This book is based on previously unpublished lectures that Wisdom delivered at the University of Virginia. Its content goes significantly beyond that of his other books. Here he is concerned with how misunderstandings about what it is to prove something or what it is to explain something can infect our thinking in many different fields.

A common line of thought in contemporary metaethics is that certain facts about the evolutionary history of humans make moral realism implausible. Two of the most developed evolutionary cases against realism are found in the works of Richard Joyce and Sharon Street. In what follows, I argue that a form of moral realism that I call proper-function moral realism can meet Joyce and Street's challenges. I begin by sketching the basics of proper-function moral realism. I then present what I take (...) to be the essence of Street's and Joyce's objections, and I show how proper-function realism answers them. (shrink)

1. ‘How do we know the material world?’, ‘What is it to know the material world?’, ‘In what ways is knowledge of the material world like and in what ways is it unlike other sorts of knowledge?’ We know how we know the material world and what it is to know the material world and in what ways such knowledge is like and unlike other sorts of knowledge. But a man who knows what poetry is like and how it is (...) like and unlike prose may ask ‘What is poetry?’, and a mathematician who knows what it is like to do mathematics may ask ‘What is mathematics?’ It is in a rather like way that we ask ‘What is knowledge of the material world?’ The ways in which knowledge of the material world is like and unlike other sorts of knowledge are familiar to us but we wish for a still better grasp of these likenesses and unlikenesses. (shrink)

The central contention of this article is that the classificatory scheme of contemporary affective science, with its traditional categories of emotion, anger, fear, and so on, is no longer suitable to the needs of affective science. Unlike psychological constructionists, who have urged the transition from a discrete to a dimensional approach in the study of affective phenomena, I argue that we can stick to a discrete approach as long as we accept that traditional emotion categories will have to be transformed (...) in order to do any scientific work. I conclude by articulating some general rules for turning traditional emotion categories into suitable scientific tools. (shrink)

Conflicting Systems in the History of Philosophy. Hegel's logic consists, as is well known, in a chain of categories, connected by a relation of dialectic, which proceeded from the featureless Being, Nothing, and Becoming through more important ones such as Substance, Cause, and Reciprocity to the highest category of all, the Absolute Idea. Now Hegel also pointed to an interesting correlation between the categories of his logic and the dominant concepts of those philosophies that preceded his own: that is to (...) say, the logical order of categories given by him corresponded to the temporal order of the history of philosophy. Such connexion was not, however, to be regarded as an accident but as a necessary truth: for the Absolute manifested itself temporally in the form of the history of philosophy. Seeing that this contention probably contains some psychological truth and is probably assumed in Marxian interpretations of Hegel, it may be of some interest to see how far it can be substantiated. (shrink)

Instrumentalism is an approach to science that treats a theory as a tool and only as a tool for computation; it dispenses with the concept of truth.Conventionalism treats a theory as true by convention if it forms a pattern of observations from which correct predictions can be made.Operationalism denies meaning to the concepts of a theory unless they can be defined operationally. It is argued in this paper that truth-value is indispensable to science, because a theory can be rejected only (...) if an empirical consequence is false and if falsity of a conclusion entails falsity of a premise. This undermines the above positions. The fourth interpretation isinduction. Induction, by contrast, uses the notion of truth-value. What is focused on here is its reliance on the ultimacy ofobservation. The present thesis is that instrumentalism, conventionalism, and induction are different attempts to handle observations. The common problem is the gap between data and theory.All these interpretations share a philosophy of observationalism. The aim of this paper is to show that the several orthodox interpretations of science all fail to solve the problem of the data-theory gap, and to show that they all presuppose a philosophy of observation. (shrink)

Terry Horgan and Mark Timmons have recently provided an updated presentation and defense of a metaethical view that they call cognitivist expressivism. Expressivists claim that moral judgments express propositional attitudes that do not represent or describe the external world. Horgan and Timmons agree with this claim, but they also deny the traditional expressivist claim that moral judgments do not express beliefs. On their view, moral judgments are genuine, truth-apt beliefs, thus making their form of expressivism a cognitivist one. In this (...) essay, I argue that Horgan and Timmons have failed to demonstrate that moral judgments express sui generis, nondescriptive content by showing that at least some moral content is descriptive. In addition, I show how the descriptivist can account for those properties that Horgan and Timmons consider distinctive of moral belief. In doing so, I remove one of the expressivist's most important lines of motivation for positing nondescriptive moral content in the first place. At the end of the essay, I briefly sketch a view that I call partial or modest moral realism. (shrink)

