Transformer-based Pre-Trained Language Models currently dominate the field of Natural Language Inference (NLI). We first survey existing NLI datasets, and we systematize them according to the different kinds of logical inferences that are being distinguished. This shows two gaps in the current dataset landscape, which we propose to address with one dataset that has been developed in argumentative writing research as well as a new one building on syllogistic logic. Throughout, we also explore the promises of ChatGPT. Our results show (...) that our new datasets do pose a challenge to existing methods and models, including ChatGPT, and that tackling this challenge via fine-tuning yields only partly satisfactory results. (shrink)

Over the years, Katie Cannon's students referred to her work in progress as "Katie's canon." Not only does this book represent the canon of Cannon's best work; the book itself directly addresses the issues of canon formation and canon reformation. Cannon canonizes a literary tradition and directly addresses both oppression and liberation of African American women. Now in an expanded 25th-anniversary edition, Katie's Canon still packs firepower.

This book explores the nature, value, and role of hope in human life under conditions of oppression. Oppression is often a threat and damage to hope, yet many members of oppressed groups, including prominent activists pursuing a more just world, find hope valuable and even essential to their personal and political lives. This book offers a unique evaluative framework for hope that captures the intrinsic value of hope for many of us, the rationality and morality of hope, and ultimately how (...) we can hope well in the non-ideal world we share. It develops an account of the relationship between hope and anger about oppression and argues that anger tends to be accompanied by hopes for repair. When people’s hopes for repair are not realized, as is often the case for those who are oppressed, anger can evolve into bitterness: a form of unresolved anger involving a loss of hope that injustice will be sufficiently acknowledged and addressed. But even when all hope might seem lost or out of reach, faith can enable resilience in the face of oppression. Spiritual faith, faith in humanity, and moral faith are part of what motivates people to join in solidarity against injustice, through which hope can be recovered collectively. Joining with others who share one’s experiences or commitments for a better world, and uniting with them in collective action, can restore and strengthen hope for the future when hope might otherwise be lost. (shrink)

Hegel’s Science of Logic is widely acknowledged as one of the greatest works of European philosophy. However, its contribution to arguably the most important philosophical problem, Pyrrhonian scepticism, has never been examined in any detail. Pyrrhonian Scepticism and Hegel's Theory of Judgement fills a great lacuna in Hegel scholarship by convincingly proving that the dialectic of the judgement in Hegel’s Science of Logic successfully refutes this kind of scepticism. Although Ioannis Trisokkas has written the book primarily for those students (...) of philosophy who already have an interest in Hegel’s epistemology and philosophy of language and/or his Science of Logic, it will also appeal to those who investigate the problem of scepticism independently of the Hegel corpus. (shrink)

Aesthetic perception is one of the most interesting topics for philosophers and scientists who investigate how it influences our interactions with objects and states of affairs. Over the last few years, several studies have attempted to determine “how aesthetics is represented in an object,” and how a specific feature of an object could evoke the respective feelings during perception. Despite the vast number of approaches and models, we believe that these explanations do not resolve the problem concerning the conditions under (...) which aesthetic perception occurs, and what constitutes the content of these perceptions. Adopting a naturalistic perspective, we here view aesthetic perception as a normative process that enables agents to enhance their interactions with physical and socio-cultural environments. Considering perception as an anticipatory and preparatory process of detection and evaluation of indications of potential interactions, we argue that the minimal content of aesthetic perception is an emotionally valued indication of interaction potentiality. Aesthetic perception allows an agent to normatively anticipate interaction potentialities, thus increasing sense making and reducing the uncertainty of interaction. This conception of aesthetic perception is compatible with contemporary evidence from neuroscience, experimental aesthetics, and interaction design. The proposed model overcomes several problems of transcendental, art-centered, and objective aesthetics as it offers an alternative to the idea of aesthetic objects that carry inherent values by explaining “the aesthetic” as emergent in perception within a context of uncertain interaction. (shrink)

