How is it that the mind perceives the words of a verse as a verse and not just as a string of words? One answer to this question is that to do so the mind itself must already be unified as a simple thing without parts (and perhaps must therefore be immortal). Kant called this argument the Achilles, perhaps because of its apparent invincibility, and perhaps also because it has a fatal weak spot, or perhaps because it is the champion argument of rationalism. The argument and the problem it addresses have a long history, from the ancient world right up to the present.'The Achilles of Rationalist Psychology' consists of newly written papers addressing each of the main contributors to the discussion of the Achilles.

In his Second Paralogism of the Critique of Pure Reason, Kant described what he called the "Achilles of all dialectical inferences in the pure doctrine of the soul." This argument, which he took to be powerful yet fatally flawed, purports to establish the simplicity of the human mind, or soul, on the basis of the unity of consciousness. It is the aim of this volume to treat the major figures who have advanced the Achilles argument, or who have held views bearing on it.

Nicolas Malebranche is now recognised as a major figure in the history of philosophy, occupying a crucial place in the Rationalist tradition of Descartes, Spinoza and Leibniz. The Search after Truth is his first, longest and most important work; this volume also presents the Elucidations which accompanied its third edition, the result of comments that Malebranche solicited on the original work and an important repository of his theories of ideas and causation. Together, the two texts constitute the complete expression of his mature thought, and are written in his subtle, argumentative and thoroughly readable style. They are presented in the distinguished translations by Thomas M. Lennon and Paul J. Olscamp, together with a historical introduction, a chronology of Malebranche's life, and useful notes on further reading.

Malebranche is now recognized as a major figure in the history of philosophy, occupying a crucial place in the Rationalist tradition of Descartes, Spinoza and Leibniz. The Search after Truth is his first, longest and most important work; this volume also presents the Elucidations that accompanied its third edition, the result of comments that Malebranche solicited on the original work and an important repository of his theories of ideas and causation. Together, the two texts constitute the complete expression of his mature thought, and are written in his subtle, argumentative and thoroughly readable style.

By the mid-1600s, the commonsense, manifest picture of the world associated with Aristotle had been undermined by skeptical arguments on the one hand and by the rise of the New Science on the other. What would be the scientific image to succeed the Aristotelian model? Thomas Lennon argues here that the contest between the supporters of Descartes and the supporters of Gassendi to decide this issue was the most important philosophical debate of the latter half of the seventeenth century. Descartes and Gassendi inspired their followers with radically opposed perspectives on space, the objects in it, and how these objects are known. Lennon maintains that differing concepts on these matters implied significant moral and political differences: the Descartes/Gassendi conflict was typical of Plato's perennial battle of the gods (friends of forms) and giants (materialists), and the crux of that enduring philosophical struggle is the exercise of moral and political authority.

Lennon demonstrates, in addition, that John Locke should be read as having taken up Gassendi's cause against Descartes. In Lennon's reinterpretation of the history of philosophy between the death dates of Gassendi and Malebranche, Locke's acknowledged opposition to Descartes on some issues is applied to the most important questions of Locke exegesis.

Originally published in 1993.

The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

By the mid-1600s, the commonsense, manifest picture of the world associated with Aristotle had been undermined by skeptical arguments on the one hand and by the rise of the New Science on the other. What would be the scientific image to succeed the Aristotelian model? Thomas Lennon argues here that the contest between the supporters of Descartes and the supporters of Gassendi to decide this issue was the most important philosophical debate of the latter half of the seventeenth century. Descartes and Gassendi inspired their followers with radically opposed perspectives on space, the objects in it, and how these objects are known. Lennon maintains that differing concepts on these matters implied significant moral and political differences: the Descartes/Gassendi conflict was typical of Plato's perennial battle of the gods (friends of forms) and giants (materialists), and the crux of that enduring philosophical struggle is the exercise of moral and political authority. Lennon demonstrates, in addition, that John Locke should be read as having taken up Gassendi's cause against Descartes. In Lennon's reinterpretation of the history of philosophy between the death dates of Gassendi and Malebranche, Locke's acknowledged opposition to Descartes on some issues is applied to the most important questions of Locke exegesis. Originally published in 1993. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Pierre Bayle (1647-1706) has been described by Richard Popkin as the key intellectual figure at the outset of the eighteenth century. Examinations of libraries from the period show him to have been by far the most successful author of the century, and his Historical and Critical Dictionary is in fact the philosophy best-seller of all time. The concepts, distinctions, and arguments found in his work were so widely adopted by later authors that Bayle came to be known as the 'Arsenal of the Enlightenment'. Despite his universally acknowledged importance, however, there has been from his own time to the present much disagreement about how Bayle is to be interpreted.

The title of this work is deliberately ambiguous, reflecting the multiple levels on which its argument is conducted. One aim is to indicate how a reading of Bayle might be made possible-how the initial impenetrability of his writings and their world might be overcome. On another level, the book offers an interpretation of Bayle's writings. Finally, it is a record of the author's own thoughts upon reading Bayle-what he finds himself thinking about as he looks at Bayle and his world.

This work is a critical but sympathetic treatment of this neglected thinker. It will engage anyone interested in the history of modern philosophy, the history of ideas, literary criticism, and the history of seventeenth-century French culture.