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)

This first extensive study of Spinoza's philosophy of mind concentrates on two problems crucial to the philosopher's thoughts on the matter: the requirements for having a thought about a particular object, and the problem of the mind's relation to the body. Della Rocca contends that Spinoza's positions are systematically connected with each other and with a principle at the heart of his metaphysical system: his denial of causal or explanatory relations between the mental and the physical. In this way, Della (...) Rocca's exploration of these two problems provides a new and illuminating perspective on Spinoza's philosophy as a system. (shrink)

There can be little disagreement about whether ideas of sense perception are, for Spinoza, to be classed as passions or actions—the former is obviously the correct answer. All this, however, does not mean that sense perception would be, for Spinoza, completely passive. In this essay I argue argues that there is in the Ethics an elaborate—and to my knowledge previously unacknowledged—line of reasoning according to which sense perception of finite things never fails to contain a definite active component. This argument (...) for activity in sense perception consists of two main parts: first, that ideas we form through sense perception have something adequate in them; second, that the adequate component is actively brought about. Discerning this line of thought connects to—and sheds some new light on—Spinoza’s general way of understanding ideas as entities involving activity. (shrink)

Benedict de Spinoza is one of the most controversial and enigmatic thinkers in the history of philosophy. His greatest work, Ethics (1677), developed a comprehensive philosophical system and argued that God and Nature are identical. His scandalous Theological-Political Treatise (1670) provoked outrage during his lifetime due to its biblical criticism, anticlericalism, and defense of the freedom to philosophize. Together, these works earned Spinoza a reputation as a singularly radical thinker. -/- In this book, Steinberg and Viljanen offer a concise and (...) up-to-date account of Spinoza’s thought and its philosophical legacy. They explore the full range of Spinoza’s ideas, from politics and theology to ontology and epistemology. Drawing broadly on Spinoza’s impressive oeuvre, they have crafted a lucid introduction for readers unfamiliar with this important philosopher, as well as a nuanced and enlightening study for more experienced readers. (shrink)

Spinoza’s claims about true ideas are central to the Treatise on the Emendation of the Intellect. It is therefore worth trying to reconstruct what he means when he says that an idea is true. I argue that the three leading interpretations – correspondence, coherence, and causal – don’t explain key passages. I then propose a new interpretation. Roughly, I propose that an idea is true if and only if it represents an essence and was derived in the right kind of (...) way by the intellect from an innate idea of one’s own essence. In the final section I sketch why I believe this interpretation extends to his claims about truth and adequacy in the Ethics. (shrink)

"With an astonishing erudition... and in a direct no-nonsense style, Bennett expounds, compares, and criticizes Spinoza’s theses.... No one can fail to profit from it. Bennett has succeeded in making Spinoza a philosopher of our time." --W. N. A. Klever, _Studia Spinoza_.

Richard Popkin’s meticulous translation--the most complete since the eighteenth century--contains selections from thirty-nine articles, as well as from Bayle’s four Clarifications. The bulk of the major articles of philosophical and theological interest--those that influenced Leibniz, Berkeley, Hume, and Voltaire and formed the basis for so many eighteenth-century discussions--are present, including David, Manicheans, Paulicians, Pyrrho, Rorarius, Simonides, Spinoza, and Zeno of Elea.

The seventeenth century saw dramatic advances in mathematical theory and practice. With the recovery of many of the classical Greek mathematical texts, new techniques were introduced, and within 100 years, the rules of analytic geometry, geometry of indivisibles, arithmatic of infinites, and calculus were developed. Although many technical studies have been devoted to these innovations, Mancosu provides the first comprehensive account of the relationship between mathematical advances of the seventeenth century and the philosophy of mathematics of the period. Starting with (...) the Renaissance debates on the certainty of mathematics, Mancosu leads the reader through the foundational issues raised by the emergence of these new mathematical techniques, including the influence of the Aristotelian conception of science in Cavalieri and Guldin, the foundational relevance of Descartes' Geometrie, the relation between geometrical and epistemological theories of the infinite, and the Leibnizian calculus and the opposition to infinitesimalist procedures. In the process Mancosu draws a sophisticated picture of the subtle dependencies between technical development and philosophical reflection in seventeenth century mathematics. (shrink)

