It is very widely held that Frankfurt‐style cases—in which a counterfactual intervener stands by to bring it about that an agent performs an action but never actually acts because the agent performs that action on her own—show that free will does not require alternative possibilities. This essay argues that that conclusion is unjustified, because merely counterfactual interven‐ers may make a difference to normative properties. It presents a modified version of a fake barn case to show how a counterfactual intervener can (...) make the difference between an agent knowing a fact or merely truly believing that fact, by eliminating veretic epistemic luck. If counterfactual interveners can make this kind of difference to the epistemic status of agents, the essay argues, there is no reason why they can't make an analogous difference to agents' moral responsibility. It concludes that reflection on these cases reveals that despite the mountains of words spilled on the topic, we still don't fully understand what role access to alternative possibilities plays in whether or not agents are morally responsible for their actions. (shrink)

Anne TIHON, Théorie et réalité : l’exemple de l’astronomie an­cienne (pp. 7-23) ; Isabelle DRAELANTS, Les encyclopédies com­me sommes des connaissances, d’Isidore de Séville au XIIIe siè­cle, avec les fondements antiques (pp. 25-50) ; Andrée COLINET, Alchimie antique et médiévale avant 1300 : mystères et réalités (pp. 51-70) ; Baudouin VAN DEN ABEELE, Quelques pas de grue à travers l’histoire naturelle médiévale : un regard diversifié sur le réel (pp. 71-98) ; Régine LEURQUIN, L’astrolabe plan (pp. 99- 117) ; (...) Patricia RADELET-DE GRAVE, Copernic, Stevin, Galilée et la réalité des orbites célestes (pp. 119-151) ; Brigitte VAN TIGGELEN, Étiqueter ou définir : le réalisme dans la nomen­cla­ture chimique aux XVIIe et XVIIIe siècles (pp. 153-183) ; Michel GHINS, L’existence de l’espace et du temps selon Leon­hard Euler (pp. 185-193) ; Chantal TILMANS-CABIAUX, Le rap­port de l’idée théorique à l’expérimentation chez Hahnemann : le système homéo­pathique naissant et le réalisme (pp. 195-214) ; Jean MAWHIN, La Terre tourne-t-elle ? À propos de la philosophie scientifique de Poincaré (pp. 215-252) ; Michel WILLEM, Paul Lévy et les fondements du calcul des probabilités (pp. 253-263). (shrink)

Objective To compare the perspectives of medical students in the preclinical and clinical phases of medical training on the issue of rationing scarce medical resources in times of crisis. Methods Questionnaire-based cross-sectional study. Results A total of 201 participants took part in the study, with 100 participants in the preclinical phase group, and 101 in the clinical phase group. A multivariable analysis found that just 14.9% (n = 34) of the clinical phase students were willing to give a short-supplied blood (...) unit to the first-arrived patient to the emergency department when more patients are expected compared to 63.9% in the preclinical group (n = 62) ( p < 0.001, OR = 0.75 95% CI: 0.029−0.192). Seventy-four percent (n = 74) of the clinical phase students were found to be willing to remove a patient from a respirator to allocate it to an ill child compared to 35.7% (n = 35) in the preclinical phase group ( p < 0.001, OR = 4.168 95% CI: 1.931−8.998). Of the clinical phase group, 46.6% (n = 41) were willing to allocate a short supplied flu medicine to a patient with poor prognosis compared to 57.7% (n = 56) in the preclinical phase group ( p = 0.04, OR = 0.457 95% CI: 0.216−0.966). Conclusion Clinical exposure during training may affect the way medical students make ethical decisions, independent of age, sex, as well as marital and parental status. (shrink)

Some philosophers have criticized the use of psychopharmaceuticals on the grounds that even if these drugs enhance the person using them, they threaten their authenticity. Others have replied by pointing out that the conception of authenticity upon which this argument rests is contestable; on a rival conception, psychopharmaceuticals might be used to enhance our authenticity. Since, however, it is difficult to decide between these competing conceptions of authenticity, the debate seems to end in a stalemate. I suggest that we need (...) not resolve this debate to end the stalemate. New technologies which alter the self can be understood within the framework of the first conception of authenticity, I suggest, not as threatening the authentic self, but rather as bringing the outward appearance of the self into line with its deepest essence. Since psychopharmaceutical use can plausibly be understood on this model, it can be seen as enhancing our authenticity on either conception. (shrink)

