This chapter contains section titled: Clear Perception and Seeing that Something is So Clear Perception and the Truth Rule Acknowledgments References and Further Reading.

The seventeenth century was a period of extraordinary invention, discovery and revolutions in scientific, social and political orders. It was a time of expansive automation, biological discovery, rapid advances in medical knowledge, of animal trials and a questioning of the boundaries between species, human and non-human, between social classes, and of the assumed naturalness of political inequality. This book gives a tour through those objects, ordinary and extraordinary, which captivated the philosophical imagination of the single most important French philosopher of (...) this period, Rene Descartes. Deborah J. Brown and Calvin G. Normore document Descartes' attempt to make sense of the complex, composite objects of human and divine invention, consistent with the fundamental tenets of his metaphysical system. Their central argument is that, far from reducing all the categories of ordinary experience to the two basic categories of substance, mind and body, Descartes' philosophy recognises irreducible composites that resist reduction, and require their own distinctive modes of explanation. (shrink)

This chapter discusses Decartes as a rationalist and an experimentalist, as a philosopher-metaphysicist who also relies on experiment and observation as an essential activity of knowledge. It explains deduction in terms of intuition, its connection between one proposition and another as the only way to knowledge and method, as some sets of rules, easy rules that should someone follow them, will lead to the truth. It further explains Descartes concept of the anaclastic which depends on the angle of incidence and (...) the angle of refraction. This chapter also explains Decartes thought that intuition and deduction are the immediate grasping of the propositions and inferential connection between propositions. Finally this chapter explains how certain experiments are needed to arrived at certain knowledge through deduction. (shrink)

Life and works -- Cartesian doubt -- Cogito ergo sum -- Sum res cogitans -- Ideas -- The idea of God -- The ontological argument -- Reason and intuition -- Matter and motion -- Mind and body.

This is the first book-length study of Descartes's metaphysics to place it in its immediate historical context, the Late Scholastic philosophy of thinkers such as Suárez against which Descartes reacted. Jorge Secada views Cartesian philosophy as an 'essentialist' reply to the 'existentialism' of the School, and his discussion includes careful analyses and original interpretations of such central Cartesian themes as the role of scepticism, intentionality and the doctrine of the material falsity of ideas, universals and the relation between sense and (...) understanding, causation and the proofs of the existence of God, the theory of substance, and the dualism of mind and matter. His study offers a picture of Descartes's metaphysics that is both novel and philosophically illuminating. (shrink)

Although the basis of modern biology is Cartesian, Descartes’s theories of biology have been more often ridiculed than studied. Yet, Dennis Des Chene demonstrates, the themes, arguments, and vocabulary of his mechanistic biology pervade the writings of many seventeenth-century authors. In his illuminating account of Cartesian physiology in its historical context, Des Chene focuses on the philosopher’s innovative reworking of that field, including the nature of life, the problem of generation, and the concepts of health and illness. Des Chene begins (...) by surveying works that Descartes would likely have encountered, from late Aristotelian theories of the soul to medical literature and treatises on machines. The Cartesian theory of vital operations is examined, with particular attention to the generation of animals. Des Chene also considers the role of the machine-model in furnishing a method in physiology, the ambiguities of the notion of machine, and of Descartes’s problem of simulation. Finally, he looks at,the various kinds of unity of the body, both in itself and in its union with the soul. Spirits and Clocks continues Des Chene’s highly regarded exploration -- begun in his previous book, Life’s Form -- of the scholastic and Cartesian sciences as well as the dialogue between these two worldviews. Introduction 1 Part One - Tales of the Bête-Machine [ 1 ] - Self-Movers 13 [ 2 ] - Where Do Machines Come From? 32 [ 3 ] - The Uses of Usus 53 Part Two - Machines, Mechanisms, Bodies, Organs [ 4 ] - Tools of Knowledge 71 [ 5 ] - Jeux D’Artifice 103 [ 6 ] - Unity of the Body 116 Conclusion 153 Bibliography 159 Index 177. (shrink)

A survey of Descartes' scientific career from his student days at the Jesuit College of La Flèche to his departure for Sweden in 1649.

