While the view that we perceive aesthetic properties may seem intuitive, it has received little in the way of explicit defence. It also gives rise to a puzzle. The first strand of this puzzle is that we often cannot perceive aesthetic properties of artworks without training, yet much aesthetic training involves the acquisition of knowledge, such as when an artwork was made, and by whom. How, if at all, can this knowledge affect our perception of an artwork’s aesthetic properties? The (...) second strand of the puzzle arises when we widen the scope of aesthetic experience. The very same aesthetic properties that seem to require training for their perception in artworks do not appear to require training to perceive in objects of everyday aesthetic appreciation and natural phenomena. In this paper I argue that a prominent extant attempt to explain how training is compatible with aesthetic perception—cognitive permeation—is an inadequate solution. I also develop a positive view of aesthetic perception that provides a unified solution to both strands of the puzzle. (shrink)

Everyday reasoning requires more evidence than raw data alone can provide. We explore the idea that people can go beyond this data by reasoning about how the data was sampled. This idea is investigated through an examination of premise non-monotonicity, in which adding premises to a category-based argument weakens rather than strengthens it. Relevance theories explain this phenomenon in terms of people's sensitivity to the relationships among premise items. We show that a Bayesian model of category-based induction taking premise sampling (...) assumptions and category similarity into account complements such theories and yields two important predictions: First, that sensitivity to premise relationships can be violated by inducing a weak sampling assumption; and second, that premise monotonicity should be restored as a result. We test these predictions with an experiment that manipulates people's assumptions in this regard, showing that people draw qualitatively different conclusions in each case. (shrink)

Does the scope of beliefs that people can form on the basis of perception remain fixed, or can it be amplified with learning? The answer to this question is important for our understanding of why and when we ought to trust experts, and also for assessing the plausibility of epistemic foundationalism. The empirical study of perceptual expertise suggests that experts can indeed enrich their perceptual experiences through learning. Yet this does not settle the epistemic status of their beliefs. One might (...) hold that the background knowledge of experts is the cause of their enriched perceptual experience – what is known as cognitive permeation – and so their subsequent beliefs are only mediately justified because they are epistemically dependent on this background knowledge. I argue against this view. Perceptual expertise is not the result of cognitive permeation but is rather the result of perceptual learning, and perceptual learning does not involve cognition in a way that entails cognitive permeation. Perceptual expertise thus provides a means of widening the scope of the immediately justified beliefs that experts can form. (shrink)

Agrifood scholars have long called for changes to the dominant food system, with the goal of making food systems more sustainable and just. This paper focuses on the ways in which recent and future food system shocks provide an opportunity for sustainable transitions in the food system. However, this requires strategic engagement on the part of alternative agrifood initiatives—agrifood niches—otherwise food systems are likely to return to business as usual. Drawing on the multi-level perspective (MLP) within the sustainability transitions framework, (...) core themes that emerge from social science studies of disasters in agrifood systems are identified. These are summarized as resources, polices, and practices that can assist niches in transforming agrifood regimes in response to disasters. The results highlight that while niches are generally independent of governments, niches would be better positioned to engage in post disaster agrifood change if they have some pre-existing connections with local or regional governments. (shrink)

Kendall Walton’s project in ‘Categories of Art’ (1970) is to answer two questions. First, does the history of an artwork’s production determine its aesthetic properties? Second, how – if at all – should knowledge of the history of a work’s production influence our aesthetic judgments of its properties? While his answer to the first has been clearly understood, his answer to the second less so. Contrary to how many have interpreted Walton, such knowledge is not necessary for making aesthetic judgments; (...) perceiving an artwork as belonging to a (correct) category of art requires no art-historical knowledge whatsoever. Moreover, contextualist attempts to incorporate art-historical knowledge via the mechanism of cognitive penetration are incompatible with Walton’s claim that categories of art must be perceptually distinguishable. Here I propose a way of elaborating Walton’s view that avoids this difficulty and reconciles contextualism with aesthetic perception, the view that we perceive aesthetic properties. (shrink)

