint. The conscious person may be an extremely rare, transitory, fortuitously produced phenomenon—there are increasing grounds for regarding it in this manner—but its modes of operation and some of its basic logical properties are so very extraordinary as perhaps to throw more light on the universe out of which it arises than the indefinitely numerous, unconscious, impersonal things which surround it on every side and which will with some probability ultimately engulf it. I am also writing it because I have come to entertain the conviction that what absolutely and unambiguously is, is more of the nature of a universal, a subsistent, an essence, something which is a Nature or Character itself, rather than anything which transitorily or inadequately embodies or exemplifies or is a case of it, and because I wish to accommodate these two profoundly held convictions to one another. My problem is the one Plato dealt with whenever, as in the Phaedo, Timaeus, and other writings, he tried to see how Soul, the source of motion in the changeable world, and itself internally changeable, can stand to essences of which it does not make sense to predicate intrinsic change. And it is also the issue dealt with by Hegel when he makes conscious Spirit the carrying out into full reality of the eternal Idea, and when he goes so far as to identify the Ego, which is the center of the conscious person, with absolute universality and negativity in its purest, most intransigent, all-sublating form. (shrink)

This paper undertakes two tasks. It will endeavour, first of all, to establish that there is a difficult discipline called Absolute-theory - Aristotle called it First Philosophy or Theology - which builds itself around the concept of a unique something which exists in an unqualified and necessary manner, and to which everything not itself attaches, or from which it in one manner or another derives. We shall try to distinguish the different strands or strata in the conception of an Absolute, (...) and shall then consider the alternative ways in which such a concept can be developed. For though, if there is or can be anything Absolute, it is one and unique and without rivals or alternatives, there are for us a large number of alternative ways of conceiving of what is absolute, some of which are arguably better and less exposed to antinomy than others. And of course there is always for us the alternative of not conceiving or not believing in any Absolute at all. And we shall briefly glance at the great historical dynasty of Absolutes: the infinitely arbitrary, anthropomorphic, of the Judaic-Christian-Islamic tradition, the less arbitrary Aristotelian-Neoplatonic Absolute of Thomas Aquinas, the Substantial Absolute of Spinoza, the Leibnizian-Wolffian Absolute of which Kant made his Ideal of Pure Reason, the Upanishadic Absolute of Shanaracharya, the infinitely vacuous Absolute of Mahayana Buddhism, the Deistic and Materialistic Absolutes of the Eighteenth Century Enlightenment, the absolute Space-Time of modern physicists, the Aussersein of Alexius Meinong and the Logical Space of Ludwig Wittgenstein. If the construction of Absolutes is an unrewarding language-and thought-game, it is none the less one which practically all the more intense thinkers have tried to play. I shall next, in the second part of my paper, try to establish that Hegel is by far the subtlest and the most successful of all the Absolute-theorists. His whole philosophy may be regarded as an essay in Absolute-theory, in that it throughout does nothing but try out, modify or discard categories of thought and forms of being because they fail to measure up to an adequate conception of an Absolute. And in his vast rehearsal of categories and forms of being Hegel arguably works up to a conception of the Absolute which takes account of a far wider and richer array of issues, and forestalls a more varied assemblage of objections than any other exercise in Absolute-theory. Sometimes Hegel anticipates thought-moves that will occur long after his death: the moves, e.g., of John Stuart Mill regarding the Syllogism’s being a Petitio Principii, and inductive reasoning’s being really an inference from particulars to particulars. And it will be our contention, finally, that Hegel is by far the most successful of Absolutists, in that he, and he alone, has worked out a many-sided Logic which, whatever its imperfections, is the only sort of instrument with which Absolute-theory can be tackled. In arguing in this manner I shall be contributing to the main theme of this Congress, the nature of the Universe, for the Universe, I believe, is a very vague and degenerate sort of Absolute. (shrink)

