This book is the first detailed analysis and interpretation of Kant's ethics as anti-realist and idealist.

Kant's arguments for the reality of human freedom and the normativity of the moral law continue to inspire work in contemporary moral philosophy. Many prominent ethicists invoke Kant, directly or indirectly, in their efforts to derive the authority of moral requirements from a more basic conception of action, agency, or rationality. But many commentators have detected a deep rift between the Groundwork for the Metaphysics of Morals and the Critique of Practical Reason, leaving Kant's project of justification exposed to conflicting assessments and interpretations. In this ground-breaking study of Kant, Owen Ware defends the controversial view that Kant's mature writings on ethics share a unified commitment to the moral law's primacy. Using both close analysis and historical contextualization, Owen Ware overturns a paradigmatic way of reading Kant's arguments for morality and freedom, situating them within Kant's critical methodology at large. The result is a novel understanding of Kant that challenges much of what goes under the banner of Kantian arguments for moral normativity today.

This volume provides a highly needed, comprehensive analysis of Kant's views on proofs for God's existence and explains the radical turns of Kant's accounts. In the "Theory of Heavens" (1755), Kant intended to harmonize the Newtonian laws of motion with a physicotheological argument for the existence of God. But only a few years later, in the "Ground of Proof" essay (1763), Kant defended an ontological ('possibility' or 'modal') argument on the basis of its logical exactitude. Nevertheless he continued to praise the physicotheological argument. In the first "Critique" (1781/7), Kant replaced the traditional constitutive proofs with regulative theoretical and practical arguments. He continued to defend a moral argument in the second "Critique" (1788). But in the third "Critique" (1790), Kant reintroduced a physicotheological besides an ethicotheological argument in order to unify the critical system of philosophy. Kant developed further moral arguments in the "Theodicy" essay (1791) and the "Religion" (1793/4), and still continued to discuss proofs for God's existence in the "OP" (1796–1804). This volume speaks to Kant specialists in the fields of philosophy and theology, but can be used also as an introduction for non-academic readers.

A collection of essays on the foundational themes of freedom and spontaneity in Immanuel Kant's philosophy.

This book is a selective historical and critical study of moral philosophy in the Socratic tradition, with special attention to Aristotelian naturalism. It discusses the main topics of moral philosophy as they have developed historically, including: the human good, human nature, justice, friendship, and morality; the methods of moral inquiry; the virtues and their connexions; will, freedom, and responsibility; reason and emotion; relativism, subjectivism, and realism; the theological aspect of morality. The first volume discusses ancient and mediaeval moral philosophy. The second volume examines early modern moral philosophy from the 16th to the 18th century. This third volume continues the story up to Rawls's Theory of Justice. A comparison between the Kantian and the Aristotelian outlook is one central theme of the third volume. The chapters on Kant compare Kant both with his rationalist and empiricist predecessors and with the Aristotelian naturalist tradition. Reactions to Kant are traced through Hegel, Schopenhauer, Nietzsche, and Kierkegaard. Utilitarian and idealist approaches to Kantian and Aristotelian views are traced through Sidgwick, Bradley, and Green. Mill and Sidgwick provide a link between 18th-century rationalism and sentimentalism and the 20th-century debates in the metaphysics and epistemology of morality. These debates are explored in Moore, Ross, Stevenson, Hare, C.I. Lewis, Heidegger, and in some more recent meta-ethical discussion. This volume concludes with a discussion of Rawls, with special emphasis on a comparison of his position with utilitarianism, intuitionism, Kantianism, naturalism, and idealism. Since this book seeks to be not only descriptive and exegetical, but also philosophical, it discusses the comparative merits of different views, the difficulties that they raise, and how some of the difficulties might be resolved. It presents the leading moral philosophers of the past as participants in a rational discussion in which the contemporary reader can participate.

This volume presents original contributions from former students of Paul Guyer, the 2024 recipient of the International Kant Prize. The authors engage with central aspects of Guyer's work on Kant's critical philosophy, including his metaphysics, ethics, and aesthetics.

