Increasingly complex and autonomous systems require machine ethics to maximize the benefits and minimize the risks to society arising from the new technology. It is challenging to decide which type of ethical theory to employ and how to implement it effectively. This survey provides a threefold contribution. First, it introduces a trimorphic taxonomy to analyze machine ethics implementations with respect to their object (ethical theories), as well as their nontechnical and technical aspects. Second, an exhaustive selection and description of relevant (...) works is presented. Third, applying the new taxonomy to the selected works, dominant research patterns, and lessons for the field are identified, and future directions for research are suggested. (shrink)

Some authors have called for increased research on various forms of geoengineering as a means to address global climate change. This paper focuses on the question of whether a particular form of geoengineering, namely deploying sulfate aerosols in the stratosphere to counteract some of the effects of increased greenhouse gas concentrations, would be a just response to climate change. In particular, we examine problems sulfate aerosol geoengineering (SAG) faces in meeting the requirements of distributive, intergenerational, and procedural justice. We argue (...) that SAG faces obstacles to meeting the requirements of all three considered kinds of justice, because its impacts can harm some persons and communities much more than others; it poses serious risks to future generations; and SAG is especially prone to unilateral implementation. While we do not claim that SAG ought not to be implemented, we argue that it is the responsibility of proponents of SAG to recognize and address these ethical obstacles before advocating its implementation. (shrink)

I argue that in the Phaedo, Plato maintains that the soul is located in space and is capable of locomotion and of interacting with the body through contact. Numerous interpreters have dismissed these claims as merely metaphorical, since they assume that as an incorporeal substance, the soul cannot possess spatial attributes. But careful examination of how Plato conceives of the body throughout his corpus reveals that he does not distinguish it from the soul in terms of spatiality. Furthermore, assigning spatial (...) attributes to the soul plays an important role in Plato’s account of the relation of body and soul. (shrink)

The Council of Europe’s 2008 White Paper on Intercultural Dialogue: ‘living together as equals in dignity’ points to the need for shared values upon which intercultural dialogue might rest. In order, however, to overcome the monologic separateness that threatens community, we must educate ourselves to recognize the dialogism of our humanity and to engage in deep encounters with others with a mature skepticism of all dogmatisms, including our own. In order to aid us in reaching the necessary insight, the author (...) calls upon Bakhtin’s ideas of the dialogism of every utterance and of the unity and heteroglossia of language, Gadamer’s hermeneutical experience that shakes us loose from what we think we know, and Levinas’s description of that transcendent ideal of a dialogue beyond reciprocity. These perspectives break open our certainty that tribalism and individualism are fundamental, placing them instead as secondary phenomena that, though powerful, pronounce neither the initial nor the final word on our life together. (shrink)

This paper analyzes the apraxia argument in Cicero’s Academica. It proposes that the argument assumes two modes: the evidential mode maintains that skepticism is false, while the pragmatic claims that it is disadvantageous. The paper then develops a tension between the two modes, and concludes by exploring some differences between ancient and contemporary skepticism.

The Theistic Argument from Intentionality (TAI) is a venerable argument for the existence of God from the existence of eternal truths. The argument relies, inter alia, on the premises that (i) truth requires representation, and that (ii) non-derivative representation is a function of, and only of, minds. If propositions are the fundamental bearers of truth and falsity, then these premises entail that propositions (or at least their representational properties) depend on minds. Although it is widely thought that psychologism—the view that (...) the fundamental truth-bearers are mind-dependent—was refuted by Frege, a psychologistic view of propositions has been undergoing a revival. However, this new psychologism suffers from a problem of scarcity—finite minds cannot generate enough thoughts to play the role of fundamental truth-bearers. This objection paves the way for a revised version of the TAI: only an infinite mind can furnish enough thoughts to play the role of propositions. (shrink)

While artificial intelligence (AI) is increasingly applied for decision-making processes, ethical decisions pose challenges for AI applications. Given that humans cannot always agree on the right thing to do, how would ethical decision-making by AI systems be perceived and how would responsibility be ascribed in human-AI collaboration? In this study, we investigate how the expert type (human vs. AI) and level of expert autonomy (adviser vs. decider) influence trust, perceived responsibility, and reliance. We find that participants consider humans to be (...) more morally trustworthy but less capable than their AI equivalent. This shows in participants’ reliance on AI: AI recommendations and decisions are accepted more often than the human expert’s. However, AI team experts are perceived to be less responsible than humans, while programmers and sellers of AI systems are deemed partially responsible instead. (shrink)