The present paper is an attempt to study the acts and intentions which set up for the subject, and for the community of subjects, a set of values and disvalues which impose themselves as valid upon everyone, and which everyone must tend to prescribe, or to warn against, for everyone. The acts which set up a formal apophantic and ontology have been studied by Husserl in his Formal and Transcendental Logic , but he has not set out a comparable theory (...) of the acts which set up a universally valid system of values and disvalues. He has not done so because he does not believe in such a system, because his thought goes no further than the values set up for and felt to hold in a given group or society. It is my view that there is an ineluctable progress from these relativistic group-values to a set of values and disvalues holding for everyone, and that moreover in their relation to everyone, and that these values and disvalues have definite and undeniable shapes and locations, even if these shapes also have somewhat nebulous contours. The views I am expounding on this occasion are not new: they are fully set out in my Values and Intentions and my Axiological Ethics and in other writings. Ideas, however, require restatement at intervals, with a suitable change of idiom and emphasis. And I feel my views on this topic to have a claim to truth simply because, quite differently from my views on other topics, and despite constant reflection, they have hardly changed over the last two decades. The inspiration for these views was only in part Husserlian, as I do not think that the emotional and the axiological are really Husserl's strong suit. Strangely enough, that dry thinker Meinong would seem to have had a much richer emotional life and the ability to frame a theory to fit it, than the much easier and at times effusive thinker Husserl. Meinong's 1917 Austrian Imperial Academy treatise, On Emotional Presentation , recently translated for the Northwestern Phenomenology series, is a much more systematic investigation of the presuppositions of value-theory than any writing of a professed phenomenologist. What I have to say will build considerably on Meinong, always a major influence in my thought. But I have also been much influenced in my approaches to value-theory by the transcendental methods of Kant. Kant, I think, could very well have worked out a transcendental deduction of the heads of value and disvalue, a deduction much more illuminating than the dogmatic intuitionism of Scheler and Hartmann, instead of producing the arid triad of categorical imperatives that were all that he actually deduced. Imperatives, I consider, are secondary structures in value-constitution: the primary structures are the ultimate objects of necessary, rational pursuit and avoidance which Kant wrongly thought of as involving heteronomy and a corruption of pure form by matter. There is, I shall argue, nothing more free from extraneous, pathological material than the objects of the pursuits and avoidances in question. (shrink)

The framework of Findlay & Walker's target article provides a first attempt to model the saccadic system at all levels. Their scheme is based on two main principles. These are “parallel processing of saccade timing and metrics” and “competitive inhibition through winner-take-all strategies.” In our opinion, however, both concepts are in their strictest sense at odds with the current knowledge of the saccadic system, and need to be refined to make the scheme more relevant.

Here, I suggest a hitherto relatively unexplored way beyond the opposed Aristotelian realist and Kantian idealist approaches that divide recent interpretations of the categories or “thought determinations” of Hegel’s Logic, by locating his idealism within the terrain of recent debates in modal metaphysics. In particular, I return to the outlook of the first philosopher to attempt to bring Hegel into the analytic conversation, John Niemeyer Findlay, and consider Hegel’s idealism as instantiating the metaphysical position that, following the work of (...) Findlay’s former student, Arthur Prior, has come to be called “modal actualism”. (shrink)

CHARLES HARTSHORNE, in Anselm’s Discovery, begins his attempt to save the Ontological Argument by claiming that its latter half has been ‘conveniently ignored’ by its critics through nine centuries of debate. His own contentions center around a slightly updated version of Anselm’s ‘second’ Argument, as found in Proslogium III I paraphrase his reasoning as follows.