In this first book-length examination of the Cartesian theory of visual perception, Celia Wolf-Devine explores the many philosophical implications of Descartes’ theory, concluding that he ultimately failed to provide a completely mechanistic theory of visual perception. Wolf-Devine traces the development of Descartes’ thought about visual perception against the backdrop of the transition from Aristotelianism to the new mechanistic science—the major scientific paradigm shift taking place in the seventeenth century. She considers the philosopher’s work in terms of its background in Aristotelian (...) and later scholastic thought rather than looking at it "backwards" through the later work of the British empiricists and Kant. Wolf-Devine begins with Descartes’ ideas about perception in the _Rules _and continues through the later scientific writings in which he develops his own mechanistic theory of light, color, and visual spatial perception. Throughout her discussion, she demonstrates both Descartes’ continuity with and break from the Aristotelian tradition. Wolf-Devine critically examines Cartesian theory by focusing on the problems that arise from his use of three different models to explain the behavior of light as well as on the ways in which modern science has not confirmed some of Descartes’ central hypotheses about vision. She shows that the changes Descartes made in the Aristotelian framework created a new set of problems in the philosophy of perception. While such successors to Descartes as Malebranche, Locke, Berkeley, and Hume accepted the core of his theory of vision, they struggled to clarify the ontological status of colors, to separate what is strictly speaking "given" to the sense of sight from what is the result of judgments by the mind, and to confront a "veil of perception" skepticism that would have been unthinkable within the Aristotelian framework. Wolf-Devine concludes that Descartes was not ultimately successful in providing a completely mechanistic theory of visual perception, and because of this, she suggests both that changes in the conceptual framework of Descartes are in order and that a partial return to some features of the Aristotelian tradition may be necessary. (shrink)

The late Gregor Sebba was fond of describing his monumental Bibliographia Cartesiana: A Critical Guide to the Descartes Literature, 1800–1960 as a by-product of his research begun in 1949 for an article he had in mind titled The Dream of Descartes. The bibliography has been indispensable to Descartes scholars since its appearance in 1964. When Sebba died in 1985, his manuscript for The Dream of Descartes was still unfinished. Here, with materials provided by Aníbal A. Bueño, Richard H. Popkin, and (...) Helen Sebba, Richard A. Watson presents the completed work based on a 1973 draft, letters, outlines, and other manuscript material. The result is a fascinating analysis of Descartes’ dreams as seminal in the creative process of genius. (shrink)

The problem of the Cartesian circle, as it is called, has sparked ongoing debate, which intersects several important themes of the Meditations. Discussions of the circle must address questions about the force and scope of the famous method of doubt introduced in Meditation I, and they must examine the intricate arguments for the existence of God and the avoidance of error in Meditations III to V. These discussions raise questions about the possibility of overturning skepticism, once a skeptical doubt has (...) been introduced. More generally, the problem of the circle resonates with recent questions about the foundations of knowledge: Must we be able to validate our methods of reasoning or of knowing before using them? If we must, wouldn't we be forever stuck at the beginning, unable to use our methods of reasoning or of knowing in their own validation? The problem of the Cartesian circle raises general questions about the validation of reason and the possibility of knowledge. This chapter examines the Cartesian circle in the context of Descartes' central project in the Meditations, to secure the foundations of metaphysics. In carrying out this project, Descartes felt the need, or adopted the strategy, of examining the possibility of human knowledge more generally. Such an examination can be interpreted in various ways. Depending on the interpretation given, the roles assigned to the method of doubt and the proofs about God may differ, thereby altering how we see the problem of the circle. We therefore need first to consider Descartes' metaphysical project along with the methods and strategies he adopted in carrying it out. Subsequently, I explain and evaluate several main approaches to the problem of the circle. The chapter concludes with some reflections on the relation of Descartes' metaphysics of knowledge to other prominent positions in the history of philosophy. (shrink)

Despite eschewing the utility of ends or purposes in natural philosophy, Descartes frequently engages in functional explanation, which many have assumed is an essentially teleological form of explanation. This article considers the consistency of Descartes's appeal to natural functions, advancing the idea that he is utilizing a non-normative, non-teleological form of functional explanation. It will be argued that Cartesian functional analysis resembles modern causal functional analysis, and yet, by emphasizing the interdependency of parts of biological systems, is able to avoid (...) many of the problems attendant upon modern causal theories. It is for this reason, if no other, that the study of Descartes's natural philosophy should be of interest to contemporary theorists of functional analysis. (shrink)