I will present and criticise the two theories of truthmaking David Armstrong offers us in Truth and Truthmakers (Armstrong 2004), show to what extent they are incompatible and identify troublemakers for both of them, a notorious – Factualism, the view that the world is a world of states of affairs – and a more recent one – the view that every predication is necessary. Factualism, combined with truthmaker necessitarianism – ‘truthmaking is necessitation’ – leads Armstrong to an all-embracing totality state (...) of affairs that necessitates not only everything that is the case but also everything else – that which is not the case, that which is merely possible or even impossible. All the things so dear to realists – rocks, natural properties, real persons – become mere abstractions from this ontological monster. The view that every predication is necessary does in some sense the opposite: it does away with totality states of affairs and, arguably, also with states of affairs. We have particulars and universals, partially identical and necessarily connected to everything else. Just by the existence of anything, everything is necessitated – the whole world mirrored in every monad. Faced with the choice between these two equally unappealing alternatives, I suggest returning to Armstrong’s more empiricist past: the world is not an all-inclusive One, nor necessitated by every single particular and every single universal, but a plurality of particulars and universals, interconnected by a contingent and internal relation of exemplification. While a close variant, truthmaker essentialism, can perhaps be saved, this means giving up on truthmaker necessitarianism. This, I think, what it takes to steer a clear empiricist course between the Scylla of Spinozist general factness and the Charybdis of a Leibnizian overdose of brute necessities. (shrink)

Accelerating global climate change drives new climate risks. People around the world are researching, designing, and implementing strategies to manage these risks. Identifying and implementing sound climate risk management strategies poses nontrivial challenges including (a) linking the required disciplines, (b) identifying relevant values and objectives, (c) identifying and quantifying important uncertainties, (d) resolving interactions between decision levers and the system dynamics, (e) quantifying the trade-offs between diverse values under deep and dynamic uncertainties, (f) communicating to inform decisions, and (g) learning (...) from the decision-making needs to inform research design. Here we review these challenges and avenues to overcome them. ▪ People and institutions are confronted with emerging and dynamic climate risks. ▪ Stakeholder values are central to defining the decision problem. ▪ Mission-oriented basic research helps to improve the design of climate risk management strategies. (shrink)

Reasons-first theorists claim that facts about reasons for attitudes are normatively primitive, and that all other normative facts ultimately reduce to facts about reasons. According to their view, for example, the fact that something is good ultimately reduces to facts about reasons to favour it. I argue that these theories face a challenging dilemma due to the normativity of arational lifeforms, for instance the fact that water is good for plants. If all normative facts are, ultimately, facts about reasons for (...) attitudes, then reasons-first theorists must either (a) show that these facts do reduce to facts about reasons, or (b) concede that they do not and, instead, show that this is not a problem for their view. Both options, however, are riddled with difficulties—or so I will try to argue. (shrink)

It is true of many truths that I do not believe them. It is equally true, however, that I cannot rationally assert of any such truth both that it is true and that I do not believe it. To explain why this is so, I will distinguish absence of belief from disbelief and argue that an assertion of “p, but I do not believe that p” is paradoxical because it is indefensible, i.e. for reasons internal to it unable to convince. (...) A closer examination of the irrationality involved will show that such is the skeptic’s predicament, trying to convince us to bracket knowledge claims we have good grounds to take ourselves to be entitled to. Even if the sceptic cannot be proven wrong, his challenge still demands an answer, if not a treatment. In this paper, I argue that the cure lies in epidemiology rather than epistemology: instead of attacking the sceptic head-long, I commend guerilla tactics, vaccinating our fellow non-sceptics against the sceptical virus. I will not argue that the sceptic is wrong, necessarily wrong or that he cannot be believed, but that he cannot convince. Scepticism requires a leap of faith: something we may justifiably refrain from even on the sceptic’s own standards. (shrink)

In this paper, I offer a new interpretation of Aristophanes’ speech in Plato’s Symposium. Though Plato deliberately draws attention to the significance of Aristophanes’ speech in relation to Diotima’s (205d-206a, 211d), it has received relatively little philosophical attention. Critics who discuss it typically treat it as a comic fable, of little philosophical merit (e.g. Guthrie 1975, Rowe 1998), or uncover in it an appealing and even romantic treatment of love that emphasizes the significance of human individuals as love-objects to be (...) valued for their own sakes (e.g. Dover 1966, Nussbaum 1986). Against the first set of interpreters, I maintain that Aristophanes’ speech is of the utmost philosophical significance to the dialogue; in it, he sets forth a view of eros as a state of lack and a corresponding desire for completion, which is the starting-point for Diotima’s subsequent analysis. Against the second, I argue that Aristophanes’ speech contains a profoundly pessimistic account of eros. Far from being an appreciative response to the individuality of the beloved, eros, for Aristophanes, is an irrational urge, incapable of satisfaction. It is this irrationality that precludes Aristophanes’ lovers from achieving the partial satisfaction of erotic desire that is open to their Socratic counterparts through their relationship to the forms. (shrink)