In this paper we argue that predictive processing (PP) theory cannot account for the phenomenon of affect-biased attention prioritized attention to stimuli that are affectively salient because of their associations with reward or punishment. Specifically, the PP hypothesis that selective attention can be analyzed in terms of the optimization of precision expectations cannot accommodate affect-biased attention; affectively salient stimuli can capture our attention even when precision expectations are low. We review the prospects of three recent attempts to accommodate affect with (...) tools internal to PP theory: Miller and Clark’s (2018) embodied inference; Seth’s (2013) interoceptive inference; and Joffily and Coricelli’s (2013) rate of change of free energy. In each case we argue that the account does not resolve the challenge from affect-biased attention. For this reason, we conclude that prediction error minimization is not sufficient to explain all mental phenomena, contrary to the claim that the PP framework provides a unified theory of all mental phenomena or the brain ‘s cognitive functioning. Nevertheless, we suggest that empirical investigation of the interaction between affective salience and precision expectations should prove helpful in understanding the limits of PP theory, and may provide new directions for the application of a Bayesian perspective to perception. (shrink)

Attempts to engineer a generally intelligent artificial agent have yet to meet with success, largely due to the (intercontext) frame problem. Given that humans are able to solve this problem on a daily basis, one strategy for making progress in AI is to look for disanalogies between humans and computers that might account for the difference. It has become popular to appeal to the emotions as the means by which the frame problem is solved in human agents. The purpose of (...) this paper is to evaluate the tenability of this proposal, with a primary focus on Dylan Evans’ search hypothesis and Antonio Damasio’s somatic marker hypothesis. I will argue that while the emotions plausibly help solve the intracontext frame problem, they do not function to solve or help solve the intercontext frame problem, as they are themselves subject to contextual variability. (shrink)

Perceptual learning is an enduring change in the perceptual system – and our resulting perceptions – due to practice or repeated exposure to a perceptual stimulus. It is involved in the acquisition of perceptual expertise: the ability to make rapid and reliable high-level categorizations of objects unavailable to novices. Attentional weighting is one process by which perceptual learning occurs. Advancing our understanding of this process is of particular importance for understanding what is learned in perceptual learning. Attentional weighting seems to (...) favour the hypothesis that what experts learn is simply to better direct their attention to elements of the stimulus relevant to making post-perceptual categorizations. Here I argue against this hypothesis. Attentional weighting is an integral component of the process that allows experts to come to represent high-level properties in perceptual experience. (shrink)

Perceptual learning is commonly understood as conferring some benefit to the learner, such as allowing for the extraction of more information from the environment. However, perceptual learning can be biased in several different ways, some of which do not appear to provide such a benefit. Here we outline a systematic framework for thinking about bias in perceptual learning and discuss how several cases fit into this framework. We argue these biases are compatible with an understanding in which perceptual learning is (...) beneficial, but that its benefits are tied to both a person's narrow interests and the training environment or domain, and so if there are changes to either of these, then benefits can turn into liabilities, though these are often temporary. (shrink)

Don Ihde and Lambros Malafouris (Philosophy and Technology 32:195–214, 2019) have argued that “we are homo faber not just because we make things but also because we are made by them.” The emphasis falls on the idea that the things that we create, use, rely on—that is, those things with which we engage—have a recursive effect on human existence. We make things, but we also make arrangements, many of which are long-standing, material, social, normative, economic, institutional, and/or political, and many (...) of which are supported by various technologies, including AI, more and more. Critical theorists, such as Habermas, have argued that we need a “depth” or critical hermeneutics (one that combines hermeneutical understanding with scientific explanation) to provide a full account of this kind of recursivity. For Habermas, the explanatory aspect of critical hermeneutics has been modeled on neo-Marxist and neo-Freudian theories. We propose a new critical hermeneutical approach that uses the tools of embodied cognitive science, affordance theory, material engagement theory, and the concept of the socially extended mind. (shrink)

