The possibility of error conditions the possibility of normative principles. I argue that extant interpretations of this condition undermine the possibility of normative principles for our action because they implicitly treat error as a perfection of an action. I then explain how a constitutivist metaphysics of capacities explains why error is an imperfection of an action. Finally, I describe and defend the interpretation of the error condition which follows.

Call generalism about children’s and adults’ wellbeing the thesis that the same theory of wellbeing applies to both children and adults. Our goal is to examine whether generalism is true. While this question has not received much attention in the past, it has recently been suggested that generalism is likely to be false and that we need to elaborate different theories of children’s and adults’ wellbeing. In this paper, we defend generalism against the main objections it faces and make a positive case for it.

Frege begins his exposition of the symbol system employed in his Begriffsschrift by introducing the sign ⟝, whereby, he says, “[a] judgment is always to be expressed” (p. 1 ).

A-theorists think there is a fundamental difference between the present and other times. This concern shows up in what kinds of properties they take to be instantiated, what objects they think exist and how they formalize their views. Nearly every contemporary A-theorist assumes that her metaphysics requires a tense logic – a logic with operators like (‘it was the case that...’) and (‘it will be the case that...’). In this paper, I show that there is at least one viable A-theory that does not require a logic with tense operators. And I will argue that three common indispensability arguments for tense operators are unsound.

According to the JUSTIFIED FAIR COINS principle, if I know that a coin is fair, and I lack justification for believing that it won’t be flipped, then I lack justification for believing that it won’t land tails. What this principle says, in effect, is that the only way to have justification for believing that a fair coin won’t land tails, is by having justification for believing that it won’t be flipped at all. Although this seems a plausible and innocuous principle, in a recent paper Dorr, Goodman and Hawthorne use it in devising an intriguing puzzle which places all justified beliefs about the future in jeopardy. They point out, further, that one very widespread theory of justification predicts that JUSTIFIED FAIR COINS is false, giving us additional reason to reject it. In this paper, I will attempt to turn this dialectic around. I will argue that JUSTIFIED FAIR COINS does not inevitably lead to scepticism about the future, and the fact that it is incompatible with a widespread theory of justification may give us reason to doubt the theory. I will outline an alternative theory of justification that predicts both that JUSTIFIED FAIR COINS is true and that we have justification for believing much about the future.

Philosophers, psychiatrists, and social scientists would welcome clarification of the distinction between rational and irrational desires. It may be proper to say that rational desires are those which manifest rationality (or which at least do not conflict with its manifestations). But since this seems a rather unilluminating characterization, philosophers sometimes offer definitions of what constitute such manifestations of rationality. I shall consider definitions provided by John Rawls and Richard Brandt. Their definitions are unsatisfactory mainly because they include subjunctive conditionals. An alternative approach, which avoids conditionals, is attractive. But it encounters so many additional problems that I shall conclude that we are not now in a position to define rationality in this area and must treat it as a state or disposition which to date has only been partially characterized. Thus, if we want a definition of the difference between rational and irrational desires, we must at present settle for the rather unexciting one mentioned above.

For quite a long time now I have argued against the view, widely held, and forcefully expounded by John Burnet, that at Phaedo 102b2-d2 Plato is formulating the notion of essential attribute and contrasting essence with accident. I have claimed that the essence-accident contrast is absent from that passage. This is a view that others have also held. But I have since 1950 found in that passage (as well as in some preceding ones) a formidable theory of relations. Recently, Professor David Gallop has taken me to task for my heterodoxy. His reaction is overwhelming:

Gallop's paper is very tantalizing. Although he establishes neither A nor B, he does offer a series of very extraordinary arguments, whose examination reveals the depth of Plato's thinking on relations.

The year before his death, Hume asked his publisher to affix an advertisement to all existing and future editions of his works. In this advertisement, Hume disavows the Treatise and directs all criticism to his later work. Hume himself is relatively clear as to why he preferred this later work. In his autobiography, when discussing the poor public reception given his Treatise, Hume says, ‘I had always entertained a Notion, that my want of Success in publishing the Treatise of human nature, had proceeded more from the manner than the matter; and that I had been guilty of a very usual Indiscretion, in going to the Press too early.’ In a letter to Gilbert Elliot, written in 1751, Hume says that ‘The philosophical Principles are the same in both’ the Treatise and the first Enquiry.

William James criticizes Hume for failing to adhere to the strictly empiricist method when he postulates discrete constituents of experience — which Hume calls perceptions — thereby making our experience a train of disconnected pieces. James argues that the discontinuity of experience in Hume results in part from his failure to recognize the immediate presence of relations in experience. Emphasizing a continuity and unity of experience, James thus differentiates his empiricism from Hume's as being radical in the sense that it recognizes relations as ‘real’ parts of experience just as are things that are experienced to be so related. This raises a question concerning the experiential status of relations in Hume: is James correct in accusing Hume of failing to notice the experiential reality of relations? Does Hume deny the experiential reality of relations entirely? Or does Hume downplay the experiential reality of relations and come to take them merely as products of the imagination, hence not ‘real,’ for certain theoretical reasons?