Philosophical tradition and conspiracy theorists converge in suggesting that ordinary people ought to do their own research, rather than accept the word of others. In this paper, I argue that it’s no accident that conspiracy theorists value lay research on expert topics: such research is likely to undermine knowledge, via its effects on truth and justification. Accepting expert testimony is a far more reliable route to truth. Nevertheless, lay research has a range of benefits; in particular, it is likely to (...) lead to greater understanding, even when it does not lead to knowledge. I argue that we can reap most of the genuine benefits of lay research while minimizing the risks by engaging in exploratory, rather than truth-directed, inquiry. To engage in exploratory inquiry is to engage dogmatically, expecting to be unable to confirm the expert view or to disconfirm rivals. (shrink)

This article explores the remaking of classical liberal rights in digital spaces, with a focus on property rights in artificial intelligence (AI) crowds. The rise of crowds in digital and technological spaces has created new opportunities for users, but their accumulated contributions create added value for the platforms and manufacturers that manage the crowd, leading to a curtailment of individual autonomy. The article identifies two parallel processes that characterize individuals’ involvement in digital crowds: manufacturers construct the property rights of individual (...) users as crowd-based rights, while also working to de-crowd users in other contexts. The article compares crowd-based rights to potential group rights and individual rights in non-digital spheres, exposing the weakness of manufacturer-constituted crowd-based rights. The article concludes by discussing possible legal conceptions of the crowd and its governance. (shrink)

There is a robust scientific consensus concerning climate change and evolution. But many people reject these expert views, in favour of beliefs that are strongly at variance with the evidence. It is tempting to try to explain these beliefs by reference to ignorance or irrationality, but those who reject the expert view seem often to be no worse informed or any less rational than the majority of those who accept it. It is also tempting to try to explain these beliefs (...) by reference to epistemic overconfidence. However, this kind of overconfidence is apparently ubiquitous, so by itself it cannot explain the difference between those who accept and those who reject expert views. Instead, I will suggest that the difference is in important part explained by differential patterns of epistemic deference, and these patterns, in turn, are explained by the cues that we use to filter testimony. We rely on cues of benevolence and competence to distinguish reliable from unreliable testifiers, but when debates become deeply politicized, asserting a claim may itself constitute signalling lack of reliability. (shrink)

SummaryThe history of quantum physics has been deeply conditioned by the change in scientific practice as a social activity during the past fifty years. As a result the theory has not been allowed full maturing; both its formal and empirical advances have not resulted in a comparable conceptual progress. The recasting of quantum theory thus appears as an epistemological necessity. One of the main aspects of this process is to clear quantum theory from its persisting classical connections in order to (...) endow it with an autonomous and intrinsic status. Problems related to the foundations, description, interpretation and approximations of quantum theory are considered in turn, and various recent works are reviewed which contribute to the proposed endeavour.RésuméL'histoire de la théorie quantique a été fortement conditionnée par les changements intervenus au cours des cinquante dernières années dans la pratique scientifique en tant qu'activité sociale. La théorie en conséquence n'a pu atteindre sa pleine maturité et ses développements à la fois formels et empiriques n'ont pas conduit à des progrès conceptuels comparables. La refonte de la théorie quantique apparaît ainsi comme une nécessitéépistémologique. L'un des principaux aspects de ce processus consiste à débarrasser la théorie quantique de ses persistantes attaches classiques, de façon à lui conférer un statut autonome et intrinsèque. On considère ici tour à tour les problèmes de fondements, de terminologie, d'interprétation et de limites, de la théorie quantique, tout en passant en revue divers travaux récents contribuant à l'entreprise proposée.ZusammenfassungDie Geschichte der Quantenphysik ist in entscheidender Weise durch die Veränderungen, die in den letzten fünfzig Jahren in der wissenschaftlichen Praxis als einer sozialen Tätigkeit eingetreten sind, bestimmt worden. Die Theorie hat deshalb ihre volle Reife nicht erlangen können; ihre zugleich formalen und empirischen Entfaltungen haben nicht zu einem entsprechenden begrifflichen Fortschritt geführt. Eine Umgestaltung der Quantentheorie muss daher als ein erkenntnistheoretisches Desiderat betrachtet werden. Einer der wichtigsten Aspekte eines derartigen Unterfangens wird darin bestehen, die Theorie von ihren hartnäckigen Bindungen an klassische Begriffe zu befreien, um ihr einen eigenständigen und autonomen Status zu verleihen. Es werden die Probleme der Begründung, der Terminologie, der Interpretation und der Grenzen der Quantentheorie diskutiert, indem auch verschiedene kürzlich erschienene Arbeiten, die sich auf das vorgeschlagene Unternehmen beziehen, berücksichtigt werden. (shrink)