Monte Johnson examines one of the most controversial aspects of Aristiotle's natural philosophy: his teleology. Is teleology about causation or explanation? Does it exclude or obviate mechanism, determinism, or materialism? Is it focused on the good of individual organisms, or is god or man the ultimate end of all processes and entities? Is teleology restricted to living things, or does it apply to the cosmos as a whole? Does it identify objectively existent causes in the world, or is it merely (...) a heuristic for our understanding of other causal processes? Johnson argues that Aristotle's aporetic approach drives a middle course between these traditional oppositions, and avoids the dilemma, frequently urged against teleology, between backwards causation and anthropomorphism. Although these issues have been debated with extraordinary depth by Aristotle scholars, and touched upon by many in the wider philosophical and scientific community as well, there has been no comprehensive historical treatment of the issue. Aristotle is commonly considered the inventor of teleology, although the precise term originated in the eighteenth century. But if teleology means the use of ends and goals in natural science, then Aristotle was rather a critical innovator of teleological explanation. Teleological notions were widespread among his predecessors, but Aristotle rejected their conception of extrinsic causes such as mind or god as the primary causes for natural things. Aristotle's radical alternative was to assert nature itself as an internal principle of change and an end, and his teleological explanations focus on the intrinsic ends of natural substances - those ends that benefit the natural thing itself. Aristotle's use of ends was subsequently conflated with incompatible 'teleological' notions, including proofs for the existence of a providential or designer god, vitalism and animism, opposition to mechanism and non-teleological causation, and anthropocentrism. Johnson addresses these misconceptions through an elaboration of Aristotle's methodological statements, as well as an examination of the explanations actually offered in the scientific works. Reviewed in: Notre Dame Philosophical Review 2006.06.15; Bryn Mawr Classical Review 2006.08.37; Il-Sole – 24 Ore 6 Aug. 2006; Philosophy in Review 26 (2006): 360-2; Rhizai 3 (2006): 171-8; Journal of the History of Philosophy 45 (2007): 323-4; Ancient Philosophy 27 (2007): 191-200; Phronesis 52 (2007): 248-9; Isis 98 (2007): 375; Aestimatio 4 (2007) 146-152; The British Journal for the History of Science 41 (2008): 129-130. The European Legacy 14 (2009); La Cultura 47 (2009): 174-175; Sean M. Row, Teleology in Political Contexts: an assessment of Monte Ransome Johnson’s “Aristotle on Teleology”. (A thesis presented to the faculty of the college of arts and sciences of Ohio University, 2009.). (shrink)

The acquaintance debate in aesthetics has been traditionally divided between pessimists, who argue that testimony does not provide others with aesthetic knowledge of artworks, and optimists, who hold that acquaintance with an artwork is not a necessary precondition for acquiring aesthetic knowledge. In this paper I propose a reconciliationist solution to the acquaintance debate: while aesthetic knowledge can be had via testimony, aesthetic judgment requires acquaintance with the artwork. I develop this solution by situating it within a virtue aesthetics framework (...) based on Ernest Sosa's virtue epistemology. I go on to apply the solution to the debates on moral testimony and expert testimony. An interesting variant on Gettier cases emerges: cases in which subjects have knowledge, but it has been formed by the wrong competence. (shrink)

The predictive coding (PC) theory of attention identifies attention with the optimization of the precision weighting of prediction error. Here we provide some challenges for this identification. On the one hand, the precision weighting of prediction error is too broad a phenomenon to be identified with attention because such weighting plays a central role in multimodal integration. Cases of crossmodal illusions such as the rubber hand illusion and the McGurk effect involve the differential precision weighting of prediction error, yet attention (...) does not shift as one would predict. On the other hand, the precision weighting of prediction error is too narrow a phenomenon to be identified with attention, because it cannot accommodate the full range of attentional phenomena. We review criticisms that PC cannot account for volitional attention and affect-biased attention, and we propose that it may not be able to account for feature-based and intellectual attention. (shrink)

