The selected effects or ‘etiological’ theory of Proper function is a naturalistic and realist account of biological teleology. It is used to analyse normativity in philosophy of language, philosophy of mind, philosophy of medicine and elsewhere. The theory has been developed with a simple and intuitive view of natural selection. Traits are selected because of their positive effects on the fitness of the organisms that have them. These ‘selected effects’ are the Proper functions of the traits. Proponents argue that this (...) analysis of biological teleology has the unique advantage that the selected effect function of a trait is also a causal explanation of the trait: the trait exists because it performs this function. We show, however, that selected effect functions as currently defined explain the existence of traits only under highly restrictive assumptions about evolutionary dynamics. In many common scenarios in which traits evolve by natural selection, selected effect functions do not explain those traits. This is because definitions of selected effect function extract from any evolutionary scenario only the information that would be explanatorily relevant in the simple evolutionary scenario implicit in those definitions. When applied to more complex scenarios selected effect functions omit the key information that is explanatorily relevant in those scenarios. The assumptions required for selected effect functions to be explanatory are particularly unlikely to hold in the domain that its proponents care most about - the evolution of representation. A more adequate selected effects theory of Proper functions may be possible, but will require much greater attention to the structure of actual evolutionary explanations. (shrink)

You don't say much about who you are teaching, or what subject you teach, but you do seem to see a need to justify what you are doing. Perhaps you're teaching underprivileged children, opening their minds to possibilities that might otherwise never have occurred to them. Or maybe you're teaching the children of affluent families and opening their eyes to the big moral issues they will face in life — like global poverty, and climate change. If you're doing something like (...) this, then stick with it. Giving money isn't the only way to make a difference. (shrink)

Book Symposium on The Territories of Science and Religion (University of Chicago Press, 2015). The author responds to review essays by John Heilbron, Stephen Gaukroger, and Yiftach Fehige.

The Principal Principle (PP) says that, for any proposition A, given any admissible evidence and the proposition that the chance of A is x%, one's conditional credence in A should be x%. Humean Supervenience (HS) claims that, among possible worlds like ours, no two differ without differing in the spacetime-point-by-spacetime-point arrangement of local properties. David Lewis (1986b, 1994a) has argued that PP contradicts HS, and the validity of his argument has been endorsed by Bigelow et al. (1993), Thau (1994), Hall (...) (1994), Strevens (1995), Ismael (1996), Hoefer (1997), and Black (1998). Against this consensus, I argue that PP might not contradict HS: Lewis's argument is invalid, and every attempt – within a broad class of attempts – to amend the argument fails. (shrink)

Suppose that a sign at the entrance of a hotel reads: “Don’t enter these premises unless you are accompanied by a registered guest”. You see someone who is about to enter, and you tell her: “Don’t enter these premises if you are an unaccompanied registered guest”. She asks why, and you reply: “It follows from what the sign says”. It seems that you made a valid inference from an imperative premise to an imperative conclusion. But it also seems that imperatives (...) cannot be true or false, so what does it mean to say that your inference is valid? It cannot mean that the truth of its premise guarantees the truth of its conclusion. One is thus faced with what is known as “Jørgensen’s dilemma” (Ross 1941: 55-6): it seems that imperative logic cannot exist because logic deals only with entities that, unlike imperatives, can be true or false, but it also seems that imperative logic must exist. It must exist not only because inferences with imperatives can be valid, but also because imperatives (like “Enter” and “Don’t enter”) can be inconsistent with each other, and also because one can apply logical operations to imperatives: “Don’t enter” is the negation of “Enter”, and “Sing or dance” is the disjunction of “Sing” and “Dance”. A standard reaction to this dilemma consists in basing imperative logic on analogues of truth and falsity. For example, the imperative “Don’t enter” is satisfied if you don’t enter and is violated if you enter, and one might say that an inference from an imperative premise to an imperative conclusion is valid exactly if the satisfaction (rather than the truth) of the premise guarantees the satisfaction of the conclusion. But before getting into the details, more needs to be said on what exactly imperatives are. (shrink)

Peter Ludlow shows how word meanings are much more dynamic than we might have supposed, and explores how they are modulated even during everyday conversation. The resulting view is radical, and has far-reaching consequences for our political and legal discourse, and for enduring puzzles in the foundations of semantics, epistemology, and logic.