Recent critics (Andrew Light, Bryan Norton, Anthony Weston, and Bruce Morito, among others) have argued that we should give up talk of intrinsic value in general and that of nature in particular. While earlier theorists might have overestimated the importance of intrinsic value, these recent critics underestimate its importance. Claims about a thing’s intrinsic value are claims about the distinctive way in which we have reason to care about that thing. If we understand intrinsic value in this manner, we can (...) capture the core claims that environmentalists want to make about nature while avoiding the worries raised by contemporary critics. Since the distinction between intrinsic and extrinsic value plays a critical role in our understanding of the different ways that we do and should care about things, moral psychology, ethical theory in general, and environmental ethics in particular shouldn’t give up on the concept of intrinsic value. (shrink)

We investigate the impact of perceived greenwashing on customer satisfaction. Unlike prior research that largely examines customer perceptions associated with irresponsible behavior, we focus on cases where firms overcommit and/or do not deliver on promised socially responsible actions. We theorize that this type of greenwashing is associated with lower customer satisfaction because customers perceive greenwashing through the lens of corporate hypocrisy. Using data from the American Customer Satisfaction Index (ACSI) for U.S. companies during the period 2008–2016, we document a negative (...) link between perceived greenwashing related to green product innovation (GPI) and the ACSI index. We demonstrate that this effect is primarily triggered by corporate policies exceeding the corresponding implementation actions and not by lower levels of implementation. We also show that a firm’s capability reputation mitigates the negative effect of greenwashing on customer satisfaction. Moreover, we conduct an experiment and provide evidence confirming that GPI greenwashing is in fact perceived by customers as corporate hypocrisy. (shrink)

Structural realists of nearly all stripes endorse the structural continuity claim. Roughly speaking, this is the claim that the structure of successful scientific theories survives theory change because it has latched on to the structure of the world. In this paper I elaborate, elucidate and modify the structural continuity claim and its associated argument. I do so without presupposing a particular conception of structure that favours this or that kind of structural realism. Instead I focus on how structural realists can (...) best account for the neutrally formulated historical facts. The result, I hope, crystallises some of the shared commitments, desiderata and limits of structural realists. (shrink)

While the fundamental laws of physics are time-reversal invariant, most macroscopic processes are irreversible. Given that the fundamental laws are taken to underpin all other processes, how can the fundamental time-symmetry be reconciled with the asymmetry manifest elsewhere? In statistical mechanics, progress can be made with this question. What I dub the ‘Zwanzig–Zeh–Wallace framework’ can be used to construct the irreversible equations of SM from the underlying microdynamics. Yet this framework uses coarse-graining, a procedure that has faced much criticism. I (...) focus on two objections in the literature: claims that coarse-graining makes time-asymmetry ‘illusory’ and ‘anthropocentric’. I argue that these objections arise from an unsatisfactory justification of coarse-graining prevalent in the literature, rather than from coarse-graining itself. This justification relies on the idea of measurement imprecision. By considering the role that abstraction and autonomy play, I provide an alternative justification and offer replies to the illusory and anthropocentric objections. Finally, I consider the broader consequences of this alternative justification: the connection to debates about inter-theoretic reduction and the implication that the time-asymmetry in SM is weakly emergent. 1Introduction 1.1Prospectus2The Zwanzig–Zeh–Wallace Framework3Why Does This Method Work? 3.1The special conditions account3.2When is a density forwards-compatible?4Anthropocentrism and Illusion: Two Objections 4.1The two objections in more detail4.2Against the justification by measurement imprecision5An Alternative Justification 5.1Abstraction and autonomy5.2An illustration: the Game of Life6Reply to Illusory7Reply to Anthropocentric8The Wider Landscape: Concluding Remarks 8.1Inter-theoretic relations8.2The nature of irreversibility. (shrink)

I argue that different approaches to environmental ethics can be traced to different ways of thinking about value. In particular, it can be traced to different understandings of what kinds of things are the primary bearers of value and different views about how we should respond to that value. These different ways of thinking about value are thought to have their origins in consequentialism and Kantianism, respectively. I briefly describe these theoretical differences and consider how they lead to different approaches (...) in environmental ethics, with particular attention to the issue of climate change. (shrink)