It has recently become popular to suggest that cognition can be explained as a process of Bayesian prediction error minimization. Some advocates of this view propose that attention should be understood as the optimization of expected precisions in the prediction-error signal (Clark, 2013, 2016; Feldman & Friston, 2010; Hohwy, 2012, 2013). This proposal successfully accounts for several attention-related phenomena. We claim that it cannot account for all of them, since there are certain forms of voluntary attention that it cannot accommodate. (...) We therefore suggest that, although the theory of Bayesian prediction error minimization introduces some powerful tools for the explanation of mental phenomena, its advocates have been wrong to claim that Bayesian prediction error minimization is ‘all the brain ever does’. (shrink)

The artefactual environment is not just the passive, inert background against which the drama of human and non-human animal life plays out; but rather, the built environment plays an active role in the structure of agency. This is an insight that Lambros Malafouris has articulated in his framework of Material Engagement Theory. I will discuss the enactive-embodied and dynamic approaches to cognition and action, emphasizing the ways that this approach leads to taking MET seriously by force of its own theoretical (...) commitments. That is, material engagement is a natural development of these models of mind, specified to the particularities of the human historical situation. I will then discuss Theiner and Drain’s critique of HMA, in which they argue that we should replace material agency with materially-scaffolded agency. Scaffolded agency, however, is too weak of a conception of how material culture shapes agency, and is a notion continues to privilege the sense of agency as a mark of what genuinely constitutes agency proper. Drawing on Steward I propose a definition of material agency that emphasizes the idea that agency is a process, and I suggest that material agency is better captured by the phenomenological experience of flow. This phenomenological understanding of material agency both responds to Theiner & Drain’s critique, and emphasizes the importance of investigating material culture phenomenologically. (shrink)

What aspects and features of events impel people to label them as miraculous? Three studies examined people's miracle conceptions and the factors that lead them to designate an event as a miracle. Study 1 identified the basic elements of laypersons’ miracle beliefs by instructing participants to define a miracle, to list five events that they considered miraculous, and to state what they believed to be the purpose of miracles. Results showed that individuals tend to view miracles as highly improbable and (...) beneficial occurrences that instill hope and faith in people. Studies 2 and 3 investigated people's intuitive miracle theories. Findings demonstrated that people tend to label events as miracles when the events in question were of high magnitude, were obtained in an unusual manner, resulted in a beneficial health outcome, personally affected the participant, involved a person of worthy character, and depicted a low-probability event. (shrink)

In this paper I argue that noun complement modality cannot be treated as dependent on the meanings of lexical embedding predicates or of abstract performatives. Using two types of complement modalities, I show that their meanings and restrictions remain distinct and invariable regardless of the meanings of their embedding predicates. Then, using embedding predicates that can take both types of modalities, I show that the embedding predicates retain their meanings, regardless of the different modalities of their complements, and they can (...) undergo deletions requiring their identity. (shrink)

Everyday reasoning requires more evidence than raw data alone can provide. We explore the idea that people can go beyond this data by reasoning about how the data was sampled. This idea is investigated through an examination of premise non‐monotonicity, in which adding premises to a category‐based argument weakens rather than strengthens it. Relevance theories explain this phenomenon in terms of people's sensitivity to the relationships among premise items. We show that a Bayesian model of category‐based induction taking premise sampling (...) assumptions and category similarity into account complements such theories and yields two important predictions: First, that sensitivity to premise relationships can be violated by inducing a weak sampling assumption; and second, that premise monotonicity should be restored as a result. We test these predictions with an experiment that manipulates people's assumptions in this regard, showing that people draw qualitatively different conclusions in each case. (shrink)

The fallacies, as traditionally conceived, are wrong ways of reasoning that nevertheless appear attractive to us. Recently, however, Woods (2013) has argued that they don’t merit such a title, and that what we take to be fallacies are instead largely virtuous forms of reasoning. This reformation of the fallacies forms part of Woods’ larger project to naturalize logic. In this paper I will look to his analysis of the argumentum ad hominem as a case study for the prospects of this (...) project. I will argue that the empirical literature on implicit bias presents a difficulty for the reformation of the ad hominem as cognitively virtuous. Cases where implicit bias influences our assessment of the truth or claim or argument are instances of ad hominem reasoning, and these qualify as fallacious on Woods’ own definition. (shrink)