There's heated debate around whether people who did terrible things in the past, at a time when there was widespread acceptance of such actions, are appropriately blamed by us, on the grounds they weren't really morally ignorant, or their ignorance was itself culpable. I point to puzzles that arise if we blame them. We need to explain how they could act so badly if they weren't fully ignorant. I argue that plausible answers to that question entail that they're not blameworthy, (...) or that we lack standing to blame them. (shrink)

An influential model holds that obsessive–compulsive disorder is caused by distinctive personality traits and belief biases. But a substantial number of sufferers do not manifest these traits. I propose a predictive coding account of the disorder, which explains both the symptoms and the cognitive traits. On this account, OCD centrally involves heightened and dysfunctionally focused attention to normally unattended sensory and motor representations. As these representations have contents that predict catastrophic outcomes, patients are disposed to engage in behaviors and mental (...) rituals designed to forestall these outcomes or to produce more precise information. The same representations also cause the cognitive traits characteristic of sufferers. (shrink)

Libertarians like Robert Kane believe that indeterminism is necessaryfor free will. They think this in part because they hold both (1) thatmy being the ultimate cause of at least part of myself is necessary forfree will and (2) that indeterminism is necessary for this ``ultimateself-causation''. But seductive and intuitive as this ``USCLibertarianism'' may sound, it is untenable. In the end, nometaphysically coherent (not to mention empirically valid) conception ofultimate self-causation is available. So the basic intuition motivatingthe USC Libertarian is ultimately (...) impossible to fulfill. (shrink)

ABSTRACT Should surgeons be permitted to amputate healthy limbs if patients request such operations? We argue that if such patients are experiencing significant distress as a consequence of the rare psychological disorder named Body Integrity Identity Disorder (BIID), such operations might be permissible. We examine rival accounts of the origins of the desire for healthy limb amputations and argue that none are as plausible as the BIID hypothesis. We then turn to the moral arguments against such operations, and argue that (...) on the evidence available, none is compelling. BIID sufferers meet reasonable standards for rationality and autonomy: so as long as no other effective treatment for their disorder is available, surgeons ought to be allowed to accede to their requests. (shrink)

I argue that the intellectualist account of knowledge-how, according to which agents have the knowledge-how to \ in virtue of standing in an appropriate relation to a proposition, is only half right. On the composition view defended here, knowledge-how at least typically requires both propositional knowledge and motor representations. Motor representations are not mere dispositions to behavior because they have representational content, and they play a central role in realizing the intelligence in knowledge-how. But since motor representations are not propositional, (...) propositional knowledge is not sufficient for knowledge-how. (shrink)

The accusation of virtue signalling is typically understood as a serious charge. Those accused usually respond by attempting to show that they are doing no such thing. In this paper, I argue that we ought to embrace the charge, rather than angrily reject it. I argue that this response can draw support from cognitive science, on the one hand, and from social epistemology on the other. I claim that we may appropriately concede that what we are doing is virtue signalling, (...) because virtue signalling is morally appropriate. It neither expresses vices, nor is hypocritical, nor does it degrade the quality of public moral discourse. Signalling our commitment to norms is a central and justifiable function of moral discourse, and the same signals provide evidence that is appropriately taken into account in forming moral beliefs. (shrink)

No-platforming—the refusal to allow those who espouse views seen as inflammatory the opportunity to speak in certain forums—is very controversial. Proponents typically cite the possibility of harms to disadvantaged groups and, sometimes, epistemically paternalistic considerations. Opponents invoke the value of free speech and respect for intellectual autonomy in favor of more open speech, arguing that the harms that might arise from bad speech are best addressed by rebuttal, not silencing. In this article, I argue that there is a powerful consideration (...) in favor of no-platforming some speakers: allowing them a platform generates genuine higher-order evidence in favor of their claims. When that higher-order evidence would be misleading, we may reasonably believe it should not be generated. (shrink)

The question of the psychopath's responsibility for his or her wrongdoing has received considerable attention. Much of this attention has been directed toward whether psychopaths are a counterexample to motivational internalism (MI): Do they possess normal moral beliefs, which fail to motivate them? In this paper, I argue that this is a question that remains conceptually and empirically intractable, and that we ought to settle the psychopath's responsibility in some other way. I argue that recent empirical work on the moral (...) judgments of psychopaths provides us with good reason to think that they are not fully responsible agents, because their actions cannot express the kinds of ill-will toward others that grounds attributions of distinctively moral responsibility. I defend this view against objections, especially those due to an influential account of moral responsibility that holds that moral knowledge is not necessary for responsibility. (shrink)

Midwest Studies In Philosophy, EarlyView.