A major contribution to Descartes studies, this book provides a panorama of cutting-edge scholarship ranging widely over Descartes's own primary concerns: metaphysics, physics, and its applications. It is at once a tool for scholars and--steering clear of technical Cartesian science--an accessible resource that will delight nonspecialists. The contributors include Edwin Curley, Willis Doney, Alan Gabbey, Daniel Garber, Marjorie Grene, Gary Hatfield, Marleen Rozemond, John Schuster, Dennis Sepper, Stephen Voss, Stephen Wagner, Margaret Welson, Jean Marie Beyssade, Michelle Beyssade, Michel Henry, Evert (...) van Leeuwen, Jean-Luc Marion, Genevieve Rodis-Lewis, and Jean-Pierre Seris. Combining new textual sensitivity with attentiveness to history, they represent the best established scholars and most exciting new voices, including both English speaking and newly-translated writers. Part I examines the foundations of Descartes's philosophy: Cartesian certainty; the phenomenology of the cogito and its modulations in the passions; and the defensibility and comprehensibility of the Cartesian God. The second part examines Descartes's groundbreaking metaphysics: mind's distinctness from and interaction with body; imagination; perception; and language. Part III examines Cartesian science: the revolutionary rhetoric of the Rules and the Discourse; the metaphysical foundations of physics; the interplay of rationalism and empiricism; the mechanics and human biology that flow from Descartes's physics. (shrink)

Descartes occupies a position of piviotal importance as one of the founding fathers of modern philosophy; he is, perhaps the most widely studied of all philosophers. In this authoritative collection an international team of leading scholars in Cartesian studies present the full range of Descartes' extraordinary philosophical achievement. His life and the development of his thought, as well as the intellectual background to and reception of his work are treated at length. At the core of the volume are a group (...) of chapters on his metaphysics: the celebrated "Cogito" argument, the proofs of God's existence, the "Cartesian circle" and the dualistic theory of the mind and its relation to his theological and scientific views. Other chapters cover the philosophical implications of his work in algebra, his place in the 17th century scientific revolution, the structure of his physics, and his work on physiology and psychology. (shrink)

The 17th century author François Poulain de la Barre was an important contributor to a pivotal moment in the history of feminist thought. Poulain borrows from many of Descartes’s doctrines, including his dualism, distrust of epistemic authority, accounts of imagination, and passion, and at least some aspects of his doxastic voluntarism; here I examine how he uses a Cartesian notion of prejudice for an anti-essentializing philosophy of women’s education and the formation of the tastes, talents and interests of individuals. ‘Prejudice’ (...) remains Descartes’s notion of an entrenched, yet self-imposed doxastic commitment, but also takes on the sense of social-political group bias, founded on custom, transmitted through education, serving interests, and forming social expectations. Poulain also expands on the Cartesian notion and themes by emphasizing widespread, yet unjustified social opinions in favor of the status quo in both epistemic practices and epistemic authorities, while considering how biased beliefs about sexual difference and gender identity can be internalized even by those who suffer most from them. At the same time, he shows how powerful Cartesian concepts can be for feminist methodology, even though they might also be put to problematic uses (as Malebranche did). (shrink)

Descartes’ accounts of sensory perception have long troubled his interpreters, for their lack of clear and explicit statements on some fundamental issues. His readers have wondered whether he allows spatial sensory ideas (spatial qualia); whether sensory ideas such as color or pain are representations and, if so, what they represent; and what cognitive value Descartes attributed to sense perception. Recent discussions take differing stands on the questions just mentioned, and also disagree over Descartes’ account of the externalization of sensory qualities, (...) on the origin and correct analysis of the “material falsity” he attributes to some sensory ideas, and on the value of the “teachings of nature.” Such disagreement should not be surprising, for although sensory perception was an important topic for Descartes, his treatment of these particular issues is not systematic – or at least not apparently so. Generally, there are no proof texts that unequivocally settle questions about Descartes’ views on spatial qualia, the representationality of sensory ideas, their cognitive value, externalization, material falsity, and the status of the teachings of nature. Yet these questions and topics naturally arise from matters about which Descartes is explicit and (reasonably) consistent, regarding the role of the senses in philosophy and everyday life and concerning the nature of minds and ideas. It is, therefore, worthwhile to ask what his positions might have been. This chapter develops answers by considering Descartes’ systematic doctrines on the nature of the mind and its ideas and by combing his statements on sensation and perception for hints about how to apply such principles. The first section reviews some key texts. Succeeding sections develop positions on representationality, cognitive value, externalization, material falsity, and the teachings of nature. Ultimately, I favor an interpretation in which, for Descartes, all sensory ideas represent by resemblance, different kinds of sensory ideas vary in cognitive value, externalization arises through spatial localization, and, with sensory ideas of color and the like, as materially false they do not intrinsically misrepresent but afford occasion for false judgments, which arise as merely apparent, and so not actually legitimate, teachings of nature. (shrink)