One of the ways in which Plato has captured the popular imagination is with the claim that the philosopher can feel erôs, passionate love, for the objects of knowledge. Why should Plato make this claim? In this chapter, I explore Plato’s treatment of philosophical erôs along three dimensions. First, I consider the source of philosophical erôs. I argue that it is grounded in our mortality and imperfection, which give rise to a desire for immortality and the immortal. Second, I turn (...) to the object of philosophical erôs. I suggest that it is an arresting response to beauty, through which we come to value the ideal properties of the forms. Finally, I address the nature of erôs. I claim that it is a focusing desire, that overrides other concerns and causes us to overwhelmingly focus on its object. I conclude the chapter by considering the problem Vlastos famously raises for Plato’s account of erôs: can it do justice to disinterested, interpersonal love? In agreement with Vlastos, I claim that one who comes to grasp the forms will cease to feel interpersonal love; however, I also suggest that erôs can give rise to philia, beneficent concern with the wellbeing of others. (shrink)

Although vision is the de facto model system of consciousness research, studying olfactory consciousness has its own advantages, as this collection of articles emphatically demonstrates. One advantage of olfaction is its computational and phenomenological simplicity, which facilitates the identification of basic principles. Other researchers study olfactory consciousness not because of its simplicity, but because of its unique features. Together, olfaction's simplicity and its distinctiveness make it an ideal system for testing theories of consciousness. In this research topic, the results of (...) recent research into olfactory consciousness are presented. (shrink)

In a recent piece, Jon Bebb (2023) has argued that we have no reason to believe, contrary to what is often assumed, that ‘normal’ is ambiguous between a statistical and a normative sense. I argue that his case rests on two false premisses, and that we have very good reasons to believe that ‘normal’ is, in fact, ambiguous in this way. As part of my argument, I will go on to suggest that if ‘normal’ is ambiguous between a statistical and (...) a normative sense, that is because of the deep but seldom recognised connection between regularities and rules. This suggestion, if correct, will in turn help us elucidate three familiar thoughts about normality. (shrink)

In the Protagoras, Socrates argues that what appears to be akrasia is, in fact, the result of a hedonic illusion: proximate pleasures appear greater than distant ones. On the face of it, his account is puzzling: why should proximate pleasures appear greater than distant ones? Certain interpreters argue that Socrates must be assuming the existence of non-rational desires that cause proximate pleasures to appear inflated. In this paper, I argue that positing non-rational desires fails to explain the hedonic error. However, (...) careful consideration of Socrates’ treatment of appearances reveals that he is not without resources to explain the illusion. I argue that in the Protagoras, appearances are imagistic mental representations that appear true but tend to be false. I suggest that proximate pleasures produce inflated hedonic predictions because we represent them more vividly than distant ones, yielding greater anticipatory pleasure which causes us to overestimate their magnitude. (shrink)

This paper defends an intellectualist interpretation of Diotima’s speech in Plato’s Symposium. I argue that Diotima’s purpose, in discussing the lower lovers, is to critique their erōs as aimed at a goal it can never secure, immortality, and as focused on an inferior object, themselves. By contrast, in loving the form of beauty, the philosopher gains a mortal sort of completion; in turning outside of himself, he also ceases to be preoccupied by his own incompleteness.

In this chapter, I offer an overview of current scholarly debates on Plato's Lysis. I also argue for my own interpretation of the dialogue. In the Lysis, Socrates argues that all love is motivated by the desire for one’s own good. This conclusion has struck many interpreters as unattractive, so much so that some attempt to reinterpret the dialogue, such that it either does not offer an account of interpersonal love, or that it offers an account on which love is, (...) in fact, an other-regarding state. Others, notably Vlastos, criticize Socrates’ theory as implausibly and repellently egoistic. I maintain, against the first group, that Socrates is indeed offering an egoistic theory of love. I argue, against the second, that, while Socrates’ theory may be repellent, it possesses considerable explanatory power and avoids certain weaknesses which infect contemporary approaches to love. (shrink)

