In this paper, I provide what I believe to be Descartes's own solution to the problem of the Cartesian Circle. As I argue, Descartes thinks he can have certain knowledge of the premises of the Third Meditation proof of God's existence and veracity (i.e., the 3M-Proof) without presupposing God's existence. The key, as Broughton (1984) once argued, is that the premises of the 3M-Proof are knowable by the natural light. The major objection to this "natural light" gambit is that Descartes (...) identifies the natural light with the faculty of clear and distinct perception, a faculty that cannot be known to be reliable in advance of the 3M-Proof. I explain that Descartes distinguishes between three kinds of clear and distinction perceptions depending on their source; the senses, the imagination, or the intellect. I claim that although the First Meditation is designed to cast doubt on the clear and distinct perceptions of the senses and of the imagination, it is not designed to cast doubt on the clear and distinct perceptions of the intellect. The "natural light" gambit relies on the assumption that the natural light, by which propositions can be certainly known without presupposing knowledge of God's existence, is to be identified with the faculty of *intellectual* clear and distinct perception. (shrink)

In this essay, I discuss three readings of Descartes’ Meditations. According to the first reading, “I exist” is for Descartes the foundation of our knowledge. This reading is dismissed on the grounds that, in his view, as long as God’s existence is not proven there is a good reason to doubt this proposition. Proponents of the second reading claim that there are two kinds of Cartesian knowledge: perfect and imperfect knowledge. The meditator has imperfect knowledge of “I exist” before God’s (...) existence is proven. Subsequently, she acquires perfect knowledge of various metaphysical theorems. This reading is repudiated, too. I argue for a third reading, according to which “I think” – and not “I exist” – is the foundation of our knowledge. (shrink)

During the Italian Renaissance, artists and anatomists compared man to various mechanical devices, in an attempt to uncover knowledge about the structure and processes of the human body. In so doing, they drew on ancient Greek notions of instrumentality and proportion. During the early Scientific Revolution, the metaphor of Man the machine played a key role in the development of mechanistic philosophy. During the Enlightenment, it served views on materialism and atheism. By the nineteenth century, when the Industrial Revolution was (...) in full swing, a fundamental change in the relationship of man to machine had come about. Whereas, for Protagoras, man had been the measure of all things, now suddenly the machine was the standard by which the capacities and limits of man were judged. Man the machine was a key feature in the development of the totalitarian ideology of Communism. Moreover, for over a century now, the technocratic viewpoint has guided many technological innovations. Tracing a history of this metaphor, through Leonardo, Vesalius, Harvey, Descartes, Hobbes, Leibniz, La Mettrie, d'Holbach, Marx and Wells, places man's relationship with technology and his gradual loss of identity since the Renaissance in a new context. (shrink)

The topic of the dissertation is this: How well does contextualism, in general, fare as an epistemic theory? And the answer comes in three parts. The root of the skeptical problem. I argue that the source of the skeptical problem is neither the underdetermination principle nor the closure principle. Instead, I claim that it is a change in context that generates the problem in the first place. Though I make no explicit argument in favor of contextualism as a solution to (...) skeptical problems, the chapter amounts to a de facto defense of the contextualist solution to skeptical problems. The problem with Gettier. I consider criticisms of contextualism's capacity to resolve Gettier cases. As it stands, Lewis' contextualism can't resolve a wide range of Gettier cases. However, I offer a new rule, the Rule of Special Similarity, as a replacement rule for Lewis' Rule of Resemblance. I then show how the new rule, though not problem-free, can do a much better job of resolving the Gettier problem. Contextualism, then, needn't fail because it can't solve Gettier problems; it can. The ways of context. One goal is to get a clear map of the territory, one that underscores the fact that precisely how context is incorporated into the theory matters epistemically. Another is to make the point that contextualism—the claim that context plays an essential semantic role in knowledge ascriptions—is not just one particular view, but a family of similar views. Also, I offer a new kind of contextualism that avoids many of the substantial criticisms aimed at the others in the family. Though the primary aim of the dissertation is a defense in three parts of the contextualist approach I general, a view emerges from the dissertation. I call the view condexicalism, and the dissertation is, secondarily, a development and defense of that view. (shrink)

Descartes understood the subject matter of physics (or natural philosophy) to encompass the whole of nature, including living things. It therefore comprised not only nonvital phenomena, including those we would now denominate as physical, chemical, minerological, magnetic, and atmospheric; it also extended to the world of plants and animals, including the human animal (with the exception of those aspects of the human mind that Descartes assigned to solely to thinking substance: pure intellect and will). Descartes wrote extensively on physiology and (...) on the physiology and psychology of the senses. This chapter examines the notions of *physiology* and *psychology* in medical and natural philosophical works of Descartes' day; follows his efforts to bring physiology into his mechanistic idiom; considers the relation between physiology of the animal machine and psychological functions that yield functionally appropriate behavior; goes into his physiology and psychology of vision; and elaborates the tension in Descartes' works between his metaphysically supported micro-corpuscularism and his discussion of the animal machine as an organic unity comprising various functionally and teleologically characterized systems. The chapter draws on Descartes' works in both metaphysics and natural philosophy, including his Treatise on Man (originally published as L'Homme, 1664). (shrink)

Early in his career, Max Deutscher he started to explore questions in the philosophy of mind, which continue to interest him. His early reading of Jean-Paul Sartre, and the work of Gilbert Ryle, informs all his work. My paper traces the theme of genre in philosophy as it is exemplified and discussed throughout Deutscher’s work, including Judgment After Arendt (2007).