A collection of more than 30 specially commissioned essays, this volume surveys the work of the 17th-century philosopher-scientist commonly regarded as the founder of modern philosophy, while integrating unique essays detailing the context and impact of his work. Covers the full range of historical and philosophical perspectives on the work of Descartes Discusses his seminal contributions to our understanding of skepticism, mind-body dualism, self-knowledge, innate ideas, substance, causality, God, and the nature of animals Explores the philosophical significance of his contributions (...) to mathematics and science Concludes with a section on the impact of Descartes's work on subsequent philosophers. (shrink)

Descartes is well known as a mathematician and natural philosopher. However, none of Descartes's biographers has described the invitation he received in 1633 to fill a chair in theoretical medicine at the University of Bologna, or the fact that he was already sufficiently known and respected for his medical knowledge that the invitation came four years before his first publication. In this note I authenticate and contextualize this event, which I refer to as the ‘Bologna affair’. I transcribe the letter (...) written to the Bolognese Senate announcing efforts to bring Descartes to the university and explain the events that led to Descartes receiving the invitation. While many questions about the Bologna affair cannot be answered because of the paucity of the historical record, I conclude that the event invites us to consider again the larger historiographical issue of how best to integrate the history of medicine with the history of science and philosophy during the early modern period. (shrink)

Contributors are Susan Bordo, Stanley Clarke, Erica Harth, Leslie Heywood, Luce Irigaray, Genevieve Lloyd, Mario Moussa, Eileen O'Neill, Adrianna Paliyenko, Ruth Perry, Mario Sáenz, Karl Stern, Thomas Wartenberg, and James Winders.

In _Reconstructing the Cognitive World_, Michael Wheeler argues that we should turn away from the generically Cartesian philosophical foundations of much contemporary cognitive science research and proposes instead a Heideggerian approach. Wheeler begins with an interpretation of Descartes. He defines Cartesian psychology as a conceptual framework of explanatory principles and shows how each of these principles is part of the deep assumptions of orthodox cognitive science. Wheeler then turns to Heidegger's radically non-Cartesian account of everyday cognition, which, he argues, can (...) be used to articulate the philosophical foundations of a genuinely non-Cartesian cognitive science. Finding that Heidegger's critique of Cartesian thinking falls short, even when supported by Hubert Dreyfus's influential critique of orthodox artificial intelligence, Wheeler suggests a new Heideggerian approach. He points to recent research in "embodied-embedded" cognitive science and proposes a Heideggerian framework to identify, amplify, and clarify the underlying philosophical foundations of this new work. He focuses much of his investigation on recent work in artificial intelligence-oriented robotics, discussing, among other topics, the nature and status of representational explanation, and whether cognition is computation rather than a noncomputational phenomenon best described in the language of dynamical systems theory. Wheeler's argument draws on analytic philosophy, continental philosophy, and empirical work to "reconstruct" the philosophical foundations of cognitive science in a time of a fundamental shift away from a generically Cartesian approach. His analysis demonstrates that Heideggerian continental philosophy and naturalistic cognitive science need not be mutually exclusive and shows further that a Heideggerian framework can act as the "conceptual glue" for new work in cognitive science. (shrink)

Mihnea Dobre, Tammy Nyden. to not only notice the “anomalies,” but able to develop more useful narratives that can fully incorporate them. This work is a first step towards that end. We do not put forward an alternative narrative ourselves, but ...

Stephen Gaukroger traces the development of Descartes's thought in the social, religious, and intellectual context of seventeenth‐century Europe. Gaukroger describes Descartes's upbringing and his education at the Jesuit La Flèche collège, and shows the role these played in the development of his ground‐breaking work in philosophy and science. The book details the effects of his relationships with others on his work, both through collaboration and through conflict. It discusses the history of the composition of his major works and details their (...) structure and content. It documents the correspondence, which played a major part in the development of his thinking, both before and after publication. The book concludes, as it begins, with his correspondence with Princess Elizabeth of Bohemia on the subject of the passions. (shrink)