According to Plato's successors, assimilation to god (homoiosis theoi) was the end (telos) of the Platonic system. There is ample evidence to support this claim in dialogues ranging from the Symposium through the Timaeus. However, the Philebus poses a puzzle for this conception of the Platonic telos. On the one hand, Plato states that the gods are beings beyond pleasure while, on the other hand, he argues that the best human life necessarily involves pleasure. In this paper, I argue that (...) the solution to this puzzle lies in the fact that the processes by which we assimilate to god, learning and becoming virtuous, are restitutive and hence pleasant. Thus, the reason why the best human life necessarily involves pleasure is that we can never become fully divine and perfect, but must constantly strive to become like the divine, through pleasureful restitutive processes. In this paper, I also provide a close examination and taxonomy of the different models that Plato presents throughout his corpus of assimilation to god. -/- Note: "Fleeing the Divine" (Philebus: Selected Papers from the VIII Symposium Platonicum) is an earlier, shorter version of this paper. (shrink)

God is typically conceived as perfectly good and necessarily so, in two senses: in terms of always performing the best possible act and in terms of having maximal moral worth. Yet any being that freely performs the best act she can must be accorded greater moral worth for any such action than a being that does so necessarily. I conclude that any being that performs the best possible act of necessity cannot also have maximal moral worth, making the concept of (...) God’s perfect goodness incoherent. (shrink)

In this paper, I explore parallels between philosophical and tyrannical eros in Plato's Republic. I argue that in arguing that reason experiences eros for the forms, Plato introduces significant tensions into his moral psychology.

In this chapter, I offer an overview of current scholarly debates on Plato's Lysis. I also argue for my own interpretation of the dialogue. In the Lysis, Socrates argues that all love is motivated by the desire for one’s own good. This conclusion has struck many interpreters as unattractive, so much so that some attempt to reinterpret the dialogue, such that it either does not offer an account of interpersonal love, or that it offers an account on which love is, (...) in fact, an other-regarding state. Others, notably Vlastos, criticize Socrates’ theory as implausibly and repellently egoistic. I maintain, against the first group, that Socrates is indeed offering an egoistic theory of love. I argue, against the second, that, while Socrates’ theory may be repellent, it possesses considerable explanatory power and avoids certain weaknesses which infect contemporary approaches to love. (shrink)

Note: "Next to Godliness" (Apeiron) is an expanded version of this paper. -/- According to Plato's successors, assimilation to god (homoiosis theoi) was the end (telos) of the Platonic system. There is ample evidence to support this claim in dialogues ranging from the Symposium through the Timaeus. However, the Philebus poses a puzzle for this conception of the Platonic telos. On the one hand, Plato states that the gods are beings beyond pleasure while, on the other hand, he argues that (...) the best human life necessarily involves pleasure. In this paper, I argue that the solution to this puzzle lies in the fact that the processes by which we assimilate to god, learning and becoming virtuous, are restitutive and hence pleasant. Thus, the reason why the best human life necessarily involves pleasure is that we can never become fully divine and perfect, but must constantly strive to become like the divine, through pleasureful restitutive processes. In this paper, I also provide a close examination and taxonomy of the different models that Plato presents throughout his corpus of assimilation to god. (shrink)

In her article, "Thinking and Moral Considerations," Hannah Arendt provides a provocative approach to the question of evil by suggesting that banal evil-the most common kind-may arise directly from thoughtlessness. If that is so, thinking may provide an antidote to evil. Learning to think would then offer the individual and society protection against the dangers of thoughtless evil. She further suggests that thinking may clear the way for a form of judging that "when the chips are down" may turn people (...) toward right rather than wrong, beauty rather than ugliness. In this essay I address her claim by noting an example of apparently thoughtless evil, the murder of Duncan by Macbeth, and by showing how this event clarifies Arendt's thesis, including both its weaknesses and its strengths. The use of Macbeth will amount to a sketch of certain features of the play particularly relevant to this ethical issue, followed by an analysis of ways Arendt's thesis connects with the murder of Duncan. (shrink)

In dialogues ranging from the Symposium to the Timaeus, Plato appears to propose that the philosopher’s grasp of the forms may confer immortality upon him. Whatever can Plato mean in making such a claim? What does he take immortality to consist in, such that it could constitute a reward for philosophical enlightenment? And how is this proposal compatible with Plato’s insistence throughout his corpus that all soul, not just philosophical soul, is immortal? In this chapter, I pursue these questions by (...) applying the distinction between general and earned immortality to the Phaedo and the Symposium. I argue that, while Plato attributes general immortality to all soul in the Phaedo, in the Affinity Argument, he proposes that the philosopher’s soul can achieve earned immortality through contemplating forms. It is this form of immortality that Plato claims is unavailable to humankind in the flux passage of the Symposium. At the same time, in the ascent passage, he holds out the possibility – albeit with significant reservations – that the philosopher’s soul may transcend its humanity and achieve earned immortality through its communion with the form. (shrink)

