This paper illuminates the history and design process of the various President’s Flags of the United States of America between 1915 and 1959, in particular focusing on the efforts to produce such a banner for President Harry S. Truman in 1945.

Although the concept of intelligence is difficult to define, research has provided evidence for a significant genetic component. Attempts are now being made to use molecular genetic approaches to identify genes contributing to intelligence, and to determine the ways in which they interact with environmental variables. This research is then likely to determine the developmental pathways of intelligence, in an effort to understand mental handicap and learning disorders and develop new treatment strategies. This paper reviews research on the genetic basis (...) of intelligence, and discusses the ethical concerns, including the role of genetic information, the value we place on intelligence and the allocation of resources. It will be argued that the objections raised are problematic, and that because of the value of this knowledge and the prospect of improving lives, this research is morally required. We will then provide a brief analysis of the issues raised by enhancement of intelligence using genetic technology, and will argue that there is no intrinsic difference between this and other means of optimising intelligence. (shrink)

This paper reports the results of a pilot study of differences in ethical evaluations between business faculty and students at a Southern university. Data were collected from 137 business students (46 freshmen and 67 seniors) and 34 business faculty members. Significant differences were found in 7 of the 30 situations between freshmen and faculty and four situations between seniors and faculty. When the combined means for each group were tested, there was no significant difference in the means at the 0.05 (...) level of significance. A trend was revealed, however, in that the majority of the time faculty members were the most ethically oriented followed by seniors and then freshmen. (shrink)

Philosophers such as Robert Nozick have argued that knowledge must be sensitive, in roughly the sense that if what one knew had been false, one would not have believed it. Such a counterfactual constraint has been used to explain the appeal of scepticism. This chapter argues that no version of the constraint is correct. It also criticizes the variant of Nozick's approach developed by Keith DeRose on which the standard for the application of the word ‘know’ depends on the (...) conversational context. A version of the argument given by Hilary Putnam that if one was a brain in a vat, one could not think that one was constructed using perceptual demonstrative expressions. (shrink)

This chapter critically appraises Audi's theory of normative grounds for belief and action, focusing on the theory's commitment to access and supervenience internalism. It considers Audi's response to two standard objections to internalism about justification—one objection based on content externalism and the other objection concerning memory-based belief—and argues that the objections still do serious damage to internalism. It also considers and criticizes Audi's positive case for internalism, focusing on two arguments: one argument concerning the “availability” of justifiers and the other (...) concerning ‘cases of perfect hallucination’. The chapter concludes that an externalist theory can accommodate Audi's insights and avoid the problems faced by internalist theories. (shrink)

Audi defends his views in epistemology against the challenges raised by Laurence BonJour, Timothy Williamson, and William Alston in Part II, “Knowledge, Justification, and Acceptance.” Specifically, Audi addresses his concerns about the sorts of beliefs that can be noninferentially justified, the sense in which the grounds of justification may be internal, and the range of attitudes that admit of justification and rationality.

0. Logic is sometimes conceived as metaphysically neutral, so that nothing controversial in metaphysics is logically valid. That conception devastates logic. Just about every putative principle of logic has been contested on metaphysical grounds. According to some, future contingencies violate the law of excluded middle; according to others, the set of all sets that are not members of themselves makes a contradiction true. Even the structural principle that chaining together valid arguments yields a valid argument has been rejected in response (...) to sorites paradoxes. In each case, a deviant metaphysics corresponds to the deviant logic. Of course, if one is trying to persuade deviant metaphysicians of the error of their ways, one is unlikely to get far by relying on logical principles that they reject. But that obvious dialectical exigency stably marks out no realm of logic. Each logical principle has persuasive force in some dialectical contexts and not in others. We do better to admit that logic has metaphysically contentious implications, and embrace them ─ if we know what they are. (shrink)

In several texts, Kant announces that there are three distinct mental faculties: cognition, desire, and feeling. This trinitarian commitment should give us pause, for many people operate instead with a dualist model of reason and emotion, where desire and feeling are usually squished together under emotion. Here, as elsewhere, the Kantian model is more complicated. On Kant's view, each of the three faculties has its own specific work to do and generates its own kinds of representations. We do not simply (...) have emotions that... (shrink)

Timothy Williamson, in various places, has put forward an argument that is supposed to show that denying bivalence is absurd. This paper is an examination of the logical force of this argument, which is found wanting.