The aim of this paper is to put in place some cornerstones in the foundations for an objective theory of confirmation by considering lessons from the failures of predictivism. Discussion begins with a widely accepted challenge, to find out what is needed in addition to the right kind of inferential–semantical relations between hypothesis and evidence to have a complete account of confirmation, one that gives a definitive answer to the question whether hypotheses branded as “post hoc monsters” can be confirmed. (...) The predictivist view is then presented as a way to meet this challenge. Particular attention is paid to Worrall’s version of predictivism, as it appears to be the most sophisticated of the lot. It is argued that, despite its faults, his view turns our heads in the right direction by attempting to remove contingent considerations from confirmational matters. The demand to remove such considerations becomes the first of four cornerstones. Each cornerstone is put in place with the aim to steer clear of the sort of failures that plague various kinds of predictivism. In the process, it becomes obvious that the original challenge is wrongheaded and in need of revision. The paper ends with just such a revision. (shrink)

The linguistic foundations of science and technology include many terms that have been borrowed from ancient languages. In the case of terms with origins in the Greek language, the modern meaning can often differ significantly from the original one. Here we use the PubMed database to demonstrate the prevalence of words of Greek origin in the language of modern science, and call for scientists to exercise care when coining new terms.

Theories of emotion have often maintained artificial boundaries: for instance, that cognition and emotion are separable, and that an emotion concept is separable from the emotional events that comprise its category (e.g. “fear” is distinct from instances of fear). Over the past several years, research has dissolved these artificial boundaries, suggesting instead that conceptual construction is a domain-general process—a process by which the brain makes meaning of the world. The brain constructs emotion concepts, but also cognitions and perceptions, all in (...) the service of guiding action. In this view, concepts are multimodal constructions, dynamically prepared from a set of highly variable instances. This approach obviates old questions (e.g. how does cognition regulate emotion?) but generates new ones (e.g. how does a brain learn emotion concepts?). In this paper, we review this constructionist, predictive coding account of emotion, considering its implications for health and well-being, culture and development. (shrink)

This book guides teachers from all content areas and grade levels to create outstanding Service Learning projects with students like no other book does.

Let's learn about the things all around us, with this fun, bright book of first concepts.

This article is about the special, subjective concepts we apply to experience, called “phenomenal concepts”. They are of special interest in a number of ways. First, they refer to phenomenal experiences, and the qualitative character of those experiences whose metaphysical status is hotly debated. Conscious experience strike many philosophers as philosophically problematic and difficult to accommodate within a physicalistic metaphysics. Second, PCs are widely thought to be special and unique among concepts. The sense that there is something special about PCs (...) is very closely tied up with features of the epistemic access they afford to qualia. When we deploy phenomenal concepts introspectively to some phenomenally conscious experience as it occurs, we are said to be acquainted with our own conscious experiences. Accounts of PCs either have to explain the acquaintance relation, or acquaintance with our phenomenal experiences has to be denied. PCs have received much attention in recent philosophy of mind mainly because they figure in arguments for dualism and in physicalist responses to these arguments. The main topic of this paper is to explore different accounts of phenomenal concepts and their role in recent debates over the metaphysical status of phenomenal consciousness. (shrink)

The Bayesian maxim for rational learning could be described as conservative change from one probabilistic belief or credence function to another in response to newinformation. Roughly: ‘Hold fixed any credences that are not directly affected by the learning experience.’ This is precisely articulated for the case when we learn that some proposition that we had previously entertained is indeed true (the rule of conditionalisation). But can this conservative-change maxim be extended to revising one’s credences in response to entertaining propositions or (...) concepts of which one was previously unaware? The economists Karni and Vierø (2013, 2015) make a proposal in this spirit. Philosophers have adopted effectively the same rule: revision in response to growing awareness should not affect the relative probabilities of propositions in one’s ‘old’ epistemic state. The rule is compelling, but only under the assumptions that its advocates introduce. It is not a general requirement of rationality, or so we argue. We provide informal counterexamples. And we show that, when awareness grows, the boundary between one’s ‘old’ and ‘new’ epistemic commitments is blurred. Accordingly, there is no general notion of conservative change in this setting. (shrink)