Some explanations in social science, psychology and biology belong to a higher level than other explanations. And higher explanations possess the virtue of abstracting away from the details of lower explanations, many philosophers argue. As a result, these higher explanations are irreplaceable. And this suggests that there are genuine higher laws or patterns involving social, psychological and biological states. I show that this ‘abstractness argument’ is really an argument schema, not a single argument. This is because the argument uses the (...) ‘is lower than’ relation, and this relation admits of different readings. I then suggest four rigorous definitions of the ‘is lower than’ relation, and show that the abstractness argument’s prospects are much brighter for some of these definitions than for others. To show this, I evaluate the so-called ‘disjunctive threat’ to the abstractness argument. (shrink)

It is known that, on average, people adapt their choice of memory strategy to the subjective utility of interaction. What is not known is whether an individual's choices are boundedly optimal. Two experiments are reported that test the hypothesis that an individual's decisions about the distribution of remembering between internal and external resources are boundedly optimal where optimality is defined relative to experience, cognitive constraints, and reward. The theory makes predictions that are tested against data, not fitted to it. The (...) experiments use a no-choice/choice utility learning paradigm where the no-choice phase is used to elicit a profile of each participant's performance across the strategy space and the choice phase is used to test predicted choices within this space. They show that the majority of individuals select strategies that are boundedly optimal. Further, individual differences in what people choose to do are successfully predicted by the analysis. Two issues are discussed: the performance of the minority of participants who did not find boundedly optimal adaptations, and the possibility that individuals anticipate what, with practice, will become a bounded optimal strategy, rather than what is boundedly optimal during training. (shrink)

Utility maximization is a key element of a number of theoretical approaches to explaining human behavior. Among these approaches are rational analysis, ideal observer theory, and signal detection theory. While some examples of these approaches define the utility maximization problem with little reference to the bounds imposed by the organism, others start with, and emphasize approaches in which bounds imposed by the information processing architecture are considered as an explicit part of the utility maximization problem. These latter approaches are (...) the topic of this issue of the journal. (shrink)

An intrinsic property, according to one important account, is a property that is had by all of one's duplicates. Instead, one might choose to characterize intrinsic properties as those that can be had in the absence of all distinct individuals. After reviewing the problems with these earlier accounts, the author presents a less problematic analysis. The goal is to clarify the rough idea that an intrinsic property is a special sort of non-relational property; having the property does not consist in (...) any relation one bears to distinct individuals. (shrink)

Practical methods are introduced for the construction of definitions, both for philosophical purposes and for uses in other disciplines. The structural and contentual requirements on definitions are clarified. It is emphasized that the development of a definition should begin with careful choice of a primary definiendum, followed by the selection of appropriate variables for the definition. Two methods are proposed for the construction of the definiens, the case list method and the method of successive improvements. Four classes of concepts are (...) discussed that are particularly difficult to define: vague concepts, value-laden concepts, controversial concepts, and inconsistent concepts. (shrink)

The article suggests that, contrary to widespread opinions and standard encyclopedic definitions, philosophy is a domain not only of thoughts and ideas but also of feelings. Philosophy as love for wisdom includes emotions in both of its components. Among the many various feelings that we experience, there is a discrete group that, thanks to their involvement with universals, may be regarded as philosophical. Wonder, grief, compassion, tenderness, hope, despair, and delight are philosophical if they are experienced on behalf of (...) humankind and addressed to the world as a whole. The vocation of philosophy is to expand the realm of feelings through the generalizing capacity of the reason, so that love, joy, and pain can be experienced in a noble way, on a maximally global scale, not reducible to private or practical situations. Emotions of philosophical cast affect the world more powerfully than metaphysical ideas and logical propositions. Revolutions are driven less by ideas than by philosophical wrath, exasperation with the existing order of things, and the feeling that the world is unjust. It is in this context that Epstein's essay defines the genre of lyric philosophy as a direct self-expression of the thinking subject in the process of attaining self-cognition — as represented, for instance, in the work of Augustine, Montaigne, Kierkegaard, Emerson, and Nietzsche. Philosophical subjecthood as a means of self-expression for the transcendental subject should be distinguished from the purely personal subjectivity inherent to empirical individuals, in the same way and to the same extent as philosophical feelings should be distinguished from mundane ones experienced in everyday situations. Since the subject focused on itself is essential to lyricism, we may even speak of the generic, inescapable lyricism of philosophy per se. (shrink)