We offer a sceptical examination of a thesis recently advanced in a monograph published by Princeton University Press, entitled Greek Buddha: Pyrrho’s Encounter with Early Buddhism in Central Asia. In this dense and probing work, Christopher I. Beckwith, a professor of Central Eurasian studies at Indiana University, Bloomington, argues that Pyrrho of Elis adopted a form of early Buddhism during his years in Bactria and Gandhāra, and that early Pyrrhonism must be understood as a sect of early Buddhism. In making (...) his case Beckwith claims that virtually all scholars of Greek, Indian, and Chinese philosophy have been operating under flawed assumptions and with flawed methodologies, and so have failed to notice obvious and undeniable correspondences between the philosophical views of the Buddha and of Pyrrho. In this study we take Beckwith’s proposal and challenge seriously, and we examine his textual basis and techniques of translation, his methods of examining passages, his construal of problems and his reconstruction of arguments. We find that his presuppositions are contentious and doubtful, his own methods are extremely flawed, and that he draws unreasonable conclusions. Although the result of our study is almost entirely negative, we think it illustrates some important general points about the methodology of comparative philosophy. (shrink)

What sorts of properties we perceive matters for understanding the nature of perception and the scope of perceptual justification. One way of arguing for the view that we can represent ‘high-level’ properties such as natural and artificial kinds is to appeal to Susanna Siegel’s method of phenomenal contrast, which contrasts the phenomenology of experts and novices. This argument can be strengthened by appealing to empirical work on perceptual learning and expertise that suggests the world really does look different to experts (...) after training. Moreover, this appeal can diffuse several lines of objection to Siegel’s argument. Here I discuss two recent cases: Fred Dretske’s Goldilocks test, and Kevin Connolly’s attention shift argument. In both cases, a proper understanding of perceptual learning, and the role attention plays in such learning, explains how high-level properties can come to be represented in perceptual experience. Learned attentional patterns are themselves partially constitutive of representing high-level properties in perceptual experience. (shrink)

Knowledge of the law and its impact on health outcomes is increasingly important in public health practice. The CDC's Public Health Law Academy helps satisfy this need by providing online trainings, facilitator toolkits, and legal epidemiology tools to aid practitioners in learning about the law's role in promoting public health.

Two arguments in Eudemian Ethics 2 that are crucial to Aristotle’s definition of moral virtue as a mean state contain claims that Aristotle says are clear by induction. In these contexts, he explicitly appeals to examples coming from arts and sciences like gymnastic training and medicine for evidence. But Aristotle does not here, or elsewhere (at least in any extant work), including the parallel arguments in the Nicomachean Ethics, actually supply or discuss the evidence that makes these inductive arguments clear. (...) Fortunately, strong support for them can be found in the Hippocratic Corpus, especially in On Ancient Medicine and On Regimen. (shrink)

A study of culturally-embedded perceptual responses to aesthetic value indicates that learned perceptual capacities can secure compliance with social norms. We should therefore resist the temptation to draw a line between cognitive processes, such as perception, that can adapt to differences in physical environments, and cognitive processes, such as economic decision-making, that are shaped by social norms. Compliance with social norms is a result of perceptual learning when that same compliance modifies perceptible features of the physical environment.