This paper looks at the critical reception of two central claims of Peter Auriol’s theory of cognition: the claim that the objects of cognition have an apparent or objective being that resists reduction to the real being of objects, and the claim that there may be natural intuitive cognitions of nonexistent objects. These claims earned Auriol the criticism of his fellow Franciscans, Walter Chatton and Adam Wodeham. According to them, the theory of apparent being was what had led Auriol (...) to allow for intuitive cognitions of nonexistents, but the intuitive cognition of nonexistents, at its turn, led to scepticism. Modern commentators have offered similar readings of Auriol, but this paper argues, first, that the apparent being provides no special reason to think there could be intuitions of nonexistent objects, and second, that despite his idiosyncratic account of intuition, Auriol was no more vulnerable to scepticism than his critics. (shrink)

This paper provides a philosophical evaluation of the concept of handedness prevalent but largely unspoken in the scientific literature. This literature defines handedness as the preference or ability to use one hand rather than the other across a range of common activities. Using the philosophical discipline of phenomenology, I articulate and critique this conceptualization of handedness. Phenomenology shows defining a concept of handedness by focusing on hand use leads to a right hand biased concept. I argue further that a phenomenological (...) model based in spatial orientation rather than hand use provides a more inclusive concept of handedness. (shrink)

My paper aims at presenting Peter Auriol’s theory of cognition. Auriol holds that cognition is “something which makes an object appear to someone.” This claim, for Auriol, is meant to be indeterminate, as he explicitly says that the “something” in question can refer to any type of being. However, when he states how cognition is “implemented” in cognizers, Auriol specifies what this “something” is: for God, it is simply the deity itself; for creatures, cognition is described as something “absolute,” (...) i.e. non-relational, more precisely a complex entity made up of a cognitive power and a “likeness.” However, one also finds Auriol saying that created cognition, as a “likeness,” is relative. Yet, when Auriol talks of created cognition as something relative, he does not make an ontological claim: he means that one cannot think of cognition without thinking of it as having a relation to an object. In brief, created cognition, for Auriol, is ontologically absolute, but it is always represented together with a relation. (shrink)

Peter Ludlow presents the first book on the philosophy of generative linguistics, including both Chomsky's government and binding theory and his minimalist ...

The subject matter of this essay is Peter of John Olivi’s (ca.1248–98) conception of reason from the viewpoint of human action.

This paper presents a passage from Peter Singer on the pond analogy and comments on its content and use in the classroom, especially with respect to the development of the learners' argumentative skills.

Spirituality and spiritual well-being are connected with many areas of human life. Thus, especially in secular countries, there is a need for reliable validated instruments for measuring spirituality. The Spiritual Well-Being Scale is among the world’s most often used tools; therefore, the aim of this study was its psychometrical evaluation in the secular environment of the Czech Republic on a nationally representative sample (n = 1797, mean age: 45.9 ± 17.67; 48.6% men). A non-parametric comparison of different sociodemographic groups showed (...) a higher disposition for experiencing spirituality among women, older people, and divorced persons. Based on confirmatory factor analysis, negatively worded items were excluded using a polychoric correlation matrix. The new version of the scale consisting of 11 items had good internal consistency (Cronbach’s α = 0.85; McDonald’s ωt = 0.91). The two-factor model of this shortened version, with factors corresponding to the Religious and the Existential subscales of the Spiritual Well-Being Scale, shows a satisfactory fit with the data, where the loadings of all items ranged from medium to high. Thus, this study offered a new version of the tool, convenient for measuring spiritual well-being in secular conditions. (shrink)

