Fictionalism is the view that a serious intellectual inquiry need not aim at truth. Since 1980, fictionalist accounts of science, mathematics, morality, and other domains of inquiry have been developed. In metaphysics fictionalism is now widely regarded as an option worthy of serious consideration. This volume represents a major benchmark in the debate: it brings together an impressive international team of contributors, whose essays (all but one of them appearing here for the first time) represent the state of the art in various areas of metaphysical controversy, relating to language, mathematics, modality, truth, belief, ontology, and morality.

Mark Eli Kalderon presents an original study in the philosophy of perception written in the medium of historiography. He considers the phenomenology and metaphysics of sensory presentation through the examination of an ancient aporia. Specifically, he argues that a puzzle about perception at a distance is behind Empedocles' theory of vision. Empedocles conceives of perception as a mode of material assimilation, but this raises a puzzle about color vision, since color vision seems to present colors that inhere in distant objects. But if the colors inhere in distant objects how can they be taken in by the organ of sight and so be palpable to sense? Aristotle purports to resolve this puzzle in his definition of perception as the assimilation of sensible form without the matter of the perceived particular. Aristotle explicitly criticizes Empedocles, though he is keen to retain the idea that perception is a mode of assimilation, if not a material mode. Aristotle's notorious definition has long puzzled commentators. Kalderon shows how, read in light of Empedoclean puzzlement about the sensory presentation of remote objects, Aristotle's definition of perception can be better understood. Moreover, when so read, the resulting conception of perception is both attractive and defensible.

Moral realists maintain that morality has a distinctive subject matter. Specifically, realists maintain that moral discourse is representational, that moral sentences express moral propositions - propositions that attribute moral properties to things. Noncognitivists, in contrast, maintain that the realist imagery associated with morality is a fiction, a reification of our noncognitive attitudes. The thought that there is a distinctively moral subject matter is regarded as something to be debunked by philosophical reflection on the way moral discourse mediates and makes public our noncognitive attitudes. The realist fiction might be understood as a philosophical misconception of a discourse that is not fundamentally representational but whose intent is rather practical. There is, however, another way to understand the realist fiction. Perhaps the subject matter of morality is a fiction that stands in no need of debunking, but is rather the means by which our attitudes are conveyed. Perhaps moral sentences express moral propositions, just as the realist maintains, but in accepting a moral sentence competent speakers do not believe the moral proposition expressed but rather adopt the relevant non-cognitive attitudes. Noncognitivism, in its primary sense, is a claim about moral acceptance: the acceptance of a moral sentence is not moral belief but is some other attitude. Standardly, non-cognitivism has been linked to non-factualism - the claim that the content of a moral sentence does not consist in its expressing a moral proposition. Indeed, the terms 'noncognitivism' and 'nonfactualism' have been used interchangeably. But this misses an important possibility, since moral content may be representational but the acceptance of moral sentences might not be belief in the moral proposition expressed. This possibility constitutes a novel form of noncognitivism, moral fictionalism. Whereas nonfactualists seek to debunk the realist fiction of a moral subject matter, the moral fictionalist claims that that fiction stands in no need of debunking but is the means by which the noncognitive attitudes involved in moral acceptance are conveyed by moral utterance. Moral fictionalism is noncognitivism without a non-representational semantics.

This volume offers a wide-ranging study on perception in the Timaeus, not only discussing senses such as touch, taste, and olfaction alongside audition and vision, but also engaging with Timaeus’ wider cosmological project. There is no other book-length study on perception in the Timaeus.

Fictionalism is the view that a serious intellectual inquiry need not aim at truth. It came to prominence in philosophy in 1980, when Hartry Field argued that mathematics does not have to be true to be good, and Bas van Fraassen argued that the aim of science is not truth but empirical adequacy. Both suggested that the acceptance of a mathematical or scientific theory need not involve belief in its content. Thus the distinctive commitment of fictionalism is that acceptance in a given domain of inquiry need not be truth-normed, and that the acceptance of a sentence from the associated region of discourse need not involve belief in its content. In metaphysics fictionalism is now widely regarded as an option worthy of serious consideration. This volume represents a major benchmark in the debate: it brings together an impressive international team of contributors, whose essays (all but one of them appearing here for the first time) represent the state of the art in various areas of metaphysical controversy, relating to language, mathematics, modality, truth, belief, ontology, and morality.

Moral realists maintain that morality has a distinctive subject matter. Specifically, realists maintain that moral discourse is representational, that moral sentences express moral propositions - propositions that attribute moral properties to things. Non-cognitivists, in contrast, maintain that the realist imagery associated with morality is a fiction, a reification of our non-cognitive attitudes. The thought that there is a distinctively moral subject matter is regarded as something to be debunked by philosophical reflection on the way moral discourse mediates and makes public our noncognitive attitudes. The realist fiction might be understood as a philosophical misconception of a discourse that is not fundamentally representational but whose intent is rather practical. There is, however, another way to understand the realist fiction. Perhaps the subject matter of morality is a fiction that stands in no need of debunking, but is rather the means by which our attitudes are conveyed. Perhaps moral sentences express moral propositions, just as the realist maintains, but in accepting a moral sentence competent speakers do not believe the moral proposition expressed but rather adopt the relevant non-cognitive attitudes. Non-cognitivism, in its primary sense, is a claim about moral acceptance: the acceptance of a moral sentence is not moral belief but is some other attitude. Standardly, non-cognitivism has been linked to non-factualism - the claim that the content of a moral sentence does not consist in its expressing a moral proposition. Indeed, the terms 'non-cognitivism' and 'non-factualism' have been used interchangeably. But this misses an important possibility, since moral content may be representational but the acceptance of moral sentences might not be belief in the moral proposition expressed. This possibility constitutes a novel form of non-cognitivism, moral fictionalism. Whereas non-factualists seek to debunk the realist fiction of a moral subject matter, the moral fictionalist claims that that fiction stands in no need of debunking but is the means by which the non-cognitive attitudes involved in moral acceptance are conveyed by moral utterance. Moral fictionalism is non-cognitivism without a non-representational semantics.

The philosophy of perception has been an important topic throughout history, appealing to thinkers in antiquity and the middle ages as well as to figures such as Kant, Bergson and others. In this wide-ranging study, Mark Eli Kalderon presents multiple perspectives on the general nature of perception, discussing touch and hearing as well as vision. He draws on the rich history of the subject and shows how analytic and continental approaches to it are connected, providing readers with insights from both traditions and arguing for new orientations when thinking about the presentation of perception. His discussion addresses issues including tactile metaphors, sympathy in relation to the concept of fellow-feeling, and the Wave Theory of sound. His comprehensive and thoughtful study presents bold and systematic investigations into current theory, informed by centuries of philosophical enquiry, and will be important for those working on ontological and metaphysical aspects of perception and feeling.