In the _Fifth Meditation, Descartes introduces a being for which his system appears to leave no room. He clearly and distinctly perceives geometrical properties and concludes that, even though they may not actually exist, their _true and immutable natures exist nonetheless. Here I argue that the wedge that Descartes drives between an object and its true and immutable nature is only temporary and that, in the final analysis, a true and immutable nature of any X is just X itself. Given (...) the analytic method of the _Meditations, it is to be expected that the 'meditator' would not notice any of this in the _Fifth Meditation. He must wait until his epistemic position is more enhanced. (shrink)

This essay traces the rather consistent essentialist thread that runs through the whole Short Treatise. This allows us not only to better understand the work itself but also to obtain a firmer grasp of the nature of Spinoza’s entire philosophical enterprise. In many ways, the essentialism we find in the Short Treatise is in line with Spinoza’s mature thought; but there are also significant differences, and discerning them throws light on the development of Spinoza’s philosophy.

Spinoza never discusses the scenario of radical skepticism as it was introduced by Descartes. Why not? This paper argues that he chooses a preventive strategy: instead of taking the skeptical challenge as it is and trying to refute it, he questions the challenge itself and gives a diagnosis of its origin. It is a combination of semantic atomism, dualism and anti-naturalism that gives rise to radical doubts. Spinoza attacks these basic assumptions, opting instead for semantic holism, anti-dualism and naturalism. This (...) crucial shift of basic assumptions prevents radical skepticism from arising. To be sure, local doubts are still possible, but the possibility of global doubt is ruled out. The paper examines this preventive strategy, situating it in the historical context and building a bridge to more recent anti-skeptical strategies. (shrink)

This paper aims at reconstructing the ethical issues raised by Spinoza's earlyTreatise on the Emendation of the Intellect. Specifically, I argue that Spinoza takes issue with Descartes’ epistemology in order to support a form of “ethical intellectualism” in which knowledge is envisaged as both necessary and sufficient to reach the supreme good. First, I reconstruct how Descartes exploits the distinction between truth and certainty in hisDiscourse on the Method. On the one hand, this distinction acts as the basis for Descartes’ (...) epistemological rules while, on the other hand, it implies a “morale par provision” in which adequate knowledge is not strictly necessary to practice virtue. Second, I show that Spinoza rejects the distinction between truth and certainty and thus the methodological doubt. This move leads Spinoza to substitute the Cartesian Cogito with the idea of God as the only adequate standard of knowledge, through which the mind can attain the rules to reach the supreme good. Third, I demonstrate that in theShort TreatiseSpinoza develops this view by equating intellect and will and thus maintaining that only adequate knowledge can help to contrast affects. However, I also insist that Spinoza's early epistemology is unable to explain why human beings drop conceive of the idea of God inadequately. Thus, I suggest that in his later writings Spinoza accounts for the insufficiency of adequate knowledge in opposing the power of the imagination and passions by reconnecting the nature of ideas with the mind's conatus. (shrink)

Spinoza's response to a certain radical form of scepticism has deep and surprising roots in his rationalist metaphysics. I argue that Spinoza's commitment to the Principle of Sufficient Reason leads to his naturalistic rejection of certain sharp, inexplicable bifurcations in reality such as the bifurcations that a Cartesian system posits between mind and body and between will and intellect. I show how Spinoza identies and rejects a similar bifurcation between the representational character of ideas or mental states and the epistemic (...) status of these ideas, a bifurcation to which Spinoza sees the radical sceptic committed. Spinoza's rejection of this bifurcation helps to explain some of his most cryptic statements concerning scepticism and also reveals a promising and highly metaphysical strategy for understanding and responding to scepticism. (shrink)

in his second letter to spinoza, William van Blyenbergh expresses his dissatisfaction with Spinoza’s approach to philosophical inquiry. He writes,Before I proceed to ask you to resolve certain other difficulties, you should know that I have two general rules according to which I always try to philosophize: the clear and distinct conception of my intellect and the revealed word, or will, of God.1Spinoza does not share Blyenbergh’s concern that the intellect may lead us astray from the divine truth. He responds,But (...) as for myself, I confess clearly and without circumlocution, that I do not understand Sacred Scripture, though I have spent several years on it. And I am well aware that, when I have found a solid... (shrink)