In celebrating the epistemological reform and empowerment of non-white peoples in the academy, we propose a manifesto that seeks to dislodge the complacencies within Sikh Studies and within Sikh communities, and invite non-Sikhs to engage with radical Sikhi social justice. By dwelling at feminist intersections of postcolonial studies, decolonial studies, and decolonization studies, we are inspired to share the radical possibilities of Sikh Studies, and we also urge Sikh Studies and Sikh people to inhabit an explicit political orientation of insurrection (...) and subversion. Importantly, such a feminist decolonial orientation may well hold promise for other fields of study on the margins as well. In particular, we foreground eight points of action: gendering Sikh Studies; de-policing intimate desire and the diversity of relationships; disrupting Eurocentric knowledge production; de-territorializing diasporas; challenging caste politics; disrupting Islamophobia; undoing our roles in contemporary colonialisms; and fostering care and responsibility for the nonhuman world. In this manifesto we hope to develop interdisciplinary connections, critical interventions, and broader alliances to cultivate debates and action that both challenge tradition and participate within broader political campaigns for social justice. (shrink)

We examine the circumstances under which young people engage in fabricated self-representations and explore the individual and societal factors that compel and sanction these fabrications. There are circumstances under which self-fabrications may have beneficial effects and are, thus, authorized representations of the self. In contrast, a false, or unauthorized, self-representation is one that results in harm to the self, to others, and/or society. We discuss an educational curriculum designed to encourage students to reflect on their roles and responsibilities in the (...) broader society as they pursue their personal goals. (shrink)

Internet protocol development is a social process, and resulting protocols are shaped by their developers’ politics and values. This article argues that the work of protocol development poses barriers to developers’ reflection upon values and politics in protocol design. A participant observation of a team developing internet protocols revealed that difficulties defining the stakeholders in an infrastructure and tensions between local and global viewpoints both complicated values reflection. Further, Internet architects tended to equate a core value of interoperability with values (...) neutrality. The article describes how particular work practices within infrastructure development overcame these challenges by engaging developers in praxis: situated, lived experience of the social nature of technology. (shrink)

In this paper we describe an approach to practical reasoning, reasoning about what it is best for a particular agent to do in a given situation, based on presumptive justifications of action through the instantiation of an argument scheme, which is then subject to examination through a series of critical questions. We identify three particular aspects of practical reasoning which distinguish it from theoretical reasoning. We next provide an argument scheme and an associated set of critical questions which is able (...) to capture these features. In order that both the argument scheme and the critical questions can be given precise interpretations we use the semantic structure of an Action-Based Alternating Transition System as the basis for their definition. We then work through a detailed example to show how this approach to practical reasoning can be applied to a problem solving situation, and briefly describe some other previous applications of the general approach. In a second example we relate our account to the social laws paradigm for co-ordinating multi-agent systems. The contribution of the paper is to provide firm foundations for an approach to practical reasoning based on presumptive argument in terms of a well-known model for representing the effects of actions of a group of agents. (shrink)

Within the Computer Science community, many ethical issues have emerged as significant and critical concerns. Computer ethics is an academic field in its own right and there are unique ethical issues associated with information technology. It encompasses a range of issues and concerns including privacy and agency around personal information, Artificial Intelligence and pervasive technology, the Internet of Things and surveillance applications. As computing technology impacts society at an ever growing pace, there are growing calls for more computer ethics content (...) to be included in Computer Science curricula. In this paper we present the results of a survey that polled faculty from Computer Science and related disciplines about teaching practices for computer ethics at their institutions. The survey was completed by respondents from 61 universities across 23 European countries. Participants were surveyed on whether or not computer ethics is taught to Computer Science students at each institution, the reasons why computer ethics is or is not taught, how computer ethics is taught, the background of staff who teach computer ethics and the scope of computer ethics curricula. This paper presents and discusses the results of the survey. (shrink)

Richard Rudner famously argues that the communication of scientific advice to policy makers involves ethical value judgments. His argument has, however, been rightly criticized. This article revives Rudner’s conclusion, by strengthening both his lines of argument: we generalize his initial assumption regarding the form in which scientists must communicate their results and complete his ‘backup’ argument by appealing to the difference between private and public decisions. Our conclusion that science advisors must, for deep-seated pragmatic reasons, make value judgments is further (...) bolstered by reflections on how the scientific contribution to policy is far less straightforward than the Rudner-style model suggests. (shrink)

