Daniel Garber

: Marin Mersenne was central to the new mathematical approach to nature in Paris in the 1630s and 1640s. Intellectually, he was one of the most enthusiastic practitioners of that program, and published a number of influential books in those important decades. But Mersenne started his career in a rather different way. In the early 1620s, Mersenne was known in Paris primarily as a writer on religious topics, and a staunch defender of Aristotle against attacks by those who would replace him by a new philosophy. In this essay, I would like to examine Mersenne's changing attitude toward Galileo. In the early 1620s, Mersenne lists Galileo among the innovators in natural philosophy whose views should be rejected. However, by the early 1630s, less than a decade later, Mersenne has become one of Galileo's most ardent supporters. How, then, did Mersenne learn to love Galileo?

Important to Kuhn's account of scientific change is the observation that when paradigms are in competition with one another, there is a curious breakdown of rational argument and communication between adherents of competing programs. He attributed this to the fact that competing paradigms are incommensurable. The incommensurability thesis centrally involves the claim that there is a deep conceptual gap between competing paradigms in science. In this paper I argue that in one important case of competing paradigms, the Aristotelian explanation of the properties of bodies in terms of matter and form as opposed to the Cartesian mechanist paradigm, where the properties of bodies are explained on the model of machines, there was no such conceptual gap: the notion of a machine was as fully intelligible on the Aristotelian paradigm as it was on the Cartesian. But this does not mean that the debate between the two sides was conducted on purely rational terms. Rational argument breaks down not because of Kuhnian incommensurability, I argue, but because of other cultural factors separating the two camps

Oxford University Press is proud to announce an annual volume presenting a selection of the best new work in the history of philosophy.Oxford Studies in Early Modern Philosophy will focus on the seventeenth and eighteenth centuries - the period that begins, very roughly, with Descartes and his contemporaries and ends with Kant. It will also publish papers on thinkers or movements outside of that framework, provided they are important in illuminating early modern thought. The core of the subject matter will, of course, be philosophy and its history. But the volume's papers will reflect the fact that philosophy in this period was much broader in scope that it is now taken to be, and included a great deal of what currently belongs to the natural sciences: so the notion of 'philosophy' will be interpreted rather broadly. Furthermore, philosophy in the period was closely connected with other disciplines, such as theology, and with larger questions of social, political, and religious history. Again, while maintaining a focus on philosophy, the volumes will also include articles that examine the larger intellectual, social, and political context of early modern philosophy.The articles in OSEMP will be of importance to specialists within the discipline, but the editors also intend that they should appeal to a larger audience of philosophers, intellectual historians, and others who are interested in the development of modern thought.

This paper explores Leibniz's conception of body and extension in the 1680s and 1690s. It is argued that one of Leibniz's central aims is to undermine the Cartesian conception of extended substance, and replace it with a conception on which what is basic to body is force. In this way, Leibniz intends to reduce extension to something metaphysically more basic in just the way that the mechanists reduce sensible qualities to size, shape and motion. It is also argued that this move is quite distinct from the reduction of body to monads and their appetitions and perceptions, so prominent in his later writings

The Cambridge History of 17th Century Philosophy offers a uniquely comprehensive and authoritative overview of early-modern philosophy written by an international team of specialists. As with previous Cambridge histories of philosophy the subject is treated by topic and theme, and since history does not come packaged in neat bundles, the subject is also treated with great temporal flexibility, incorporating frequent reference to medieval and Renaissance ideas. The basic structure of the volumes corresponds to the way an educated seventeenth - century European might have organized the domain of philosophy. Thus, the history of science, religious doctrine, and politics feature very prominently. The narrative that unfolds begins with an intellectual world dominated by a synthesis of Aristotelianism and scholastic philosophy, but by the end of the period the mechanistic or "corpuscularian" philosophy has emerged and exerted its full impact on traditional metaphysics, ethics, theology, logic, and epistemology

Oxford University Press is proud to announce an annual volume presenting a selection of the best new work in the history of philosophy. Oxford Studies in Early Modern Philosophy will focus on the seventeenth and eighteenth centuries - the extraordinary period of intellectual flourishing that begins, very roughly, with Descartes and his contemporaries and ends with Kant. It will also publish papers on thinkers or movements outside of that framework, provided they are important in illuminating early modern thought. The articles in OSEMP will be of importance to specialists within the discipline, but the editors also intend that they should appeal to a larger audience of philosophers, intellectual historians, and others who are interested in the development of modern thought.

In the Discours de la méthode, Descartes presents himself as a heroic figure, standing up against the current Aristotelian orthodoxy in philosophy, and offering something new, a mechanist physics and the metaphysics to go along with it. But Descartes was by no means the only challenger to Aristotelian natural philosophy: by Descartes’s day, there were many. Descartes was read as one of this group, generally called the novatores (innovators) in Latin, and often severely criticized for their advocacy of the new. Descartes himself wanted to separate his philosophy from that of the novatores, who were thought to seek novelty rather than truth. But it was not so easy to distance himself. Many contemporary commentators, like Charles Sorel, put Descartes squarely in their camp, but at exactly the moment when novelty and innovation in natural philosophy was changing from being worthy of scorn to being praiseworthy.

Oxford University Press is proud to present the second volume in a new annual series, presenting a selection of the best current work in the history of philosophy.Oxford Studies in Early Modern Philosophy focuses on the seventeenth and eighteenth centuries - the extraordinary period of intellectual flourishing that begins, very roughly, with Descartes and his contemporaries and ends with Kant. It will also publish papers on thinkers or movements outside of that framework, provided they are important in illuminating early modern thought.The articles in OSEMP will be of importance to specialists within the discipline, but the editors also intend that they should appeal to a larger audience of philosophers, intellectual historians, and others who are interested in the development of modern thought.

This paper discusses the Aristotelian notions of matter and form as they are treated in the philosophy of Leibniz. The discussion is divided into three parts, corresponding to three periods in Leibniz's development. In the earliest period, as exemplified in a 1669 letter to his former mentor Jakob Thomasius, Leibniz argues that matter and form can be given straightforward interpretations in terms of size and shape, basic categories in the new mechanical philosophy. In Leibniz's middle years, on the other hand, as exemplified in the Discourse on Metaphysics and the correspondence with Arnauld, Leibniz seems to hold a more orthodox Aristotelian view of matter and form as the constituents of the corporeal substances that ground the reality of the physical world. In Leibniz's latest years, as discussed in the letters with Des Bosses, matter and form enter once again in connection with the vinculum substantiale, the substantial bond that is supposed to bind monads together to form corporeal substances