Aristotle is commonly considered the inventor of teleology, although the exact term "teleology" originated in the eighteenth century. If teleology means the use of ends and goals in natural science, then Aristotle should be regarded rather as a critical innovator of teleological explanation. Teleological notions were widespread among his predecessors, but Aristotle rejected their conception of extrinsic causes like mind or god as the primary causes for natural things. Aristotle's radical alternative was to assert nature itself as an internal principle (...) of change and an end, and his teleological explanations focus on the intrinsic ends of natural substances---those ends that benefit the natural thing itself. To these he contrasted incidental ends of natural things, such as possible uses of the thing which do not serve its own functions and interests. ;Aristotle holds that natural science is knowledge that comes about through demonstration of the causes of natural kinds. Most important is "the cause for the sake of which"---the end. The identification of a natural end initiates the process of explanation and constitutes the basis for all objective knowledge about natural kinds---stars, elements, plants, and animals. The determination of the ends of natural kinds also indicates how other causal factors, such as matter and necessity, are to be integrated into an explanatory account of their parts and behavior. ;Aristotle's teleology was subsequently conflated with incompatible "teleological" notions, including proofs for the existence of a providential or designer god, vitalism and animism, opposition to mechanism and non-teleological causation, and anthropocentrism. I aim to correct these misrepresentations through an investigation of Aristotle's methodological statements, as well as the explanations actually offered in the scientific works. I argue that Aristotle's aporetic approach avoids the dilemma between backwards causation and anthropomorphism that is frequently leveled against teleology. ;Although Aristotle's philosophy sometimes suffers from failed extrapolation of teleological principles, still it succeeds in challenging the anthropocentric conception of nature, and rising above the banausic perspective which views all natural things as instruments for human ends, to a loftier viewpoint from which natures can be observed and appreciated as their own goods. (shrink)

Aristotle’s dialogue Protrepticus is not only his earliest work of ethics but also the root of all his subsequent investigations into ethics. Here we explore the various ways Aristotle retained in memory the contents of the Protrepticus and redeployed them in the Eudemian Ethics, including the common books. Since Aristotle himself does not explicitly acknowledge the foundational significance of the Protrepticus to his later works, our exploration must proceed on the basis of our knowledge of the earlier work, which can (...) then related to comparable passages in the treatises. But the Protrepticus is a lost work, unlike the EE and the EN, in the sense that no medieval manuscripts of it have survived. And so it first needs to be reconstructed on the basis of the streams of reception that deposited information in surviving works by later ancient authors. We begin in part 1 by reviewing the surviving evidence of the Protrepticus before presenting our wider reconstruction and conception of the work as a dialogue in part 2. In part 3, we discuss ideas and arguments in the reconstructed dialogue that are retained and redeployed in the Eudemian Ethics, focussing on the account of intellectual virtues in EE v and the introduction and methodological framework in EE i-ii.1. (shrink)

Some kinds are both socially constructed and perceptible, such as gender and race. However, this gives rise to a puzzle that has been largely neglected in social constructionist accounts: how does culture shape and bias what we perceive? I argue that perceptual learning is the best explanation of our ability to perceive social kinds, in comparison to accounts that require a person acquire beliefs, theories, or concepts of the kind. I show how relatively simple causal factors known to influence perceptual (...) learning in the laboratory can be extended to understand how culture shapes and biases perception. This account makes clear that the process of perceptual enculturation begins at a very early age, and does not in most cases require background beliefs on the part of the learner: the causal pathways by which perceptual learning occur suffice. It has significance for our understanding of how socially constructed kinds are culturally transmitted, as well as for how such kinds might be altered through interventions. (shrink)

Critics have alleged that Democritus’ ethical prescriptions (“gnomai”) are incompatible with his physics, since his atomism seems committed to necessity or chance (or an awkward combination of both) as a universal cause of everything, leaving no room for personal responsibility. I argue that Democritus’ critics, both ancient and contemporary, have misunderstood a fundamental concept of his causality: a cause called “spontaneity”, which Democritus evidently considered a necessary (not chance) cause, compatible with human freedom, of both atomic motion and human actions. (...) Some influential contemporary compatibilists have argued that freedom and responsibility are compatible with causal determinism, but not intentional constraint where some other agent is intentionally manipulating or coercing one’s actions. In line with this, Democritus holds that humans should not blame their actions on other agents like the gods, or agent-like external forces like fate or chance, but should assume ultimate intentional control over their own choices and actions. The famous remark of his associate Leucippus that “everything happens for a reason and out of necessity” is a fitting slogan of their atomistic philosophy, for Democritus pursued what can without anachronism be recognized as a causal theory of freedom. (shrink)

Medical ethical thought, imbued with the idealism of traditional medicine, has always grappled with the problem of translating abstract principles into actions that do not violate the sensibilities of the patient or the physician. The problem of translation is minimal for the family physician engaged in routine conversations with patients and their family members. This conversation — staying with details, maintaining the union of values and facts, reflecting without detaching or distancing — suggests a model of ethical reasoning and problem-solving (...) that warrants serious attention. (shrink)

v. 1. Kierkegaard. Nietzsche. Husserl. Heidegger.--v. 2. Scheler. Buber. Jaspers. Sartre.