It is sometimes objected that we cannot adopt skepticism about moral responsibility, because the criminal justice system plays an indispensable social function. In this paper, I examine the implications of moral responsibility skepticism for the punishment of those convicted of crime, with special attention to recent arguments by Saul Smilansky. Smilansky claims that the skeptic is committed to fully compensating the incarcerated for their detention, and that this compensation would both be too costly to be practical and would remove the (...) deterrent function from incarceration. I argue that the skeptic is not committed to full compensation of the offender, and that the costs of such compensation would in any case be far smaller than Smilansky thinks. In fact, I claim, the costs of the criminal justice system to which the skeptic is committed might be very much lower than the costs – economic, social and moral – we currently pay as a consequence of our system of punishment. (shrink)

It is universally accepted in bioethics that doctors and other medical professionals have an obligation to procure the informed consent of their patients. Informed consent is required because patients have the moral right to autonomy in furthering the pursuit of their most important goals. In the present work, it is argued that evidence from psychology shows that human beings are subject to a number of biases and limitations as reasoners, which can be expected to lower the quality of their decisions (...) and which therefore make it more difficult for them to pursue their most important goals by giving informed consent. It is further argued that patient autonomy is best promoted by constraining the informed consent procedure. By limiting the degree of freedom patients have to choose, the good that informed consent is supposed to protect can be promoted. (shrink)

Accounts of moral responsibility can be divided into those that claim that attributability of an act, omission, or attitude to an agent is sufficient for responsibility for it, and those which hold that responsibility depends crucially on choice. I argue that accounts of the first, attributionist, kind fail to make room for the relatively stringent epistemic conditions upon moral responsibility, and that therefore an account of the second, volitionist, kind ought to be preferred. I examine the various arguments advanced on (...) behalf of attributionist accounts, and argue that for each of them volitionism has a reply that is in every case at least as, and often more, persuasive. Most significantly, only volitionism can accommodate the intuitively important distinction between the bad and the blameworthy. (shrink)

Several ethicists have argued that research trials and treatment programs that involve the provision of drugs to addicts are prima facie unethical, because addicts can’t refuse the offer of drugs and therefore can’t give informed consent to participation. In response, several people have pointed out that addiction does not cause a compulsion to use drugs. However, since we know that addiction impairs autonomy, this response is inadequate. In this paper, I advance a stronger defense of the capacity of addicts to (...) participate in the programs envisaged. I argue that it is only in certain circumstances that addicts find themselves choosing in ways that conflict with their genuine preferences. Research and treatment programs have none of the features that characterize choices in these autonomy-undermining circumstances, and there is therefore no reason to think that addicts lack the capacity to give informed consent to these programs. (shrink)

Seasonal influenza kills many hundreds of thousands of people every year. We argue that the current pandemic has lessons we should learn concerning how we should respond to it. Our response to the COVID-19 not only provides us with tools for confronting influenza; it also changes our sense of what is possible. The recognition of how dramatic policy responses to COVID-19 were and how widespread their general acceptance has been allowed us to imagine new and more sweeping responses to influenza. (...) In fact, we not only can grasp how we can reduce its toll; this new knowledge entails new responsibilities to do so. We outline a range of potential interventions to alter social norms and to change structures to reduce influenza transmission, and consider ethical objections to our proposals. (shrink)

Most philosophers think that phenomenal consciousness underlies, or at any rate makes a large contribution, to moral considerability. This paper argues that many such accounts invoke question-begging arguments. Moreover, they’re unable to explain apparent differences in moral status across and within different species. In the light of these problems, I argue that we ought to take very seriously a view according to which moral considerability is grounded in functional properties. Phenomenal consciousness may be sufficient for having a moral value, but (...) it may not be necessary, and it may contribute relatively little to our overall considerability. (shrink)

