Includes a chapter on visual perception.

How can intuitions be used to validate or invalidate a philosophical theory? An intuition about a case seems to be a basic evidential source for the truth of that intuition, i.e., for the truth of the claim that a particular example is or isn’t an instance of a philosophically interesting kind, concept, or predicate. A mental‐state type is a basic evidential source only if its tokens reliably indicate the truth of their contents. The best way to account for intuitions being (...) a basic evidential source is to interpret their subject matter in psychologistic terms. Intuitions provide evidence about the contents of the intuiter's concept, where “concept” is understood as a psychological structure. (shrink)

The phenomenology of a priori intuition is explored at length (where a priori intuition is taken to be not a form of belief but rather a form of seeming, specifically intellectual as opposed to sensory seeming). Various reductive accounts of intuition are criticized, and Humean empiricism (which, unlike radical empiricism, does admit analyticity intuitions as evidence) is shown to be epistemically self-defeating. This paper also recapitulates the defense of the thesis of the Autonomy and Authority of Philosophy given in the (...) author’s “A Priori Knowledge and the Scope of Philosophy” (Philosophical Studies, 1996). (shrink)

First published in 1903, this volume revolutionized philosophy and forever altered the direction of ethical studies. A philosopher’s philosopher, G. E. Moore was the idol of the Bloomsbury group, and Lytton Strachey declared that Principia Ethica marked the rebirth of the Age of Reason. This work clarifies some of moral philosophy’s most common confusions and redefines the science’s terminology. Six chapters explore: the subject matter of ethics, naturalistic ethics, hedonism, metaphysical ethics, ethics in relation to conduct, and the ideal. Moore's (...) simplicity of style and precise use of everyday language exercised an enormous influence on the development of analytic philosophy, and they contribute to the continuing resonance of his compelling arguments. (shrink)

By contributing a few hundred dollars to a charity like UNICEF, a prosperous person can ensure that fewer poor children die, and that more will live reasonably long, worthwhile lives. Even when knowing this, however, most people send nothing, and almost all of the rest send little. What is the moral status of this behavior? To such common cases of letting die, our untutored response is that, while it is not very good, neither is the conduct wrong. What is the (...) source of this lenient assessment? In this contentious new book, one of our leading philosophers argues that our intuitions about ethical cases are generated not by basic moral values, but by certain distracting psychological dispositions that all too often prevent us from reacting in accord with our commitments. Through a detailed look at how these tendencies operate, Unger shows that, on the good morality that we already accept, the fatally unhelpful behavior is monstrously wrong. By uncovering the eminently sensible ethics that we've already embraced fully, and by confronting us with empirical facts and with easily followed instructions for lessening serious suffering appropriately and effectively, Unger's book points the way to a compassionate new moral philosophy. (shrink)

Chapter INTRODUCTION i. The Problem Why suppose that sense perception is, by and large, an accurate source of information about the physical environment? ...

The view that moral cognition is subserved by a two-tieredarchitecture is defended: Moral reasoning is the result both ofspecialized, informationally encapsulated modules which automaticallyand effortlessly generate intuitions; and of general-purpose,cognitively penetrable mechanisms which enable moral judgment in thelight of the agent's general fund of knowledge. This view is contrastedwith rival architectures of social/moral cognition, such as Cosmidesand Tooby's view that the mind is wholly modular, and it is argued thata two-tiered architecture is more plausible.

Probably to most students of Moral Philosophy there comes a time when they feel a vague sense of dissatisfaction with the whole subject. And the sense of dissatisfaction tends to grow rather than to diminish. It is not so much that the positions, and still more the arguments, of particular thinkers seem unconvincing, though this is true. It is rather that the aim of the subject becomes increasingly obscure. "What," it is asked, "are we really going to learn by Moral (...) Philosophy?" "What are books on Moral Philosophy really trying to show, and when their aim is clear, why are they so unconvincing and artificial?" And again: "Why is it so difficult to substitute anything better?" Personally, I have been led by growing dissatisfaction of this kind to wonder whether the reason may not be that the subject, at any rate as usually understood, consists in the attempt to answer an improper question. And in this article, I shall venture to contend that the existence of the whole subject, as usually understood, rests on a mistake, and on a mistake parallel to that on which rests, as I think, the subject usually called the Theory of Knowledge. (shrink)

To what extent can philosophical thought experiments reveal norms? Some ethicists have argued that certain thought experiments reveal that people draw a morally significant distinction between "doing" and "allowing". I examine one such thought experiment in detail and argue that the intuitions it elicits can be explained by "prospect theory", a psychological theory about the way people reason. The extent to which such alternative explanations of the results of thought experiments in philosophy are generally available is an empirical question.

Marc Hauser puts forth the theory that humans have evolved a universal moral instinct, unconsciously propelling us to deliver judgments of right and wrong independent of gender, education, and religion. Combining his cutting-edge research with the latest findings in cognitive psychology, linguistics, neuroscience, evolutionary biology, economics, and anthropology, Hauser explores the startling implications of his provocative theory vis-à-vis contemporary bioethics, religion, the law, and our everyday lives.

Intuitions play a critical role in analytical philosophical activity. But do they qualify as genuine evidence for the sorts of conclusions philosophers seek? Skeptical arguments against intuitions are reviewed, and a variety of ways of trying to legitimate them are considered. A defense is offered of their evidential status by showing how their evidential status can be embedded in a naturalistic framework.

This book is divided into three parts: in Part I, R. M. Hare offers a justification for the use of philosophy of language in the treatment of moral questions, together with an overview of his moral philosophy of ‘universal prescriptivism’. The second part, and the core of the book, consists of five chapters originally presented as a lecture series under the title ‘A Taxonomy of Ethical Theories’. Hare identifies descriptivism and non‐descriptivism as the two main positions in modern moral philosophy. (...) The former he divides into Naturalism and Intuitionism, and the latter into Emotivism and Rationalism. Hare argues that all forms of descriptivism tend to lead to Relativism because the truth conditions of moral statements are culturally variant. Of the positions discussed, only Hare's own position, a form of Rationalism, which he calls Universal Prescriptivism, meets all of the requirements that an adequate ethical theory should meet. Part III consists of Hare's previously published essay ‘Could Kant have been a Utilitarian?’ (Utilitas 5, 1993). Here, Hare puts forward the controversial thesis that Kant's moral philosophy is, in its basic principles, compatible with utilitarianism. (shrink)

This chapter examines several ways in which philosophical attention to intuition can contribute to empirical scientific psychology. The authors then discuss one prevalent misuse of intuition. An unspoken assumption of much argumentation in the philosophy of mind has been that to articulate our folk psychological intuitions, our ordinary concepts of belief, truth, meaning, and so forth, is itself sufficient to give a theoretical account of what belief, truth, meaning, and so forth, actually are. It is believed that this assumption rests (...) on an inadequate understanding of the nature of intuition and its appropriate applications, and that it results in errors. Three notable examples of this sort of misuse of intuition in philosophy are briefly discussed. Finally, the authors provide developmental evidence for the mutability and fallibility of everyday intuitions about the mind, evidence that undermines arguments, that depend on taking such intuitions as a final authority for substantive claims about what the mind is like. (shrink)

Most people interested in the problems of ethics aspire to two kinds of knowledge, one systematic, the other historical. They wish a systematic understanding of the field: knowledge of what are the various problems and their interrelations and knowledge of what has been done toward the solution of these problems. They also wish to learn what the great historical philosophers -- particularly those who have had the most important ideas about values and conduct -- have said about the subject. This (...) book is intended to enable the reader to approximate the achievement of these twin goals at once. (shrink)