This paper counters an objection raised against one of Bertrand Russell’s lesser-known epistemological views, viz. ‘‘structural realism’’ (SR). In short, SR holds that at most we have knowledge of the structure of the external (i.e., physical) world. M. H. A. Newman’s allegedly fatal objection is that SR is either trivial or false. I argue that the accusation of triviality is itself empty since it fails to establish that SR knowledge claims are uninformative. Moreover, appealing to Quine’s notion of ontological relativity, (...) I suggest that far from being false, SR knowledge claims seem to be the most that we can hope for. (shrink)

Ovid's disclaimers in theArs Amatorianeed to be read in this context. My main argument is that, in his disclaimers, Ovid is rendering his female readership socially unrecognizable, rather than excluding respectable virgins andmatronaefrom his audience.Ars1.31–4, Ovid's programmatic statement about his work's target audience, is a case in point. A closer look at the passage shows that he does not necessarily warn off Roman wives and marriageable girls:este procul, uittae tenues, insigne pudoris,quaeque tegis medios instita longa pedes:nos Venerem tutam concessaque furta (...) canemusinque meo nullum carmine crimen erit. Ov.Ars Am.1.31–4Stay away, slender fillets, symbol of modesty,and you, long hem, who cover half the feet:we shall sing of safe sex and permitted cheatingand there will be no wrong in my song. (shrink)

This study identified and described ethical problems encountered by physiotherapists in their practice and physiotherapists’ moral sensitivity in ethical situations. A questionnaire-based survey was constructed to identify ethical problems, and the Moral Sensitivity Questionnaire Revised version was used to measure moral sensitivity. Physiotherapists (n = 116) working in public health services responded to the questionnaire. Based on the results, most of the physiotherapists encounter ethical problems weekly. They concern mainly financial considerations, equality and justice, professionalism, unethical conduct of physiotherapists or (...) other professions and patients’ self-determination. The dimension of moral strength was emphasised in physiotherapists’ self-evaluations of their moral sensitivity. As a conclusion, ethical problems do occur not only at individual level but also at organisational and society level. Physiotherapists seem to have moral strength for speaking on behalf of the patient. Scarce resources make them feel insufficient but much could still be done to provide quality care in co-operation with other health-care professionals. (shrink)

A significant thread in Boris Hessen‟s iconic essay, The Social and Economic Roots of Newton’s Principia (1931), is his critique of Newton‟s involving God in his physics. Contra Newton, Hessen believes that nature does not need God in order to function properly. Hessen gives two, quite distinct, „internal‟ explanations of Newton‟s failure to see this. The first explanation is that Newton‟s failure is caused by his believing that motion is a mode instead of an attribute or essence of matter. The (...) second explanation is that Newton‟s failure is owed to his considering mechanical motion as the sole form of the motion of matter: Newton, in Hessen‟s view, did not realize that matter has many forms of motion which constantly transform into one another while conserving energy. In the present paper, I defend the thesis that none of these explanations can account for Newton‟s failure. Hessen‟s first explanation is problematic because even if Newton believed that motion is an attribute or essence of matter, he would still be obliged to involve God in physics. His second explanation fails too because he does not show exactly how the multiplicity and inter-transformation of forms of motion can account for nature‟s organizational structure. (shrink)

We argue that concerns about double-counting—using the same evidence both to calibrate or tune climate models and also to confirm or verify that the models are adequate—deserve more careful scrutiny in climate modelling circles. It is widely held that double-counting is bad and that separate data must be used for calibration and confirmation. We show that this is far from obviously true, and that climate scientists may be confusing their targets. Our analysis turns on a Bayesian/relative-likelihood approach to incremental confirmation. (...) According to this approach, double-counting is entirely proper. We go on to discuss plausible difficulties with calibrating climate models, and we distinguish more and less ambitious notions of confirmation. Strong claims of confirmation may not, in many cases, be warranted, but it would be a mistake to regard double-counting as the culprit. 1 Introduction2 Remarks about Models and Adequacy-for-Purpose3 Evidence for Calibration Can Also Yield Comparative Confirmation3.1 Double-counting I3.2 Double-counting II4 Climate Science Examples: Comparative Confirmation in Practice4.1 Confirmation due to better and worse best fits4.2 Confirmation due to more and less plausible forcings values5 Old Evidence6 Doubts about the Relevance of Past Data7 Non-comparative Confirmation and Catch-Alls8 Climate Science Example: Non-comparative Confirmation and Catch-Alls in Practice9 Concluding Remarks. (shrink)