Governments, physicians, media and academics have all called for individuals to bear responsibility for their own health. In this article, I argue that requiring those with adverse health outcomes to bear responsibility for these outcomes is a bad basis for policy. The available evidence strongly suggests that the capacities for responsible choice, and the circumstances in which these capacities are exercised, are distributed alongside the kinds of goods we usually talk about in discussing distributive justice, and this distribution significantly explains (...) why people make bad health choices. These facts suggest that we cannot justifiably hold them responsible for these choices. We do better to hold responsible those who determine the ways in which capacities and circumstances are distributed: they are indirectly responsible for these adverse health outcomes and possess the capacities and resources to take responsibility for these facts. (shrink)

Recently, various philosophers have argued that we can obtain knowledge via the imagination. In particular, it has been suggested that we can come to know concrete, empirical matters of everyday significance by appropriately imagining relevant scenarios. Arguments for this thesis come in two main varieties: black box reliability arguments and constraints-based arguments. We suggest that both strategies are unsuccessful. Against black-box arguments, we point to evidence from empirical psychology, question a central case-study, and raise concerns about a (claimed) evolutionary rationale (...) for the imagination's reliability. Against the constraints-based account, we argue that to the extent that it works, this does not give rise to knowledge that is distinctively from the imagination. We conclude by suggesting that the imagination's role in raising possibilities, traditionally seen as part of the context of discovery, can in fact play a role in justification, including as a bulwark against certain sorts of skepticism. (shrink)

Abstract The typical explanation of an event or process which attracts the label ‘conspiracy theory’ is an explanation that conflicts with the account advanced by the relevant epistemic authorities. I argue that both for the layperson and for the intellectual, it is almost never rational to accept such a conspiracy theory. Knowledge is not merely shallowly social, in the manner recognized by social epistemology, it is also constitutively social: many kinds of knowledge only become accessible thanks to the agent's embedding (...) in an environment that includes other epistemic agents. Moreover, advances in knowledge typically require ongoing immersion in this social environment. But the intellectual who embraces a conspiracy theory risks cutting herself off from this environment, and therefore epistemically disabling herself. Embracing a conspiracy theory therefore places at risk the ability to engage in genuine enquiry, including the enquiry needed properly to evaluate the conspiracy theory. (shrink)

The aim of this article is to argue, by example, for neuroethics as a new way of doing ethics. Rather than simply giving us a new subject matter—the ethical issues arising from neuroscience—to attend to, neuroethics offers us the opportunity to refine the tools we use. Ethicists often need to appeal to the intuitions provoked by consideration of cases to evaluate the permissibility of types of actions; data from the sciences of the mind give us reason to believe that some (...) of these intuitions are less reliable than others. I focus on the doctrine of double effect to illustrate my case, arguing that experimental results suggest that appeal to it might be question-begging. The doctrine of double effect is supposed to show that there is a moral difference between effects that are brought about intentionally and those that are merely foreseen; I argue that the data suggest that we regard some effects as merely foreseen only because we regard bringing them about as permissible. Appeal to the doctrine of double effect therefore cannot establish that there are such moral differences. (shrink)

In this article we survey six recent developments in the philosophical literature on free will and moral responsibility: (1) Harry Frankfurt's argument that moral responsibility does not require the freedom to do otherwise; (2) the heightened focus upon the source of free actions; (3) the debate over whether moral responsibility is an essentially historical concept; (4) recent compatibilist attempts to resurrect the thesis that moral responsibility requires the freedom to do otherwise; (5) the role of the control condition in free (...) will and moral responsibility, and finally (6) the debate centering on luck. (shrink)

The extended mind thesis is the claim that mental states extend beyond the skulls of the agents whose states they are. This seemingly obscure and bizarre claim has far-reaching implications for neuroethics, I argue. In the first half of this article, I sketch the extended mind thesis and defend it against criticisms. In the second half, I turn to its neuroethical implications. I argue that the extended mind thesis entails the falsity of the claim that interventions into the brain are (...) especially problematic just because they are internal interventions, but that many objections to such interventions rely, at least in part, on this claim. Further, I argue that the thesis alters the focus of neuroethics, away from the question of whether we ought to allow interventions into the mind, and toward the question of which interventions we ought to allow and under what conditions. The extended mind thesis dramatically expands the scope of neuroethics: because interventions into the environment of agents can count as interventions into their minds, decisions concerning such interventions become questions for neuroethics. (shrink)

Cent ans après sa parution, il est possible de lire le livre de Bergson sur la relativité de façon moins polémique qu’à l’époque. La maturation et la stabilisation de la théorie d’Einstein, devenue une composante banale de l’arsenal des physiciens, permettent une évaluation précise des méprises commises par Bergson dans son exégèse, en même temps qu’elles amènent à reconnaître leur intérêt épistémologique. Nous entendons ici réfléchir sur cette lecture bergsonienne de la Rélativité einsteinienne.

