Richard Joyce

Simon Kirchin

What kind of properties are moral qualities, such as rightness, badness, etc? Some ethicists doubt that there are any such properties; they maintain that thinking that something is morally wrong (for example) is comparable to thinking that something is a unicorn or a ghost. These "moral error theorists" argue that the world simply does not contain the kind of properties or objects necessary to render our moral judgments true. This radical form of moral skepticism was championed by the philosopher John Mackie (1917-1981). This anthology is a collection of philosophical essays critically examining Mackie’s view.

Essays on John Mackie's Moral Error Theory

A World Without Values

What is the difference between judging someone to be good and judging them to be kind? Both judgements are typically positive, but the latter seems to offer more description of the person: we get a more specific sense of what they are like. Very general evaluative concepts (such as good, bad, right and wrong) are referred to as thin concepts, whilst more specific ones (including brave, rude, gracious, wicked, sympathetic, and mean) are termed thick concepts. In this volume, an international team of experts addresses the questions that this distinction opens up. How do the descriptive and evaluative functions or elements of thick concepts combine with each other? Are these functions or elements separable in the first place? Is there a sharp division between thin and thick concepts? Can we mark interesting further distinctions between how thick ethical concepts work and how other thick concepts work, such as those found in aesthetics and epistemology? How, if at all, are thick concepts related to reasons and action? These questions, and others, touch on some of the deepest philosophical issues about the evaluative and normative. They force us to think hard about the place of the evaluative in a (seemingly) nonevaluative world, and raise fascinating issues about how language works.

Thick Concepts

This is an open access title available under the terms of a CC BY-NC-ND 4.0 International licence. It is free to read at Oxford Scholarship Online and offered as a free PDF download from OUP and selected open access locations. We use evaluative terms and concepts every day. We call actions right and wrong, teachers wise and ignorant, and pictures elegant and grotesque. Philosophers place evaluative concepts into two camps. Thin concepts, such as goodness and badness, and rightness and wrongness have evaluative content, but they supposedly have no or hardly any nonevaluative, descriptive content: they supposedly give little or no specific idea about the character of the person or thing described. In contrast, thick concepts such as kindness, elegance and wisdom supposedly give a more specific idea of people or things. Yet, given typical linguistic conventions, thick concepts also convey evaluation. Kind people are often viewed positively whilst ignorance has negative connotations. The distinction between thin and thick concepts is frequently drawn in philosophy and is central to everyday life. However, very few articles or books discuss the distinction. In this full-length study, Simon Kirchin discusses thin and thick concepts, highlighting key assumptions, questions and arguments, many of which have gone unnoticed. Kirchin focuses in on the debate between 'separationists' (those who think that thick concepts can be separated into component parts of evaluative, often very 'thin', content and nonevaluative content) and 'nonseparationists' (who deny this). Thick Evaluation argues for a version of nonseparationism, and in doing so argues both that many concepts are evaluative and also that evaluation is not exhausted by thin positive and negative stances.

Thick Evaluation

The descriptions 'good' and 'bad' are examples of thin concepts, as opposed to 'kind' or 'cruel' which are thick concepts. Simon Kirchin provides one of the first full-length studies of the crucial distinction between 'thin' and 'thick' concepts, which is fundamental to many debates in ethics, aesthetics and epistemology.

An international team of experts explores the distinction between 'thin' concepts (general, evaluative terms like 'good' and 'bad') and 'thick' concepts (more specific concepts, such as 'brave', or 'rude'). Their essays touch on key debates in metaethics about the evaluative and normative, and raise fascinating questions about how language works.

Andrew Fisher

A contemporary collection of readings in metaethics, this work discusses whether moral properties exist and how they fit into the world as science conceives it. It is useful for the study of metaethics at undergraduate and postgraduate level.

Arguing about Metaethics

Derek Parfit was one of the world’s leading philosophers. His On What Matters was the most eagerly awaited book in philosophy for many years. Reading Parfit: On What Matters is an essential overview and assessment of volumes 1 and 2 of Parfit’s monumental work by a team of international contributors, and includes responses by Parfit himself. It discusses central features of Parfit’s book, including the structure and nature of reasons; the ideas underlying moral principles; Parfit’s discussions of consequentialism, contractualism and Kantian deontology; and his metaethical ideas and arguments. Reading Parfit will be central reading for students of ethics and anyone seeking a deeper understanding of one of the most important works of philosophy published in the last fifty years.

Simon Kirchin

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