I consider the contrast between Leibniz's relational concept of spacetime and Einstein's special and general theories of relativity. I suggest that there are two interpretations of Leibniz's view, which I call L1 and L2. L1 amounts to saying that there is no real inertial structure to spacetime, whereas in general relativity the inertial structure is dynamical or real in Lande's sense (see Popper, 46); i.e., it can be ‘kicked’ and ‘kicks back,’ causing gravitational effects. If there is no real inertial structure to space-time then, as Weyl points out (Weyl, 105), the concept of the relative motive of several bodies has no more foundation than the concept of absolute motion for a single body. Thus, L1 seems to be untenable. L2 is a more sophisticated view which rejects the geometrical aspect of Newtonian space-time as a container for events, but accepts the existence of a real structure which determines the inertial properties of matter.

Nietzsche takes moral judgments to be false beliefs, and encourages us to pursue subjective nonmoral value arising from our passions. His view that strong and unified passions make one virtuous is mathematically derivable from this subjectivism and a conceptual analysis of virtue, explaining his evaluations of character and the nature of the Overman.

Making sense of Kant’s claim that it is morally necessary for us to believe in the immortal soul is a historically fraught issue. Commentators typically reject it, or take one of two paths: they either restrict belief in the immortal soul to our subjective psychology, draining it of any substantive rational grounding; or make it out to be a rational necessity that morally interested beings must accept on pain of contradiction. Against these interpreters, I argue that on Kant’s view, belief in our immortality is necessary because it further determines and enriches the cognitive content contained in the concept of the highest good. Through this sharpened conceptual content, we acquire the resources to withstand theoretical skepticism about our moral vocation.

This paper argues for the existence of a certain type of defeater for one’s belief that P—the presence of social incentives not to share evidence against P. Such pressure makes it relatively likely that there is unpossessed evidence that would provide defeaters for P because it makes it likely that the evidence we have is a lopsided subset. This offers, I suggest, a rational reconstruction of a core strand of argument in Mill’s On Liberty. A consequence of the argument is that on morally and politically laden issues in particular, a high degree of doxastic openness might be appropriate.

Donald Davidson has two central aims in his celebrated paper ‘Mental Events.’ First, he argues for the impossibility of ‘strict … laws on the basis of which mental events can be predicted and explained’ (ME, 208). I shall call the resulting view ‘mental anomalism.’ Second, he argues, based partially on this impossibility, for a version of monism which holds that every (causally interacting) mental event is token-identical with some physical event. This second aim puts constraints on how the argument for mental anomalism can plausibly proceed. That argument cannot assume anything that presupposes monism or adversely affects the argument for it. When elaborated, this constraint by itself rules out otherwise attractive conceptions of how the argument for mental anomalism works. More generally, in order to be compelling, the overall argument for anomalous monism ought not to incorporate excessively controversial presuppositions even if they do not themselves beg any questions about monism. The argument needs to be built upon relatively intuitive premises.

What are the objects of the so-called ‘propositional attitudes’ — belief, desire, and the like? One of the best-known accounts holds them to be sentences. According to this account — which I shall call the ‘linguistic theory’ — an analysis of the logical form of a sentence like

• (1) John believes that the moon is round

will see the word ‘that’ as a hidden pair of quotation marks: except for niceties of idiom, (1) might be written

• (2) John believes ‘the moon is round’.

(2) asserts that a certain relation, the ‘believes’-relation, holds between John and the sentence ‘the moon is round’.

One argument often made in support of liberal political morality is that liberalism, both as a theory and as a practice, is neutral in regard to the question of the good life. In this essay, I shall criticize and reject this argument. Now this conclusion is anything but novel; one would have almost as much difficulty finding a critic, of whatever perspective, granting that liberalism is indeed neutral with regard to the good as one would have finding a liberal denying it. It is this phenomenon that I find especially interesting, and which serves to set the context of my discussion. If, as I aim to show, it is a relatively straightforward path of argument which leads to the conclusion that liberalism is not neutral with regard to the question of the good life, then why do so many liberals remain convinced that it is? Why, when liberals and their critics debate the issue of neutrality, do they so often seem to talk beyond one another? It seems to me that instances of these debates ought to come off better than they do, and so I shall attempt here to describe how they might.

Peter Geach famously holds that there is no such thing as absolute identity. There are rather, as Geach sees it, a variety of relative identity relations, each essentially connected with a particular monadic predicate. Though we can strictly and meaningfully say that an individual a is the same man as the individual b, or that a is the same statue as b, we cannot, on this view, strictly and meaningfully say that the individual a simply is b.

It is difficult to find anything like a persuasive argument for this doctrine in Geach’s work. But one claim made by Geach is that his account of identity is the account most naturally aligned with Frege's widely admired treatment of cardinality. And though this claim of an affinity between Frege's and Geach's doctrines has been challenged, the challenge has been resisted. William Alston and Jonathan Bennett, indeed, go further than Geach to argue that Frege's doctrine implies Geach's.

With very few exceptions philosophers believe that no account of the doctrine of divine omnipotence is adequate if it entails that God can do what is logically impossible. Descartes is credited with believing otherwise. In his article ‘Descartes on the Creation of the Eternal Truths’ (The Philosophical Review, 86, 1977) Harry Frankfurt attributes to Descartes the belief that God is ‘a being for whom the logically impossible is possible’ (44). In addition, Frankfurt claims that because of this belief Descartes’ account of God's omnipotence is open to the charge of being incoherent. I will argue that it is wrong to attribute this belief to Descartes and that if his account of divine omnipotence is incoherent, it is incoherent for reasons other than that it entails the possibility of what is logically impossible.