Spinoza's response to a certain radical form of scepticism has deep and surprising roots in his rationalist metaphysics. I argue that Spinoza's commitment to the Principle of Sufficient Reason leads to his naturalistic rejection of certain sharp, inexplicable bifurcations in reality such as the bifurcations that a Cartesian system posits between mind and body and between will and intellect. I show how Spinoza identies and rejects a similar bifurcation between the representational character of ideas or mental states and the epistemic (...) status of these ideas, a bifurcation to which Spinoza sees the radical sceptic committed. Spinoza's rejection of this bifurcation helps to explain some of his most cryptic statements concerning scepticism and also reveals a promising and highly metaphysical strategy for understanding and responding to scepticism. (shrink)

In the Ethics, Spinoza is not expressly concerned with skepticism and the possibility envisaged by Descartes that clear and distinct ideas or conceptions may not be true. There is reason for this, as he was of the opinion that, if as in the Ethics we proceed in our thinking in the right order, doubt will not arise. In his earlier works, however, he is concerned with skepticism and, in particular, with the questioning of clear and distinct ideas. In the Prolegomenon (...) in Part One of Descartes’ Principles, he sets forth what he takes to be Descartes’ attempt to allay doubts about clear and distinct perceptions. He finds there that Descartes does not succeed in answering an objection to his procedure, and he proposes an alternative way of escape from doubt. This alternative is also stated in the Improvement of the Understanding in the section on doubt or idea dubia ; and considerable light is cast upon it by his discussion in this section of the nature of doubt. Distinguishing genuine doubt and merely verbal doubt, i.e. professions of doubt when “the soul does not doubt,” he explains what leads to genuine doubt and how such doubt is to be removed. In my paper, I shall explicate the view stated in these passages and raise questions about the relations of this view to other views of Spinoza’s. I shall also be concerned with a short and cryptic passage earlier in the Improvement of the Understanding in which he deals with professions of doubt that, farther on, he deems merely verbal. In a final section, I shall assemble the views about skeptical doubt stated in the various places and give a summary statement of Spinoza’s attitude toward philosophical skepticism. (shrink)

Legendary since his own time as a universal genius, Gottfried Wilhelm Leibniz (1646-1716) contributed significantly to almost every branch of learning. One of the creators of modern mathematics, and probably the most sophisticated logician between the Middle Ages and Frege, as well as a pioneer of ecumenical theology, he also wrote extensively on such diverse subjects as history, geology, and physics. But the part of his work that is most studied today is probably his writings in metaphysics, which have been (...) the focus of particularly lively philosophical discussion in the last twenty years or so. The writings contain one of the great classic systems of modern philosophy, but the system must be pieced together from a vast and miscellaneous array of manuscripts, letters, articles, and books, in a way that makes especially strenuous demands on scholarship. This book presents an in-depth interpretation of three important parts of Leibniz's metaphysics, thoroughly grounded in the texts as well as in philosophical analysis and critique. The three areas discussed are the metaphysical part of Leibniz's philosophy of logic, his essentially theological treatment of the central issues of ontology, and his theory of substance (the famous theory of monads). (shrink)

Baruch Spinoza (1632-1677) was one of the most important philosophers of all time; he was also one of the most radical and controversial. The story of Spinoza's life takes the reader into the heart of Jewish Amsterdam in the seventeenth century and, with Spinoza's exile from Judaism, into the midst of the tumultuous political, social, intellectual, and religious world of the young Dutch Republic. This new edition of Steven Nadler's biography, winner of the Koret Jewish Book Award for biography and (...) translated into a dozen languages, is enhanced by exciting new archival discoveries about his family background, his youth, and the various philosophical, political, and religious contexts of his life and works. There is more detail about his family's business and communal activities, about his relationships with friends and correspondents, and about the development of his writings, which were so scandalous to his contemporaries. (shrink)

Professor Parkinson's book on Spinoza's theory of knowledge makes a serious attempt to consider this theme in isolation. The author argues that an understanding of this particular theory is a prerequisite to any understanding of Spinoza's theory of ethics or his metaphysical views. The text also discusses Spinoza's interests, especially the influence of science on the development of his thought, and ultimately provides a critical account of the philosopher's methodology, theory of truth, and theory of differing kinds of knowledge.