Evolutionary debunking arguments appeal to selective etiologies of human morality in an attempt to undermine moral realism. But is morality actually the product of evolution by natural selection? Although debunking arguments have attracted considerable attention in recent years, little of it has been devoted to whether the underlying evolutionary assumptions are credible. In this paper, we take a closer look at the evolutionary hypotheses put forward by two leading debunkers, namely Sharon Street and Richard Joyce. We raise a battery of (...) considerations, both empirical and theoretical, that combine to cast doubt on the plausibility of both hypotheses. We also suggest that it is unlikely that there is in the vicinity a plausible alternative hypothesis suitable for the debunker’s cause. (shrink)

Human beings are subject to a range of cognitive and affective limitations which interfere with our ability to pursue our individual and social goals. I argue that shaping our environment to avoid triggering these limitations or to constrain the harms they cause is likely to be more effective than genetic or pharmaceutical modifications of our capacities because our limitations are often the flip side of beneficial dispositions and because available enhancements seem to impose significant costs. I argue that carefully selected (...) environmental interventions respect agents’ autonomy and are consistent with democratic decision making. (shrink)

According to one influential view, advanced by Jonathan Adler, David Owens and Susan Hurley, epistemic akrasia is impossible because when we form a full belief, any apparent evidence against that belief loses its power over us. Thus theoretical reasoning is quite unlike practical reasoning, in that in the latter our desires continue to exert a pull, even when they are outweighed by countervailing considerations. I call this argument against the possibility of epistemic akrasia the subsumption view. The subsumption view accurately (...) reflects the nature of reasoning in a range of everyday cases. But, as I show, it is quite false with regard to controversial questions, like philosophical disputes. In these, evidence against our best judgments continues to exert a hold on us. Thus, the claimed disanalogy between practical and theoretical reasoning fails. (shrink)

De quelqu'un qui supporte la douleur avec courage, on dit qu'il fait preuve de stoïcisme. Un bon vivant est souvent qualifié d'épicurien, et notre époque se voit parfois reprocher son scepticisme. Le langage courant conserve ainsi comme un écho lointain et déformé des doctrines philosophiques hellénistiques, celles apparues après qu'Alexandre eut imposé son pouvoir à une grande partie du monde. Longtemps ces systèmes, dont l'influence sur la pensée philosophique et religieuse de l'Occident fut en réalité immense, ont été considérés comme (...) le parent pauvre de la philosophie ancienne, parce que l'injustice de la transmission des œuvres du passé a fait que nous ne possédons que des témoignages lacunaires ou tardifs. Mais dans ces dernières décennies le scepticisme, l'épicurisme et le stoïcisme ont suscité un vif intérêt, qui s'est traduit par la publication d'un grand nombre d'éditions et de recherches. Il n'est pas excessif de dire que l'image de la philosophie hellénistique en a été ainsi considérablement renouvelée. Cet ouvrage a pour finalité de présenter le plus clairement possible des doctrines que l'on aurait pu croire réservées à quelques spécialistes et qui, au fur et à mesure que nous les connaissons mieux, apparaissent de plus en plus proches des inquiétudes et des espoirs des hommes de notre temps. (shrink)

So-called downshifters seek more meaningful lives by decreasing the amount of time they devote to work, leaving more time for the valuable goods of friendship, family and personal development. But though these are indeed meaning-conferring activities, they do not have the right structure to count as superlatively meaningful. Only in work – of a certain kind – can superlative meaning be found. It is by active engagements in projects, which are activities of the right structure, dedicated to the achievement of (...) goods beyond ourselves, that we make our lives superlatively meaningful. (shrink)

Euclid's Elements were translated into Hebrew from Arabic in the 13th century; but precious few of the Arabic commentaries have come down to us in a Hebrew version. Nonetheless, a study of several texts dealing with the Fifth Postulate of Book I reveals that the Hebrew authors are greatly indebted to Arabic sources.