I argue against ‘right reason’ style accounts of how we should manage our beliefs in the face of higher-order evidence. I start from the observation that such views seem to have bad practical consequences when we imagine someone acting on them. I then catalogs ways that Williamson, Weatherson, and Lasonen-Aarnio have tried to block objections based on these consequences; I argue all fail. I then move on to offer my own theoretical picture of a rational ‘should believe,’ and show (...) that, if such a picture is right, it can neatly explain why right reason isn't. I close by arguing that the extent to which anti-luminosity arguments motivate right reason has been overstated; the positive picture developed here, despite rejecting right reason, is nonetheless consistent with luminosity failures. (shrink)

InSuppose and Tell, Williamson makes a new and original attempt to defend the material conditional account of indicative conditionals. His overarching argument is that this account offers the best explanation of the data concerning how people evaluate and use such conditionals. We argue that Williamson overlooks several important alternative explanations, some of which appear to explain the relevant data at least as well as, or even better than, the material conditional account does. Along the way, we also show (...) that Williamson errs at important junctures about what exactly the relevant data are. (shrink)

This paper considers what distinguishes speech acts such as asserting, stating and claiming from related ones such as suggesting, hinting and conversationally implicating. The distinction cannot be that assertion et al. have a word-to-world direction of fit, since suggesting, hinting, etc., do so as well. The same point applies to attempting to draw the distinction in terms of intentions to induce beliefs, etc. Our proposal, drawing on important ideas from Dummett and Williamson, is that assertion is intimately tied to (...) declara­tive sentences, and to the knowledge norm -albeit in a more roundabout way than they imagined. In particular, declaratives are those devices purpose-built to trigger the knowledge norm; and to assert is to achieve the level of norma­tive commitment, “normative risk”, that one would have achieved had one used a declarative. (shrink)

Although not universally accepted at the time, the atomic hypothesis during the 19th century provided a definite ordering scheme for certain relatively sophisticated chemical phenomena. As such, it was conceptually responsible for the formulation and precise articulation of important seminal ideas in chemical studies. In this paper we will explore this claim with regard to the views of the British chemist Alexander W. Williamson.

Contingentism is the view that it is contingent which things exist. Despite its plausibility, advocates of contingentism face a well-known ‘challenge’ to demonstrate that they can draw what appear to be intelligible modal distinctions (Williamson Modal Logic as Metaphysics. Oxford University Press, Oxford, 2013). In this article, I argue that if certain controversial modal principles fail, the challenge contingentists face becomes much more difficult. Whereas extant challenges concern contingentists’ inability to draw quite theoretical second-order modal distinctions, I present a (...) challenge which concerns contingentists’ inability to draw simpler first-order distinctions. This indicates that in certain modal settings there may well be significant first-order barriers to maintaining contingentism. (shrink)

This special issue of the Canadian Journal of Philosophy is dedicated to Timothy Williamson's work on modality. It consists of a new paper by Williamson followed by papers on Williamson's work on modality, with each followed by a reply by Williamson. -/- Contributors: Andrew Bacon, Kit Fine, Peter Fritz, Jeremy Goodman, John Hawthorne, Øystein Linnebo, Ted Sider, Robert Stalnaker, Meghan Sullivan, Gabriel Uzquiano, Barbara Vetter, Timothy Williamson, Juhani Yli-Vakkuri.

Timothy Williamson gives an original and provocative treatment of deep metaphysical questions about existence, contingency, and change, using the latest resources of quantified modal logic. Contrary to the widespread assumption that logic and metaphysics are disjoint, he argues that modal logic provides a structural core for metaphysics.