Socrates’ analogy between the city and the soul in the Republic is a crucial part of the dialogue, since it forms the basis for the interlocutors’ definition of justice. Critics allege that there are structural inconsistencies between the city and the soul, and that even if they were somehow structurally analogous, they are nevertheless dif- ferent. Why, then, would one expect that justice in one would be enlightening for the discovery of justice in the other? This paper examines the passages (...) in which the anal- ogy is developed and finds that Socrates’ claims regarding similarities between the city and the soul are not as far-fetched as critics assert. Criticisms of the analogy are shown to be misunderstandings arising from an unwillingness to accept the political implications of Socrates’ plan. Ultimately, the analogy rests on important structural similarities between the city and the soul, and is a powerful tool towards an under- standing of the individual, of the city and of justice. (shrink)

_The Business of Being Made_ is the first book to critically analyze assisted reproductive technologies from a transdisciplinary perspective integrating psychoanalytic and cultural theories. It is a ground-breaking collection exploring ARTs through diverse methods including interview research, clinical case studies, psychoanalytic based ethnography, and memoir. Gathering clinicians and researchers who specialize in this area, this book engages current research in psychoanalysis, sociology, anthropology, philosophy and debates in feminist, queer and cultural theory about affect, temporality, and bodies. With psychoanalysis as its (...) fulcrum, _The Business of Being Made_ explores the social constructions and personal experiences of ARTs. Katie Gentile frames the cultural context, exploring the ways ARTs have become a complex form of playing with time, attempting to manufacture a hopeful future in the midst of growing global uncertainty. The contributors then present a range of varied experiences related to ARTs, including: Interviews with women and men undergoing ARTs; A psychoanalytic memoir of male infertility; Clinical research and work with transgender, gay and lesbian patients creating new Oedipal constellations, the experiences of LBGTQ people within the medical system and the variety of families that emerge; Research on the experiences of egg donors and a corresponding clinical case study of successful egg donation; The experiences of ongoing failure which is the often unacknowledged for ART procedures; How and when people choose to stop using ARTs; A psychoanalytic ethnography of a neonatal intensive care unit populated in part with the babies created through these technologies and their parents, haggard and in shock after years of failed attempts. Full of original material, _The Business of Being Made_ conveys the ambivalence of these technologies without simplifying their complicated consequences for the bodies of individuals, the family, cultures, and our planet. This book will be relevant to clinicians, medical and psychological personnel working in assisted reproductive technologies and infertility, as well as academics working in the fields of sociology, literature, queer and feminist theories and at the intersections of cultural, critical and psychoanalytic theories. (shrink)

Evangelical Christianity is often thought of as oppressive to women. The #MeToo era, when many women hit a breaking point with rampant sexism, has also reached evangelical communities. Yet more than thirty million women in the United States still identify as evangelical. Why do so many women remain in male-dominated churches that marginalize them, and why do others leave? In each case, what does this cost them? The Struggle to Stay is an intimate and insightful portrait of single women's experiences (...) in evangelical churches. Drawing on unprecedented access to churches in the United States and the United Kingdom, Katie Gaddini relates the struggles of four women, interwoven with her own story of leaving behind a devout faith. She connects these personal narratives with rigorous analysis of Christianity and politics in both countries, and contextualizes them through interviews with more than fifty other evangelical women. Gaddini grapples with the complexities of obedience and resistance for women within a patriarchal religion against the backdrop of a culture war. Her exploration of how women choose to leave or remain in environments that constrain them is nuanced and personal, telling powerful stories of faith, community, isolation, and loss. Bringing together meticulous research and deep empathy, The Struggle to Stay provides a revelatory account of the private burdens that evangelical women bear. (shrink)