This essay argues that Malebranche originated the model of sensitive taste in French thought, several decades before Du Bos. It examines the highly gendered, negative physiological model of taste and of the female mind which Malebranche developed within the Cartesian framework and as a witness to Parisian salon society in which women’s taste had great cultural influence, and strongly questions the common assumption that Cartesian substance dualism necessarily contained feminist potential. The essay argues for Malebranche’s great influence in this regard, (...) connecting him to later Enlightenment critics of women’s taste such as Rousseau, and to Vitalist physicians like Le Camus. -/- All rights reserved. Except for brief quotations used for purposes of scholarly citation, none of this work may be reproduced in any form by any means without written permission from the publisher. For information address the University of Pennsylvania Press, 3905 Spruce Street, Philadelphia, Pennsylvania 19104-4112. (shrink)

This collection of fourteen essays, all published here for the first time, offers a stimulating reassessment of the central theme of Descartes's metaphysics. The first section examines Descartes's place in the history of philosophy and his unique influence in shaping the nature of philosophical enquiry. The central sections of the book cover the Cartesian doctrine of substance, the place of God in Descartes's philosophy, and his views on the relationship between reason and will. A concluding section examines the problematice role (...) of sensory awaremess om Descartes's account of our knowledge of ourselves and the world around us, and the implication of that account for an understanding of our nature as human beings. The volume is edited by John Cottingham, a leading authority on Descartes, whose introduction provides a clear overview of the issues addressed. The distinguished international team of contributors includes some of the best-known names in Descartes scholarship. (shrink)

Descartes is often thought to bifurcate sensory experience into two distinct cognitive components: the sensing of secondary qualities and the more or less intellectual perceiving of primary qualities. A closer examination of his analysis of sensory perception in the Sixth Replies and his treatment of sensory processing in the Dioptrics and Treatise on Man teIls a different story. I argue that Descartes offers a unified cognitive account of sensory experience according to which the senses and intellect operate together to produce (...) a fundamentally imagistic representation of the world in both its primary and secondary quality aspects. At stake here is not only our understanding of the cognitive structure of sensory experience but the relation of sense and intellect more generally in the Cartesian mind. The deep bifurcation in the Cartesian mind is not between the sensory perception of primary and secondary qualities but between sensory perception and purely intellectual perception. (shrink)

Descartes is often accused of having fragmented the human being into two independent substances, mind and body, with no clear strategy for explaining the apparent unity of human experience. Deborah Brown argues that, contrary to this view, Descartes did in fact have a conception of a single, integrated human being, and that in his view this conception is crucial to the success of human beings as rational and moral agents and as practitioners of science. The passions are pivotal in this, (...) and in a rich and wide-ranging discussion she examines Descartes' place in the tradition of thought about the passions, the metaphysics of actions and passions, sensory representation, and Descartes' account of self-mastery and virtue. Her study is an important and original reading not only of Descartes' account of mind-body unity but also of his theory of mind. (shrink)

Theo Verbeek provides the first book-length examination of the initial reception of Descartes’s written works. Drawing on his research of primary materials written in Dutch and Latin and found in libraries all over Europe, even including the Soviet Union, Theo Verbeek opens a period of Descartes’s life and of the development of Cartesian philosophy that has been virtually closed since Descartes’s death. Verbeek’s aim is to provide as complete a picture as possible of the discussions that accompanied the introduction of (...) Descartes’s philosophy into Dutch universities, especially those in Utrecht and Leiden, and to analyze some of the major problems that philosophy raised in the eyes of Aristotelian philosophers and orthodox theologians. The period covered extends from 1637, the year in which Descartes published his _Discours de la Méthode, _until his death in 1650. Verbeek demonstrates how Cartesian philosophy moved successfully into the schools and universities of Holland and how this resulted in a real evolution of Descartes’s thought beyond the somewhat dogmatic position of Descartes himself. Verbeek further argues that this progression was an essential step in the universal propagation of Cartesian philosophy throughout Europe during the second half of the seventeenth century. As he details the disputes between Cartesians and anti-Cartesians in Holland, Verbeek shows how the questions raised were related on the one hand to religious conflicts between the Remonstrants and the Orthodox Calvinists and on the other hand to political conflicts between more liberal factions fighting for the union of church and state to enhance religious control of society in general. Contending that Descartes and Cartesian philosophy were central to the development of the modern Dutch state, Verbeek illuminates the role they played in Dutch political, religious, and intellectual life. (shrink)

Descartes and the last Scholastics: objections and replies -- Descartes and the Scotists -- Ideas, before and after Descartes -- The Cartesian destiny of form and matter -- Descartes, Basso, and Toletus: three kinds of Corpuscularians -- Scholastics and the new astronomy on the substance of the heavens -- Descartes and the Jesuits of La Fleche: the Eucharist -- Condemnations of Cartesianism: the extension and unity of the universe -- Cartesians, Gassendists, and censorship -- The cogito in the seventeenth century.