There are, broadly, three sorts of account of intrinsicality: ‘self-sufficiency’, ‘essentiality’ and ‘pure qualitativeness’. I argue for the last of these, and urge that we take intrinsic properties of concrete objects to be all and only those shared by actual or possible duplicates, which only differ extrinsically. This approach gains support from Francescotti’s approach: defining ‘intrinsic’ in contradistinction to extrinsic properties which ‘consist in’ relations which rule out intrinsicality. I answer Weatherson’s criticisms of Francescotti, but, to answer criticisms of my (...) own, I amend his account, proposing that possession of an extrinsic property consists in a relation to one or more actual or possible distinct concrete objects. Finally I indicate ways to avoid some apparent objections to this account. (shrink)

We propose a framework for including information‐processing bounds in rational analyses. It is an application of bounded optimality (Russell & Subramanian, 1995) to the challenges of developing theories of mechanism and behavior. The framework is based on the idea that behaviors are generated by cognitive mechanisms that are adapted to the structure of not only the environment but also the mind and brain itself. We call the framework computational rationality to emphasize the incorporation of computational mechanism into the definition of (...) rational action. Theories are specified as optimal program problems, defined by an adaptation environment, a bounded machine, and a utility function. Such theories yield different classes of explanation, depending on the extent to which they emphasize adaptation to bounds, and adaptation to some ecology that differs from the immediate local environment. We illustrate this variation with examples from three domains: visual attention in a linguistic task, manual response ordering, and reasoning. We explore the relation of this framework to existing “levels” approaches to explanation, and to other optimality‐based modeling approaches. (shrink)

We present work demonstrating that the nature of an object for our visual system depends on the actions we are programming and on the presence of action relations between stimuli. For example, patients who show visual extinction are more likely to become aware of two objects if the objects fall in appropriate visual locations for a common action. This effect of the action relations between objects is modulated both by the familiarity of the positioning of the objects for action, and (...) by the mere possibility of action (the ‘affordance’) between the objects. In addition, the programming of an action to a part of an object alters the representation of that object, making the ‘part’ into the object selected by the visual system. These results point to object coding being a rather flexible process, affected not only by the perceptual properties of stimuli but also by the relations between these properties and action. We discuss the implications for theories of perception as well as considering why action information, in particular, may be important for perception. (shrink)

This paper explores Simon Stevin’s l’Arithmétique of 1585, where we find a novel understanding of the concept of number. I will discuss the dynamics between his practice and philosophy of mathematics, and put it in the context of his general epistemological attitude. Subsequently, I will take a close look at his justificational concerns, and at how these are reflected in his inductive, a postiori and structuralist approach to investigating the numerical field. I will argue that Stevin’s renewed conceptualisation of the (...) notion of number is a sort of “existential closure” of the numerical domain, founded upon the practice of his predecessors and contemporaries. Accordingly, I want to make clear that l’Aritmetique have to be read not as an ontological analysis or exploration of the numerical field, but as an explication of a mathematical ethos. In this sense, this article also intends to make a specific contribution to the broader issue of the “ethics of geometry.”. (shrink)

We carry out a systematic investigation of the definability of linear order on classes of finite rigid structures. We obtain upper and lower bounds for the expressibility of linear order in various logics that have been studied extensively in finite model theory, such as least fixpoint logic LFP, partial fixpoint logic PFP, infinitary logic Lω∞ω with a finite number of variables, as well as the closures of these logics under implicit definitions. Moreover, we show that the upper and lower bounds (...) established here cannot be made substantially tighter, unless outstanding conjectures in complexity theory are resolved at the same time. (shrink)

The philosophical interest of terrorism is due partly to the fact that the term is notoriously difficult to define, and partly to the fact that there is some disagreement about whether and when terrorism so-called can be justified.