The question of when a person is culpable for taking an unjustified risk of harm has long been controversial in Anglo-American criminal law doctrine and theory. This survey of the approaches adopted in England and Wales, Canada, Australia, the United States, New Zealand and Scotland argues that they are converging, to differing extents, around a 'Standard Account' of culpable unjustified risk-taking. This Standard Account distinguishes between awareness-based culpability and inadvertence-based culpability for unjustified risk-taking. With reference to criminal law theory and (...) philosophical literature, the author argues that, when explained appropriately, the Standard Account is defensible and practical. Defending the Standard Account involves analysing in depth a number of controversial matters, including the meaning of advertence/awareness, the role of attitudes such as indifference in culpable risk-taking, and the question of whether negligence should be used in the criminal law. (shrink)

Recklessness involves unreasonable/unjustified risk-taking. The argument here is that recklessness in the criminal law is best understood as nevertheless containing an element of reasonableness. To be reckless, on this view, the defendant must reasonably believe that she is exposing others to a risk of harm. If the defendant’s belief about the risk being imposed by her conduct is unreasonable, she should not be considered reckless. This point is most important in relation to offences of endangerment where recklessness sets the outer (...) limits of criminal liability. (shrink)

Existing justifications for exclusionary rules and stays of proceedings in response to pre-trial wrongdoing by police officers and prosecutors are often thought to be counter-productive or disproportionate in their consequences. This article begins to explore whether the concept of standing to blame can provide a fresh justification for such responses. It focuses on a vice related to standing—hypocrisy—and a related vice concerning inconsistent blame. It takes seriously the point that criminal justice agencies, although all part of the State, are in (...) real terms separated from each other, and analyses the so-called separation thesis (or theses). It concludes that hypocrisy and inconsistent blame arguments could plausibly justify exclusion and stays only in relation to lower-level offending, and even there only indirectly. This is in the sense that exclusion and stays are expressions of judicial frustration with other bodies for their failure to take pre-trial wrongdoing seriously. (shrink)

More than one third of the human brain is devoted to the processes of seeing - vision is after all the main way in which we gather information about the world. But human vision is a dynamic process during which the eyes continually sample the environment. Where most books on vision consider it as a passive activity, this book is unique in focusing on vision as an 'active' process. It goes beyond most accounts of vision where the focus is on (...) seeing, to provide an integrated account of seeing AND looking. The book starts by pointing out the weaknesses in our traditional approaches to vision and the reason we need this new approach. It then gives a thorough description of basic details of the visual and oculomotor systems necessary to understand active vision. The book goes on to show how this approach can give a new perspective on visual attention, and how the approach has progressed in the areas of visual orienting, reading, visual search, scene perception and neuropsychology. Finally, the book summarises progress by showing how this approach sheds new light on the old problem of how we maintain perception of a stable visual world. Written by two leading vision scientists, this book will be valuable for vision researchers and psychology students, from undergraduate level upwards. (shrink)

Mechanisms are the how of chemical reactions. Substances are individuated by their structures at the molecular scale, so a chemical reaction is just the transformation of reagent structures into product structures. Explaining a chemical reaction must therefore involve different hypotheses about how this might happen: proposing, investigating and sometimes eliminating different possible pathways from reagents to products. One distinctive aspect of mechanisms in chemistry is that they are broken down into a few basic kinds of step involving the breaking and (...) making of bonds between atoms. This is necessary for chemical kinetics, the study of how fast reactions happen, and what affects it. It draws on G.N. Lewis’ identification of the chemical bond as involving shared electrons, which from the 1920s achieved the commensuration of chemistry and physics. The breaking or making of a bond just is the transfer of electrons, so a chemical bond on one side of an equation might be balanced on the other side by the appearance of a corresponding quantity of excess charge. A bond is understood to have been exchanged for a pair of electrons. Since reaction mechanisms rely on identities, doesn’t the establishment of a reaction mechanism explain away the chemical phenomena, showing that they are no more than the movement of charges and masses? In one sense yes: these mechanisms seem to involve a conserved-quantity conception of causation. But in another sense no: the ‘lower-level’ entities can do what they do only when embedded in higher-level organisation or structure. There need be no threat of reduction. (shrink)