Physiologia provides an accessible and comprehensive guide to late Aristotelian natural philosophy; with that context in hand, it offers new interpretations of major themes in Descartes’s natural philosophy.

This chapter contains section titled: Status of Animals Origins of Animals Life, Health, and Function Sense and Cognition Are Descartes's Animals Unfeeling Machines? Descartes's Legacy References and Further Reading.

This collection of original essays deals with Cartesian themes and problems, especially as these arise in connection with Cartesian natural science and the theory of perception, agency, mentality, divinity, and the passions. It focuses in particular on Desmond Clarke's important contributions to these aspects of Descartes's writings.

Descartes has often been called the 'father of modern philosophy'. His attempts to find foundations for knowledge, and to reconcile the existence of the soul with the emerging science of his time, are among the most influential and widely studied in the history of philosophy. This is a classic and challenging introduction to Descartes by one of the most distinguished modern philosophers. Bernard Williams not only analyzes Descartes' project of founding knowledge on certainty, but uncovers the philosophical motives for his (...) search. With acute insight, he demonstrates how Descartes' _Meditations _are not merely a description but the very enactment of philosophical thought and discovery. Williams covers all of the key areas of Descartes' thought, including God, the will, the possibility of knowledge, and the mind and its place in nature. He also makes profound contributions to the theory of knowledge, metaphysics and philosophy generally. With a new foreword by John Cottingham. (shrink)

Between Two Worlds is an authoritative commentary on--and powerful reinterpretation of--the founding work of modern philosophy, Descartes's Meditations. Philosophers have tended to read Descartes's seminal work in an occasional way, examining its treatment of individual topics while ignoring other parts of the text. In contrast, John Carriero provides a sustained, systematic reading of the whole text, giving a detailed account of the positions against which Descartes was reacting, and revealing anew the unity, meaning, and originality of the Meditations. Carriero finds (...) in the Meditations a nearly continuous argument against Thomistic Aristotelian ways of thinking about cognition, and shows more clearly than ever before how Descartes bridged the old world of scholasticism and the new one of mechanistic naturalism. Rather than casting Descartes's project primarily in terms of skepticism, knowledge, and certainty, Carriero focuses on fundamental disagreements between Descartes and the scholastics over the nature of understanding, the relation between the senses and the intellect, the nature of the human being, and how and to what extent God is cognized by human beings. Against this background, Carriero shows, Descartes developed his own conceptions of mind, body, and the relation between them, creating a coherent, philosophically rich project in the Meditations and setting the agenda for a century of rationalist metaphysics. (shrink)

The Cambridge Descartes Lexicon is the definitive reference source on René Descartes, 'the father of modern philosophy' and arguably among the most important philosophers of all time. Examining the full range of Descartes' achievements and legacy, it includes 256 in-depth entries that explain key concepts relating to his thought. Cumulatively they uncover interpretative disputes, trace his influences, and explain how his work was received by critics and developed by followers. There are entries on topics such as certainty, cogito ergo sum, (...) doubt, dualism, free will, God, geometry, happiness, human being, knowledge, Meditations on First Philosophy, mind, passion, physics, and virtue, which are written by the largest and most distinguished team of Cartesian scholars ever assembled for a collaborative research project - 91 contributors from 12 countries. (shrink)

René Descartes is best remembered today for writing 'I think, therefore I am', but his main contribution to the history of ideas was his effort to construct a philosophy that would be sympathetic to the new sciences that emerged in the seventeenth century. To a great extent he was the midwife to the Scientific Revolution and a significant contributor to its key concepts. In four major publications, he fashioned a philosophical system that accommodated the needs of these new sciences and (...) thereby earned the unrelenting hostility of both Catholic and Calvinist theologians, who relied on the scholastic philosophy that Descartes hoped to replace. His contemporaries claimed that his proofs of God's existence in the Meditations were so unsuccessful that he must have been a cryptic atheist and that his discussion of skepticism served merely to fan the flames of libertinism. This is the first biography in English that addresses the full range of Descartes' interest in theology, philosophy and the sciences and that traces his intellectual development through his entire career. (shrink)