This volume presents a selection of Robert Stern's work on the theme of Kantian ethics. It begins by focusing on the relation between Kant's account of obligation and his view of autonomy, arguing that this leaves room for Kant to be a realist about value. Stern then considers where this places Kant in relation to the question of moral scepticism, and in relation to the principle of 'ought implies can', and examines this principle in its own right. The papers then move beyond Kant himself to his wider influence and to critics of his work, including Hegel, the British Idealists, and the Danish philosopher and theologian K. E. Løgstrup, while also offering a comparison with William James's arguments for freedom. The collection concludes with a consideration of a broadly Kantian critique of divine command ethics offered by Stephen Darwall, arguing that the critique does not succeed. General themes considered in this volume therefore include value, perfectionism, agency, autonomy, moral motivation, moral scepticism, and obligation, as well as the historical place of Kant's ethics and its influence on thinkers up to the present day.

Philosophical ethics consists in the human endeavour to answer rationally the fundamental question of how we should live. The Oxford Handbook of the History of Ethics explores the history of philosophical ethics in the western tradition from Homer until the present day. It provides a broad overview of the views of many of the main thinkers, schools, and periods, and includes in addition essays on topics such as autonomy and impartiality. The authors are international leaders in their field, and use their expertise and specialist knowledge to illuminate the relevance of their work to discussions in contemporary ethics. The essays are specially written for this volume, and in each case introduce the reader to the main lines of interpretation and criticism that have arisen in the professional history of philosophy over the past two or three decades.

The central question of naturalism - the relation of philosophy to science - was one of the defining strands of twentieth-century thought and remains a major source of debate and controversy. Today many argue that philosophy should fold itself into the sciences, especially the natural sciences. Liberal naturalists argue that such scientific naturalism demands reductive and Procrustean conceptions of knowledge and reality. Moreover, many philosophical problems are beyond the scope of the sciences, such as the nature of persons, the normativity of the space of reasons, and how best to understand the peculiar mix of objectivity and subjectivity of ethics and art. The Routledge Handbook of Liberal Naturalism is the first collection to present a comprehensive overview of liberal naturalism, a philosophical outlook that lies between scientific naturalism and supernaturalism. Comprising 37 chapters by an international team of contributors, it examines important cutting-edge topics including: what is liberal naturalism? is metaphysics a viable project? naturalism in the history of philosophy, including Hume, Dewey, and Quine contemporary liberal naturalists such as P.F. Strawson, John McDowell, Hilary Putnam, and John Rawls related kinds of naturalism, including subject naturalism, common-sense naturalism and biological naturalism the bearing of liberal naturalism on contemporary debates in epistemology, philosophy of mind, ethics and aesthetics. Essential reading for students and researchers in all areas of philosophy, this volume will be of particular interest for those studying philosophical naturalism, philosophy of science, metaphysics, epistemology, philosophy of mind, ethics and aesthetics.

The problem of free will is one of the oldest and most central philosophical conundrums. The contemporary debate around it has produced a range of sophisticated proposals, but shows no sign of leading to convergence. Christian Onof reviews these contemporary approaches and argues that their main shortcomings are ultimately due to paradoxical requirements on free will imposed by the naturalistic framework. Onof singles out Kant's critical solution as one that stands out among historical approaches insofar as it is based upon a rejection of this framework. By using the same methodological tool that he applies to contemporary proposals, namely a distinction between a volitional account of how we control our actions, a psychological account of the reasons for it and a metaphysical account of our status as agent, Onof shows that Kant's solution constitutes a coherent picture of free will. By exhibiting the structure running through several key publications of Kant's critical period and drawing upon unpublished notes, Onof addresses several debates which loom large in contemporary Kant literature. His exegetical work puts Kant's theory into conversation with contemporary analytic theories of free will and leads to defining a Kantian position that overcomes the issues plaguing existing approaches to the problem of free will.