We present a unified diagnosis of three well-known puzzles about proper names, based on a new view of the metaphysics of words and proper names in particular adumbrated by David Kaplan in “Words”. While our solution comes at some metaphysical price, we think it is worth being considered a serious contender and may illustrate the promise of taking more seriously the metaphysical foundations of our semantic theories.

Notions of agency and of weakness of will clearly seem to be related to one another. This essay takes on a rather modest task in relation to current discussion of these topics; it seeks to establish the following claim: If A is a normal human agent, weakness of will is possible for A. The argument relies on demonstrating that certain necessary conditions for normal human agency are at least roughly equivalent to certain sufficient conditions for weakness of will. The connection (...) between agency and weakness of will is made through the use of an extended example that lays bare the links between the two. (shrink)

I reassess the famous arguments of Frank Plumpton Ramsey (1925) against the tenability of the distinction between particulars and universals and discuss their recent elaboration by Fraser MacBride. I argue that Ramsey’s argument is ambiguous between kinds and properties and that his sceptical worries can be resolved once this distinction is taken into account. A crucial role in this dissolution is a notion of what is essential to a property. I close by some epistemological considerations.

The principle of assistance says that the global rich should help the global poor because they are able to do so, and at little cost. The principle of contribution says that the rich should help the poor because the rich are partly to blame for the plight of the poor. This paper explores the relationship between the two principles and offers support for one version of the principle of assistance. The principle of assistance is most plausible, the paper argues, when (...) formulated so as to identify obligations that arise from the needs of particular identifiable members of the global poor, not from impersonal rules or values. Under that formulation, the principle can explain why knowledge of the circumstances faced by individual members of the global poor can have such a marked effect upon the willingness of the global rich to provide help, and can offer a better grounded motivational basis for helping the global poor. These are real advantages, the paper argues, and ones that cannot be matched by stories that focus upon the ways in which the global rich contribute to global poverty. (shrink)

For computer simulation models to usefully inform climate risk management, uncertainties in model projections must be explored and characterized. Because doing so requires running the model many ti...

This chapter examines Plato's moral psychology in the Phaedrus. It argues against interpreters such as Burnyeat and Nussbaum that Plato's treatment of the soul is increasingly pessimistic: reason's desire to contemplate is at odds with its obligation to rule the soul, and psychic harmony can only be secured by violently suppressing the lower parts of the soul.

Introduction to a volume on Hegel, asking why his thought continues to be relevant today.

This paper consists of a conversation between a philosopher specialising in ethics and religion and an educational researcher with an interest in cultural studies and contemporary social theory. Dialogic in form, this paper employs an interdisciplinary response to an interdisciplinary project and offers the following components: a dialogic theorizing of the implications for education of a research project on spiritual capital; a continuation of the project of analyzing moral thinking in various cultural and societal settings; a continuation of the project (...) of analyzing political rhetoric (towards an understanding of the polemics of political rhetoric); a reaffirmation of the value of recognizing difference and ambiguity in the global moment. (shrink)

Les Cahiers noirs de Heidegger permettent d’éclairer l’importance chez les épigones de Heidegger des malentendus concernant le langage ainsi que le statut et les objectifs de la philosophie du Maître. Les Cahiers apportent une confirmation de l’utilisation systématique par leur auteur d’une stratégie d’égarement, celle-ci comportant deux aspects majeurs. D’une part, le message heideggérien s’adresse à un « petit nombre » de lecteurs ou auditeurs et non pas aux hommes en général. La pensée de l’Être est en effet conçue comme (...) combat contre la rationalité comme faculté et valeur universelle, la communication devant dès lors se faire intentionnellement ambiguë. D’autre part, suivre la voix de l’Être ne relève pas de l’émancipation humaine mais d’un processus d’« éveil » tribal. (shrink)

Wars and crises worldwide force millions of people to flee and seek refuge, often outside their countries of origin. What moral responsibilities do states have towards refugees? In this Ethical Annotation, Dr Jos Philips and his co-authors zoom in on the responsibilities of EU countries. They consider arguments in favour of and against admitting refugees and argue that EU countries must do at least at much as they can do at little cost, and perhaps even more.