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I defend the following version of the ought-implies-can principle: (OIC) by virtue of conceptual necessity, an agent at a given time has an (objective, pro tanto) obligation to do only what the agent at that time has the ability and opportunity to do. In short, obligations correspond to ability plus opportunity. My argument has three premises: (1) obligations correspond to reasons for action; (2) reasons for action correspond to potential actions; (3) potential actions correspond to ability plus opportunity. In the (...) bulk of the paper I address six objections to OIC: three objections based on putative counterexamples, and three objections based on arguments to the effect that OIC conflicts with the is/ought thesis, the possibility of hard determinism, and the denial of the Principle of Alternate Possibilities. (shrink)

Gaunilo assumes that there is no greatest conceivable island, and most philosophers have followed him in this assumption. But the option was open for Anselm (and remains open for us) to bite the bullet and ‘give him his island.’ I argue that such a response is perfectly reasonable for a Platonist like Anselm, and that even a theist who isn’t a Platonist can tolerate the island as a fairly minor addition his or her ontology.

A short encyclopedia article on Peter Singer which discusses his views on the obligations that the global wealthy have to the global poor and on our obligations to non-human animals.

Peter de Rivo (b. ca. 1420), argues for the existence of human freedom despite its alleged incompatibility with the truth of future contingent propositions. Rivo’s solution doesn’t follow the common medieval attempt to dissolve the alleged incompatibility, but claims that future contingent propositions aren’t determinately true. This approach troubled Rivo’s contemporaries, who thought it was incompatible with biblical infallibility, particularly the veracity of prophetic statements. Rivo tries to reconcile his solution with orthodox Christianity by grounding authentic prophetic statements in (...) God’s cognition of future events. In the end, Rivo’s attempted reconciliation fails because grounding the truth of prophetic statements in God cognition is incompatible either with his theological assumptions or his conception of free action. (shrink)

Although the relationship of part to whole is one of the most fundamental there is, this is the first full-length study of this key concept. Showing that mereology, or the formal theory of part and whole, is essential to ontology, Simons surveys and critiques previous theories--especially the standard extensional view--and proposes a new account that encompasses both temporal and modal considerations. Simons's revised theory not only allows him to offer fresh solutions to long-standing problems, but also has far-reaching consequences for (...) our understanding of a host of classical philosophical concepts. (shrink)

This paper argues for a re-evaluation of the relationship between Berkeley and his predecessor, the neo-Aristotelian thinker John Sergeant. In the literature to date, the relationship between these two thinkers has received attention for two reasons. First, because some commentators have attempted to establish a causal connection between them – specifically, by focusing on the fact that both thinkers develop a theory of ‘notions’. Second, because both Berkeley and Sergeant develop ‘anti-representationalist’ arguments against Locke’s epistemology. The first issue has received (...) much greater attention, particularly from commentators seeking an explanation for Berkeley’s use of the term ‘notion’. Only one scholar, G. A. Johnston (in 1923), has considered Berkeley and Sergeant’s anti-representationalism in any depth. In this paper, I argue that the weight given to the causal connection between Berkeley and Sergeant’s ‘notions’ is misplaced since the evidence in favour of this connection is weaker than is usually acknowledged. Instead, I build on Johnston’s analysis of the conceptual connection between Berkeley and Sergeant’s anti-representationalism. I first corroborate Johnston’s claim that there are striking similarities between their criticisms of Locke before going beyond that analysis by identifying two important similarities between their anti-representationalist arguments. (shrink)

Péter Pázmány taught philosophy at the Jesuit university of Graz, end of 16th century. This analyzes his interpretation of Aristotelian psychology.