Vagueness provides the first comprehensive examination of a topic of increasing importance in metaphysics and the philosophy of logic and language. Timothy Williamson traces the history of this philosophical problem from discussions of the heap paradox in classical Greece to modern formal approaches such as fuzzy logic. He illustrates the problems with views which have taken the position that standard logic and formal semantics do not apply to vague language, and defends the controversial realistic view that vagueness is a (...) kind of ignorance--that there really is a grain of sand whose removal turns a heap into a non-heap, but we cannot know which one it is. (shrink)

When I take off my glasses, the world looks blurred. When I put them back on, it looks sharpedged. I do not think that the world really was blurred; I know that what changed was my relation to the distant physical objects ahead, not those objects themselves. I am more inclined to believe that the world really is and was sharp-edged. Is that belief any more reasonable than the belief that the world really is and was blurred? I see more (...) accurately with my glasses on than off, so visual appearances when they are on have some cognitive priority over visual appearances when they are off. If I must choose which kind of visual appearance to take at face value, I will choose the sharp-edged look. But what should I think when I see a mist, which looks very blurred however well I am seeing? Indeed, why choose to take any of the looks at face value? Why not regard all the choices as illegitimate projections of ways of seeing the world onto the world itself? (shrink)

The second volume in the _Blackwell Brown Lectures in Philosophy_, this volume offers an original and provocative take on the nature and methodology of philosophy. Based on public lectures at Brown University, given by the pre-eminent philosopher, Timothy Williamson Rejects the ideology of the 'linguistic turn', the most distinctive trend of 20th century philosophy Explains the method of philosophy as a development from non-philosophical ways of thinking Suggests new ways of understanding what contemporary and past philosophers are doing.

In this paper we discuss how Causal Decision Theory should be modified to handle a class of problematic cases involving deterministic laws. Causal Decision Theory, as it stands, is problematically biased against your endorsing deterministic propositions (for example it tells you to deny Newtonian physics, regardless of how confident you are of its truth). Our response is that this is not a problem for Causal Decision Theory per se, but arises because of the standard method for assessing the truth of (...) certain counterfactuals. The truth of deterministic laws is `modally fragile' on the standard semantics for counterfactuals: if determinism is true and you were to do otherwise, the laws would be different. We provide two ways of avoiding this problem: 1) supplement the standard semantics for counterfactuals with impossible worlds, or 2) introduce rigid designators into the description of problematic decision situations. We argue that both of these approaches are well-motivated and can be readily incorporated into Lewisian Causal Decision Theory. (shrink)

This chapter presents an overview of the major interpretations of probability followed by an outline of the objective Bayesian interpretation and a discussion of the key challenges it faces. I discuss the ramifications of interpretations of probability and objective Bayesianism for the philosophy of mathematics in general.

The paper clarifies and defends the orthodox view that counterfactual conditionals with impossible antecedents are vacuously true against recent criticisms. It argues that apparent counterexamples to orthodoxy result from uncritical reliance on a fallible heuristic used in the processing of conditionals. A comparison is developed between such counterpossibles and vacuously true universal generalizations.

Understandably absorbed in technical details, discussion of the semantic paradoxes risks losing sight of broad methodological principles. This chapter sketches a general approach to the comparison of rival logics, and applies it to argue that revision of classical propositional logic has much higher costs than its proponents typically recognize.

Imagine a philosophy conference in Presocratic Greece. The hot question is: what are things made of? Followers of Thales say that everything is made of water, followers of Anaximenes that everything is made of air, and followers of Heraclitus that everything is made of fire. Nobody is quite clear what these claims mean, and some question whether the founders of the respective schools ever made them. But amongst the groupies there is a buzz about all the recent exciting progress. The (...) mockers and doubters make plenty of noise too. They point out that no resolution of the dispute between the schools is in sight. They diagnose Thales, Anaximenes and Heraclitus as suffering from a tendency to overgeneralize. We can intelligibly ask what bread is made of, or what houses are made of, but to ask what things in general are made of is senseless, some suggest, because the question is posed without any conception of how to verify an answer; language has gone on holiday. Paleo-pragmatists invite everyone to relax, forget their futile pseudo-inquiries and do something useful instead. (shrink)