This paper argues that people commonly make moral and aesthetic errors regarding personal beauty. One moral error involves treating people as if their superficial physical beauty is a key source of their value. This practice immorally objectifies people by treating them as aesthetic objects, such as paintings or sunsets, rather than persons. Physical personal beauty is overrated. And even to the extent to which it may be appropriate to appreciate personal beauty, people still commonly make an aesthetic error by treating (...) people as if their aesthetic value derives primarily from how their faces and bodies look. We thereby overlook much of their aesthetic value, including their aesthetic agency—which involves the aesthetic choices that shape people’s appearance and conduct, as well as their inner selves and character. Moreover, tending to a person’s fuller aesthetic value may mitigate harmful consequences of lookism. (shrink)

This is the latest draft of our translation of our reconstruction of Aristotle's lost work, the Protrepticus (Exhortation to Philosophy). The front matter indicates how to cite the work and the translation. We are currently in the process of preparing a critical Greek edition and commentary.

Authenticates approximately 500 lines of Aristotle's lost work the Protrepticus (Exhortation to Philosophy) contained in the circa third century AD work by Iamblichus of Chalcis entitled Protrepticus epi philosophian. Includes a complete English translation of the authenticated material.

I argue that a circa first century B.C./A.D. anonymous epistolary comic novel depicting a fictional interaction between Hippocrates of Cos and Democritus of Abdera contains an insightful imitation of Democritus that can cast light on the historical Democritus’s thought, including his thought on the touchy subject of appropriate and inappropriate laughter. The only thing certain about Democritus’s view of laughter is that he denounced laughter at human misfortune as inappropriate. The later legend of him as laughing at everything and everyone (...) indiscriminately is a later distortion of his view which the author of the comic novel seems concerned to counteract. (shrink)

For an Aristotelian observer, the halo is a puzzling phenomenon since it is apparently sublunary, and yet perfectly circular. This paper studies Aristotle's explanation of the halo in Meteorology III 2-3 as an optical illusion, as opposed to a substantial thing (like a cloud), as was thought by his predecessors and even many successors. Aristotle's explanation follows the method of explanation of the Posterior Analytics for "subordinate" or "mixed" mathematical-physical sciences. The accompanying diagram described by Aristotle is one of the (...) earliest lettered geometrical diagrams, in particular of a terrestrial phenomenon, and versions of it can still be found in modern textbooks on meteorological optics. (shrink)

The key term of Aristotle’s teleology is “the cause for the sake of which”. Aristotle discusses in several key texts the fact that this has two different senses: aim and beneficiary. The aim of a knife is cutting, but the beneficiary is the person who does, or orders, the cutting. Aristotle uses this distinction to show how natural things have both aims and are beneficiaries of their functions. He also shows how non-natural things, such as god, can operate as causes (...) for the sake of which, but not as beneficiaries. Eternal things cannot be beneficiaries, because they cannot undergo change. Thus, the beneficiaries of Aristotle’s teleology are the elements, plants, and animals that can both undergo change and have functional aims. A survey of other terms of Aristotle’s teleology, such as “nature does nothing in vain”, the terms “complete” or “perfect”, as well as “end” and “entelechy” further show the specific orientation of Aristotle’s teleology, as do his use of axiological terms such as “better” and “fine”. (shrink)

Aristotle’s interpretation of Democritus’ concept of the void as a kind of "place" has been called into question by modern historians of philosophy. The modest aim of the present essay is to argue that Aristotle’s description is reasonably charitable and accurate and affords the basis—the only possible basis—for a coherent reconstruction Democritus’ theory.