Maximizing act consequentialism holds that actions are morally permissible if and only if they maximize the value of consequences—if and only if, that is, no alternative action in the given choice situation has more valuable consequences.[i] It is subject to two main objections. One is that it fails to recognize that morality imposes certain constraints on how we may promote value. Maximizing act consequentialism fails to recognize, I shall argue, that the ends do not always justify the means. Actions with (...) maximally valuable consequences are not always permissible. The second main objection to maximizing act consequentialism is that it mistakenly holds that morality requires us to maximize value. Morality, I shall argue, only requires that we satisfice (promote sufficiently) value, and thus leaves us a greater range of options than maximizing act consequentialism recognizes. (shrink)

The present text contains a critical edition of Peter of Palude’s question of divine concurrence, found in his Sentences commentary, book II, d. 1, q. 4. The question concerns whether God is immediately active in every action of a creature, and if yes, how we should understand this divine concurrence. Peter, just as elsewhere in his commentary, considers at length the opinions of other thinkers — especially those of Giles of Rome, Durand of St.-Pourçain, and Thomas Aquinas — (...) and develops his own answer as a response to theirs. Thus, while Giles maintained that God acts uniformly in every instance of natural causation just as the sun acts uniformly by giving the same light to everything, Peter (following Durand) argues that this is incompatible with the divine creation of multiple things. Second, while Durand maintained that God is only mediately active in the actions of creatures, Peter rejects this opinion because it cannot account for miracles contra naturam (such as the three young men in Nebuchadnezzar’s fire), and because he thinks that God’s immediate action follows from his immediate conservation of creatures. Third, Peter presents Aquinas’s position in detail, and defends it against Durand’s objections; according to this position, God immediately conserves and concurs with every creature, with an action that is numerically distinct from that of the secondary agent. Although as a result of his extensive borrowing, Peter’s text might not be regarded as immensely original, it provides an interesting case study of the Dominican reaction against Durand in the early 1300’s. (shrink)

In recent years, interest in desert-based theories of justice has increased, and this seems to represent a challenge to equality-based theories of justice.[i] The best distribution of outcomeadvantage with respect to desert, after all, need not be the most equal distribution of outcomeadvantage. Some individuals may deserve more than others. Outcome egalitarianism is, however, implausible, and so the conflict of outcome desert with outcome equality is of little significance.[ii] Most contemporary versions of egalitarianism are concerned with neutralizing the differential effects (...) of brute luck and not with equality of outcome. I shall argue that, in order to be plausible, a desert-based theory of justice can and must be compatible with this form of egalitarianism. There is, however, a stronger form of brute luck egalitarianism, which, as I shall explain, is concerned with equalizing the advantages from brute luck—and not merely with neutralizing the differential effects thereof. Under idealized conditions in which agents have perfect information about the outcomes that their choices generate, even this stronger form of egalitarianism, I shall show, is compatible with pure desert theory. Under conditions of incomplete information, however, strong brute luck egalitarianism is incompatible with a pure desert theory that appeals, as I shall explain, to moral, rather than prudential, desert. (shrink)

Peter Singer’s famous and influential article is criticised in three main ways that can be considered libertarian, although many non-libertarians could also accept them: 1) the relevant moral principle is more plausibly about upholding an implicit contract rather than globalising a moral intuition that had local evolutionary origins; 2) its principle of the immorality of not stopping bad things is paradoxical, as it overlooks the converse aspect that would be the positive morality of not starting bad things and also (...) thereby conceptually eliminates innocence; and 3) free markets—especially international free trade—have been cogently explained to be the real solution to the global “major evils” of “poverty” and “pollution”, while “overpopulation” does not exist in free-market frameworks; hence charity is a relatively minor alleviant to the problem of insufficiently free markets. There are also various subsidiary arguments throughout. (shrink)

What rights and duties do adults have with respect to raising children? Who, for example, has the right to decide how and where a particular child will live, be educated, receive health care, and spend recreational time? I argue that neither biological (gene-provider) nor..

According to Peter Klein, foundationalism fails because it allows a vicious form of arbitrariness. The present article critically discusses his concept of arbitrariness. It argues that the condition Klein takes to be necessary and sufficient for an epistemic item to be arbitrary is neither necessary nor sufficient. It also argues that Klein's concept of arbitrariness is not a concept of something that is obviously vicious. Even if Klein succeeds in establishing that foundationalism allows what he regards as arbitrariness, this (...) does not yet mean that he confronts it with a sound objection. (shrink)

This is the full version of the Delphi Report on critical thinking and critical thinking instruction at the post-secondary level.