In this paper, first the term 'prioritarianism' is defined, with some mathematical precision, on the basis of intuitive conceptions of prioritarianism, especially the idea that "benefiting people matters more the worse off these people are". (The prioritarian weighting function is monotonously ascending and concave, while its first derivation is smoothly descending and convex but positive throughout.) Furthermore, (moderate welfare) egalitarianism is characterized. In particular a new symmetry condition is defended, i.e. that egalitarianism evaluates upper and lower deviations from the social (...) middle symmetrically and equally negatively (as do e.g. variance and Gini). Finally, it is shown that this feature distinguishes egalitarianism also extensionally from prioritarianism. (shrink)

As it is indicated in the title, this paper is devoted to the problem of defining mereological (collective) sets. Starting from basic properties of sets in mathematics and differences between them and so called conglomerates in Section 1, we go on to explicate informally in Section 2 what it means to join many objects into a single entity from point of view of mereology, the theory of part of (parthood) relation. In Section 3 we present and motivate basic axioms for (...) part of relation and we point to their most fundamental consequences. Next three sections are devoted to formal explication of the notion of mereological set (collective set) in terms of sums, fusions and aggregates. We do not give proofs of all theorems. Some of them are complicated and their presentation would divert the reader’s attention from the main topic of the paper. In such cases we indicate where the proofs can be found and analyzed by those who are interested. (shrink)

In this paper, I shall discuss the issue whether the standard meter in Paris is in fact one meter long. Whether one could meaningfully assert this proposition depends on how the unit of length a meter is defined. I would like to suggest three conceivable definitions. One meter long is everything that has the same length as an arbitrary chosen rod S now has. According to the second definition one meter long is everything that coincides in the endpoints with the (...) rod S when placed alongside. The third definition states that one meter long is-in a literal sense-the rod S solely. Other objects are one meter long-although in a derived sense-if they coincide in the endpoints with S when placed alongside. The first definition is in essence the standpoint of Kripke, the second one can be attributed to Wittgenstein, the last definition is the proposal I would like to advocate here. In particular, I hold that the third definition can be attributed to Wittgenstein as well. A language-game of measuring presupposes a preparatory game of fixing a unit of measure. The meaning of the expression "standard meter" must thus be derived from this preparatory game. Therefore with all other objects, one can say only in a derived sense that they are one meter long or not. (shrink)

Moral realism is the doctrine that some propositions asserting that some action is ‘morally’ good are true. This paper examines three different definitions of what it is for an action to be ‘morally’ good which would make moral realism a clear and plausible view. The first defines ‘morally good as ‘overall important to do’; and the second defines it as ‘overall important to do for universalizable reasons’. The paper argues that neither of these definitions is adequate; and it develops the (...) view of Cuneo and Shafer-Landau that we need a definition which is partly in terms of paradigm examples of morally good actions, which they call ‘moral fixed points’. Hence the third and final definition is that an action is morally good if it is ‘overall important to do because this follows from a fundamental universalizable principle, belonging to a system of such principles which includes almost all the moral fixed points; when a suggested fundamental principle is one which would be shown to be very probably true by the exercise of reflective equilibrium over many centuries’. (shrink)

Social robots have limited social competences. This leads us to view them as depictions of social agents rather than actual social agents. However, people also have limited social competences. We argue that all social interaction involves the depiction of social roles and that they originate in, and are defined by, their function in accounting for failures of social competence.

If our concern is to help wisdom to flourish in the world, then the central task before us is to transform academia so that it takes up its proper task of seeking and promoting wisdom instead of just acquiring knowledge. Improving knowledge about wisdom is no substitute; nor is the endeavour of searching for the correct definition of wisdom.

How can you act ethically in a publication system that attempts to regulate research activity in a way that you might find, in many respects, to be unethical? In this article, we address this question by drawing on the Aristotelian perspective of practical wisdom. Drawing on thirty semi-structured interviews with academics working in French business schools, we outline different means through which they act ‘wisely’ by deliberating and focusing on what is within their power and in line with their (...) best judgment. In particular, we show how some of them succeed in performing virtuous actions both within the publication system and beyond. (shrink)

Vietnam has seen fast-rising debts, both domestic and external, in recent years. This paperreviews the literature on credit market in Vietnam, providing an up-to-date take on the domesticlending and borrowing landscape. The study highlights the strong demand for credit in both therural and urban areas, the ubiquity of informal lenders, the recent popularity of consumer financecompanies, as well as the government’s attempts to rein in its swelling public debt. Given thehigh level of borrowing, which is fueled by consumerism and geopolitics, (...) it is inevitable that theamount of debt will soon be higher than the saving of the borrowers. Unlike the conventional wisdom that creditors have more bargaining power over the borrowers, we suggest that—albeitlacking a quantitative estimation—when the debts pile up so high that the borrowers could not repay, the power dynamics may reverse. In this new politics of debt, the lenders fear to lose the money's worth and continue to lend and feed the insolvent debtors. The result is a toxic lending/borrowing market and profound lessons, from which the developing world could learn. (shrink)