The philosophical writings of Otto Neurath, and their central themes, have been described many times, by Carnap in his authobiographical essay, by Ayer and Morris and Kraft decades ago, by Haller and Hegselmann and Nemeth and others in recent years. How extraordinary Neurath's insights were, even when they perhaps were more to be seen as conjectures, aperfus, philosophical hypotheses, tools to be taken up and used in the practical workshop of life; and how prescient he was. A few examples may be helpful: (1) Neurath's 1912 lecture on the conceptual critique of the idea of a pleasure maximum [ON 50] substantially anticipates the development of aspects of analytical ethics in mid-century. (2) Neurath's 1915 paper on alternative hypotheses, and systems of hypotheses, within the science of physical optics [ON 81] gives a lucid account of the historically-developed clashing theories of light, their un realized further possibilities, and the implied contingencies of theory survival in science, all within his framework that antedates not only the quite similar work of Kuhn so many years later but also of the Vienna Circle too. (3) Neurath's subsequent paper of 1916 investigates the inadequacies of various attempts to classify systems of hypotheses [ON 82, and this volume], and sets forth a pioneering conception of the metatheoretical task of scientific philosophy.

This important new book is the first of a series of volumes collecting the essential articles by the eminent and highly influential philosopher Saul A. Kripke. It presents a mixture of published and unpublished articles from various stages of Kripke's storied career. Included here are seminal and much discussed pieces such as "Identity and Necessity", "Outline of a Theory of Truth", "Speaker's Reference and Semantic Reference", and "A Puzzle About Belief." More recent published articles include "Russell's Notion of Scope" and "Frege's Theory of Sense and Reference" among others. Several articles are published here for the first time, including both older works ("Two Paradoxes of Knowledge", "Vacuous Names and Fictional Entities", "Nozick on Knowledge") as well as newer ("The First Person" and "Unrestricted Exportation"). "A Puzzle on Time and Thought" was written expressly for this volume. Publication of this volume -- which ranges over epistemology, linguistics, pragmatics, philosophy of language, history of analytic philosophy, theory of truth, and metaphysics -- represents a major event in contemporary analytic philosophy. It will be of great interest to the many who are interested in the work of one its greatest living figures.

The first of two volumes collecting the published work of one of the greatest living ancient philosophers, M.F. Burnyeat.

The selections contained in these volumes from the papers and letters of Leibniz are intended to serve the student in two ways: first, by providing a more adequate and balanced conception of the full range and penetration of Leibniz's creative intellectual powers; second, by inviting a fresher approach to his intellectual growth and a clearer perception of the internal strains in his thinking, through a chronological arrangement. Much confusion has arisen in the past through a neglect of the develop ment of Leibniz's ideas, and Couturat's impressive plea, in his edition of the Opuscu/es et fragments (p. xii), for such an arrangement is valid even for incomplete editions. The beginning student will do well, however, to read the maturer writings of Parts II, III, and IV first, leaving Part I, from a period too largely neglected by Leibniz criticism, for a later study of the still obscure sources and motives of his thought. The Introduction aims primarily to provide cultural orientation and an exposition of the structure and the underlying assumptions of the philosophical system rather than a critical evaluation. I hope that together with the notes and the Index, it will provide those aids to the understanding which the originality of Leibniz's scientific, ethical, and metaphysical efforts deserve.

This collection exhibits and confirms the originality, range and the essential unity of his work.

Things is a collection of twelve essays by Stephen Yablo on identity, essence, causation, properties, ontology, and metaontology, with an emphasis on the metaontology of abstract objects. Almost all of Yablo's published work on these topics is collected here, along with the previously unpublished "Carving Content at the Joints."