Justice and Libertarianism The term ‘justice’ is commonly used in several different ways. Sometimes it designates the moral permissibility of political structures (such as legal systems). Sometimes it designates moral fairness (as opposed to efficiency or other considerations that are relevant to moral permissibility). Sometimes it designates legitimacy in the sense of it being morally impermissible for others to interfere forcibly with the act or omission (e.g., my failing to go to dinner with my mother may be wrong but nonetheless (...) legitimate). Finally, sometimes it designates what we owe each other in the sense of respecting everyone’s rights. Of course, these notions are closely related. What we owe each other may, but need not, be partly based on issues of fairness. Legitimacy and permissibility of political structures are largely, but perhaps not entirely, determined by what rights of non-interference individuals have. Nonetheless, these are distinct notions and we shall focus only on what we owe each other. Justice as what we owe each other is not concerned with impersonal duties (duties owed to no one, i.e., that do not correspond to anyone’s rights). If there are impersonal duties, then something can be just but nonetheless morally impermissible. For brevity, we shall often write of actions being permissible or agents having a moral liberty, but this should always be understood in the interpersonal sense of violating no one’s rights. Libertarianism is sometimes advocated as a derivative set of rules (e.g., derived from rule utilitarian or contractarian doctrines). Here, however, we reserve the term for the natural rights doctrine that agents initially fully own themselves. Agents are full self-owners just in case they own themselves in precisely the same way that they can fully own inanimate objects. Stated slightly differently, full self-owners own themselves in the same way that a full chattel-slaveowner owns a slave. Throughout, we are concerned with moral ownership and not legal ownership.. (shrink)

Democratic societies expect their armed forces to act in a morally responsible way, which seems a fair expectation given the fact that they entrust their armed forces with the monopoly of violence. However, this is not as straightforward and unambiguous as it sounds. Present-day military practices show that political assignments, social and cultural contexts, innovative technologies and organisational structures, present military personnel with questions and dilemma’s that can have far-reaching consequences for all involved – not in the last place for (...) the soldiers themselves. A thorough training and education, in which critical thinking is developed and stimulated, seems therefore a necessary condition for morally responsible behaviour. This book aims to contribute to this form of ‘reflective practitioning’ in military practice. (shrink)

Peter H. Hare (1935-2008) developed informed, original views about the proposition: some published (Hare 1969 and Hare-Madden 1975); some expressed in conversations at scores of meetings of the Buffalo Logic Colloquium and at dinners following. The published views were expository and critical responses to publications by Curt J. Ducasse (1881-1969), a well-known presence in American logic, a founder of the Association for Symbolic Logic and its President for one term.1Hare was already prominent in the University of Buffalo's Philosophy Department (...) in 1969 when I was appointed. Soon after, he became Chair. As his Associate Chair from 1971to 1975, I spent many hours with him in Buffalo and on professional trips .. (shrink)

We argue that recent empirical findings and theoretical models shed new light on the nature of attention. According to the resulting amplification view, attentional phenomena can be unified at the neural level as the consequence of the amplification of certain input signals of attention-independent perceptual computations. This way of identifying the core realizer of attention evades standard criticisms often raised against sub-personal accounts of attention. Moreover, this approach also reframes our thinking about the function of attention by shifting the focus (...) from the function of selection to the function of amplification. (shrink)

Disagreement has been grist to the mills of sceptics throughout the history of philosophy. Recently, though, some philosophers have argued that widespread philosophical disagreement supports a broad scepticism about philosophy itself. In this paper, I argue that the task for sceptics of philosophy is considerably more complex than commonly thought. The mere fact that philosophical methods fail to generate true majority views is not enough to support the sceptical challenge from disagreement. To avoid demanding something that human reasoning cannot supply, (...) sceptics must show that philosophers have sufficient overlap to resolve their disagreements in particular concrete cases. (shrink)

Reading Peter Sloterdijk's concept of spheres Bubbles : Spheres 1 - Irfan Ajvazi .