In this paper, we explore certain exemplifications of transgression in the history and philosophy of mathematics. We recognize transgressive acts in the transition from a “real” to an “imaginary” world. Further, we suggest the concept of proof-events that transgress traditional concepts of mathematical proof. The theory of proof-events provides us with means to identify transgressive acts in the development of a discovery proof-event. These concern the creative understanding of a purported mathematical proof by reconstructing the meaning conveyed by it, eventually (...) supplementing it, surpassing stylistic hindrances in the narrative formulated by a prover, exceeding the boundaries of the (local) logic of a prover, etc. Finally, we identify transgressive acts with discontinuous points of change in the development of proof-events and suggest formal measures for their recognition. (shrink)

Bergson's views on time are supported by the time operator qualifying complex systems with a concept of time that is essentially difierent from the clock time used to register the events. Irreversibility, unpredictability, and innovation characterize complex systems in contrast with the reversibility, predictability and lack of novelties of the regular motions of integrable systems. The idea for this work came from our teacher Ilya Prigogine who pointed out repeatedly that the time operator actually incorporates Bergson's views on time. We (...) construct a time operator which incorporates Bergson's intuitive views on durations, indeterminism, innovations and irreversibility and the significance of events in terms of inno- vation and aging. In addition, Bergson emphasized that the signif- icance of durations depends on consciousness and memory, a discussion beyond the proposed time operator. Moreover we discuss the relation of Bergson's time with the internal time concepts of Husserl and Heidegger. (shrink)

Plato's Laches, the dialogue devoted to the discovery of courage, is generally considered a failure, as the interlocutors' various definitions ultimately prove insufficient. Laches, however, notes that a definition of this kind can only be assessed by considering whether the speaker's words and deeds are in harmony. In fact he goes one step further, and admits that deeds are far more persuasive than words. He therefore declares that he is willing to let Socrates, whose deeds on the battlefield speak volumes, (...) say whatever he pleases. Although himself content to deal with words, Socrates is well aware that, as far as others are concerned, Laches is right. During his defence, for example, Socrates proposes to convince the jury that he is not afraid of death by offering them 'great proofs'; not words, but what they value, namely deeds. On his final day, having undergone a lengthy and complex attempt to persuade his friends that death is nothing to be afraid of, Socrates leaves them with a deed attuned to his word, and thus becomes, in Nietzsche's words, 'the emblem . . . above the entrance gate of science'. (shrink)

Book I of Plato's Republic is unusually eventful, yet one episode stands out: Socrates' exchange with Thrasymachus. Thrasymachus' challenge raises a hurdle that Socrates must overcome if he is to convince the audience -- both those present and those reading his account of the discussion -- that, despite plenty of evidence to the contrary, might does not make right. That challenge, however, puts Socrates in the awkward position of having to prove Thrasymachus wrong without appearing to overpower him in the (...) argument and thereby inadvertently proving his opponent's point. Socrates thus allows Thrasymachus to take the reins of the inquiry, only to overthrow and replace him. Once in charge, however, Socrates admits that his own rule over the inquiry ended in an injustice. Socrates' surprising admission signals that his demonstration was necessary to clear the ground for the discovery of justice. His power struggle with Thrasymachus thus renders Book I an indispensable part of the Republic, and foreshadows the interlocutors' troubling realization that justice and power are ultimately impossible to reconcile fully. (shrink)

In this article I am applying the anthropological term of "cosmology" to the study of Christianity in order to place plural Christian settings under a wider methodological perspective. I am drawing on the findings of my fieldwork in Southwestern Ghana, where I met twelve different Christian denominations and five traditional healers operating in one village. I am sketching a concise image of the local Nzema cosmology and then I am launching an attempt to present its Christian equivalent. Informed by the (...) situation in the field, by general history of Christianity, as well as by my personal understanding of it, my cosmological investigation yields three different Christian cosmologies, which all coincide side by side in African contexts. I see, thus, pluralism as inherent to Christianity itself, rather than as an outcome of cultural encounter between Christianity and local pre-Christian religion. (shrink)