This paper is an attempt to clarify our talk about minds and thoughts—our own minds and the thoughts which run through them and which we know directly, as well as the minds of other people and the thoughts with which we credit them. We do so in order to be able to characterize satisfactorily our whole performance in talking about minds and thoughts, the rules according to which such talk operates and the goals it purports to reach. We also hope (...) to evaluate, in the light of such a characterization, a number of more elaborate ways of speaking about minds and thoughts, so as to become clear as to their advantages or disadvantages in comparison with more ordinary ways of speaking. The whole investigation is well worth undertaking, since it has long been evident that our talk about mind and thought is, to a peculiar extent, liable to become the seat of certain deep perplexities, which do not arise when we deal with unusual material on the borderlines of knowledge, but which tend, rather, to obtrude themselves in commonplace situations, and to trouble our grasp of the most obvious notions and the most evident truths. Such perplexities, broadly covered by the word “philosophical,” are rendered very stubborn by their objects and their origin. For when we are dealing with things remote, strange and intricate, we have at least a firm foothold in the well-known, simple and near, and a clear set of terms to talk with; but we hardly seem to have a perch to hop to, or any intelligible language left to talk in, when the obvious itself begins to present difficulties. And it is also characteristic of most of the difficulties we are considering that in them the burning zone of perplexity seems to shift erratically from issue to issue, that each expedient adopted to meet them involves us in new problems, that men cannot ever agree as to the best expedient or the least serious difficulty, and that, in the outcome, they resemble nothing so much as a set of sleepers under inadequate coverings, some of whom prefer exposure in one place, while others prefer it in another. (shrink)

This paper presents Integrated Information Theory (IIT) 4.0. IIT aims to account for the properties of experience in physical (operational) terms. It identifies the essential properties of experience (axioms), infers the necessary and sufficient properties that its substrate must satisfy (postulates), and expresses them in mathematical terms. In principle, the postulates can be applied to any system of units in a state to determine whether it is conscious, to what degree, and in what way. IIT offers a parsimonious explanation of (...) empirical evidence, makes testable predictions, and permits inferences and extrapolations. IIT 4.0 incorporates several developments of the past ten years, including a more accurate translation of axioms into postulates and mathematical expressions, the introduction of a unique measure of intrinsic information that is consistent with the postulates, and an explicit assessment of causal relations. By fully unfolding a system's irreducible cause-effect power, the distinctions and relations specified by a substrate can account for the quality of experience. (shrink)

Darwin’s theory of evolution by natural selection is central to modern biology, but is resisted by many people. This paper discusses the major psychological obstacles to accepting Darwin’s theory. Cognitive obstacles to adopting evolution by natural selection include conceptual difficulties, methodological issues, and coherence problems that derive from the intuitiveness of alternative theories. The main emotional obstacles to accepting evolution are its apparent conflict with valued beliefs about God, souls, and morality. We draw on the philosophy of science and on (...) a psychological theory of cognitive and emotional belief revision to make suggestions about what can be done to improve acceptance of Darwinian ideas. (shrink)

Magnetoencephalography is increasingly used for presurgical planning in people with medically refractory focal epilepsy. Localization of interictal epileptiform activity, a surrogate for the seizure onset zone whose removal may prevent seizures, is challenging and depends on the use of multiple complementary techniques. Accurate and reliable localization of epileptiform activity from spontaneous MEG data has been an elusive goal. One approach toward this goal is to use a novel Bayesian inference algorithm—the Champagne algorithm with noise learning—which has shown tremendous success in (...) source reconstruction, especially for focal brain sources. In this study, we localized sources of manually identified MEG spikes using the Champagne algorithm in a cohort of 16 patients with medically refractory epilepsy collected in two consecutive series. To evaluate the reliability of this approach, we compared the performance to equivalent current dipole modeling, a conventional source localization technique that is commonly used in clinical practice. Results suggest that Champagne may be a robust, automated, alternative to manual parametric dipole fitting methods for localization of interictal MEG spikes, in addition to its previously described clinical and research applications. (shrink)