The philosophical relevance of experimental psychology is hard to dispute. Much more controversial is the so‐called negative program's critique of armchair philosophical methodology, in particular the reliance on ‘intuitions’ about thought experiments. This chapter responds to that critique. It argues that, since the negative program has been forced to extend the category of intuition to ordinary judgments about real‐life cases, the critique is in immediate danger of generating into global scepticism, because all human judgments turn out to depend on intuitions. (...) Recently, some proponents of the negative program have tried to demarcate the target of their critique more narrowly. However, their attempts are still far too indiscriminate, and over‐generate scepticism. Nevertheless, once experimental philosophy has refined its own methodology, it may contribute to the refinement of the methodology of mainstream philosophy, by filtering out the effects of cognitive bias, although it offers no prospect of doing without judgments on real or imaginary cases. (shrink)

The impressive variation amongst biological individuals generates many complexities in addressing the simple-sounding question what is a biological individual? A distinction between evolutionary and physiological individuals is useful in thinking about biological individuals, as is attention to the kinds of groups, such as superorganisms and species, that have sometimes been thought of as biological individuals. More fully understanding the conceptual space that biological individuals occupy also involves considering a range of other concepts, such as life, reproduction, and agency. There has (...) been a focus in some recent discussions by both philosophers and biologists on how evolutionary individuals are created and regulated, as well as continuing work on the evolution of individuality. (shrink)

This paper offers an overview of "the species problem", arguing for a view of species as homeostatic property cluster kinds, positioning the resulting form of realism about species as an alternative to the claim that species are individuals and pluralistic views of species. It draws on taxonomic practice in the neurosciences, especially of neural crest cells and retinal ganglion cells, to motivate both the rejection of the species-as-individuals thesis and species pluralism.

This chapter aims to attempt no more than to make some informal and unsystematic remarks on the transformation of analytic philosophy. It deals with a few sketchy remarks on the historiography of recent analytic philosophy. Writing in 1981, David Lewis described “a reasonable goal for a philosopher” as bringing one’s opinions into stable equilibrium. A natural comparison is between Lewis’s Quinean or at least post‐Quinean methodology and the methodology of Peter Strawson, Quine’s leading opponent from the tradition of ordinary language (...) philosophy. Analytic epistemology provides a good case study of the philosophical application of Gricean pragmatics outside the philosophy of language. On Michael Dummett picture of the history of philosophy, Descartes had made epistemology first philosophy, the engine for the rest of philosophy, and then Frege had replaced epistemology by the philosophy of language as first philosophy. The chapter suggests that philosophy sometimes already uses an abductive methodology and ought to use it more in the future. (shrink)

This paper explores the relationship between eugenics, disability, and dehumanization, with a focus on forms of eugenics beyond Nazi eugenics.

Are interpersonal comparisons of desire possible? Can we give an account of how facts about desires are grounded, that underpins such comparisons? This paper supposes the answer to the first question is yes, and provides an account of the nature of desire that explains how this is so. The account is a modification of the interpretationist metaphysics of representation that the author has recently been developing. The modification is to allow phenomenological affective valence into the “base facts” on which correct (...) interpretation is grounded. To use this extra resource within that theory to vindicate interpersonal comparisons, we will need to appeal rational connections between level of valence and level of desire, which this paper sets out and examines. (shrink)

Drawing on a passage from Ramsey's Truth and Probability, we formulate a simple, plausible constraint on evaluating the accuracy of credences: the Calibration Test. We show that any additive, continuous accuracy measure that passes the Calibration Test will be strictly proper. Strictly proper accuracy measures are known to support the touchstone results of accuracy-first epistemology, for example vindications of probabilism and conditionalization. We show that our use of Calibration is an improvement on previous such appeals by showing how it answers (...) or sidesteps problems that have been raised for previous work in this area. (shrink)

Two opposing tendencies in the philosophy of language go by the names of ‘referentialism’ and ‘inferentialism’ respectively. In the crudest version of the contrast, the referentialist account of meaning gives centre stage to the referential semantics for a language, which is then used to explain the inference rules for the language, perhaps as those which preserve truth on that semantics (since a referential semantics for a language determines the truth-conditions of its sentences). By contrast, the inferentialist account of meaning gives (...) centre stage to the inference rules for the language, which are then used to explain its referential semantics, perhaps as the semantics on which the rules preserve truth. On pain of circularity, we cannot combine both directions of explanation. (shrink)