The word “justice” is used in several different ways. First, justice is sometimes understood as moral permissibility applied to distributions of benefits and burdens (e.g., income distributions) or social structures (e.g., legal systems). In this sense, justice is distinguished by the kind of entity to which it is applied, rather than a specific kind of moral concern.

According to typical ought-implies-can principles, if you have an obligation to vaccinate me tomorrow, then you can vaccinate me tomorrow. Such principles are uninformative about conditional obligations: what if you only have an obligation to vaccinate me tomorrow if you synthesize a vaccine today? Then maybe you cannot vaccinate me tomorrow ; what you can do instead, I propose, is make it the case that the conditional obligation is not violated. More generally, I propose the ought-implies-can-obey principle: an agent has (...) an obligation only at times at which the agent can obey the obligation. I also propose another principle, which captures the idea that ‘ought’ implies ‘can avoid’. I defend both principles mainly by arguing that they help explain why agents lose obligations, including conditional ones. (shrink)

Book review of Peter Boghossian, A Manual for Creating Atheists, Pitchstone Publishing, 2013, 280pp., $14.95, ISBN 978-1939578099 (paperback). Foreword by Michael Shermer. Science, Religion & Culture 1:2 (August 2014), 93-96 .

[Newspaper Opinion] Before the COVID-19 pandemic and the accompanying fall in oil prices, a carbon price would have been immediately painful for the countries that imposed it, but far better for everyone over the longer term. In this unprecedented moment, introducing a carbon price would be beneficial both now and for the future.

The editors cull the works of 11 noted French and German philosophers for their contributions to the debate about what animals are like and how we should relate to them. Each selection gives the gist of the philosopher's view followed by a noted scholar's comments. The result, as Peter Singer notes in his merciless Foreward, is that most of the Continentals have had almost nothing of interest to say on the topic.

Jennifer Lackey ('Testimonial Knowledge and Transmission' The Philosophical Quarterly 1999) and Peter Graham ('Conveying Information, Synthese 2000, 'Transferring Knowledge' Nous 2000) offered counterexamples to show that a hearer can acquire knowledge that P from a speaker who asserts that P, but the speaker does not know that P. These examples suggest testimony can generate knowledge. The showpiece of Lackey's examples is the Schoolteacher case. This paper shows that Lackey's case does not undermine the orthodox view that testimony cannot generate (...) knowledge. This paper explains why Lackey's arguments to the contrary are ineffective for they misunderstand the intuitive rationale for the view that testimony cannot generate knowledge. This paper then elaborates on a version of the case from Graham's paper 'Conveying Information' (the Fossil case) that effectively shows that testimony can generate knowledge. This paper then provides a deeper informative explanation for how it is that testimony transfers knowledge, and why there should be cases where testimony generates knowledge. (shrink)

The domain of phenomenological investigation delineated by the Husserlian term authentic empathy presents us with an immediate tension. On the one hand, authentic empathy is supposed to grant the subject access (in some sense that remains to be fully specified) to the Other’s experience. On the other hand, foundational phenomenological considerations pertaining to the apprehension of a foreign subjectivity determine that it is precisely a disjunction in subjective processes that is constitutive of the Other being other. In my approach to (...) this problem, I seek, within the context of a reading of Edith Stein’s work 'On the Problem of Empathy', to clarify the place of ascription in authentic empathy, and to render more explicit a certain notion of “contiguity” that I take to be informing Stein’s understanding of the co-givenness of the Other’s mental life. I go on to argue that a resolution to the problem of empathy lies in the idea that the respective lived experiences of self and Other are, as a matter of descriptive fact, phenomenally connected by a relation of resemblance, and that, consonantly, the essential structure of authentic empathy is characterised in its mature phases by an homological relation to picture consciousness. (shrink)