This essay explores the vexed issue of individual corporeal substance in Descartes' natural philosophy. Although Descartes' often referred to individual material objects as separate substances, the constraints on his definitions of matter and substance would seem to favor the opposite view; namely, that there exists only one corporeal substance, the plenum. In contrast to this standard interpretation, however, it will be demonstrated that Descartes' hypotheses make a fairly convincing case for the existence of individual material substances; and the key to (...) this new found individuation is a long neglected set of passages in the Principles of Philosophy. (shrink)

Descartes maintained substance dualism, the thesis that no substance has both mental and material properties. His main argument for this thesis, the so-called separability argument from the Sixth Meditation (AT VII: 78) has long puzzled readers. In this paper I argue that Descartes’ independence conception of substance (which Descartes presents in article 51 of the Principles) is crucial for the success of the separability argument and that Descartes used this conception of substance to defend his argument for substance dualism from (...) an important objection. (shrink)

" Il est à remarquer en tout ce que j'écris que je ne suis pas l'ordre des matières mais seulement celui des raisons, c'est-à-dire que je n'entreprends point de dire en un même lieu tout ce qui appartient à une matière, à cause qu'il me serait impossible de la bien prouver y ayant des raisons qui doivent être tirées de bien plus loin les unes que les autres, mais en raisonnant par ordre, a facilioribus ad difficiliora, j'en déduis ce que (...) je puis, tantôt pour une matière, tantôt pour une autre, ce qui est à mon avis le vrai chemin pour bien trouver et expliquer la vérité. " (Descartes à Mersenne, 24 décembre 1640). " Si l'ordre analytique est le seul à procurer la démonstration valable de la philosophie, si les Méditations qui se développent rigoureusement selon cet ordre, permettent seules de comprendre à coup sûr l'ensemble de la doctrine, il n'y a pas d'autre méthode pour comprendre les Méditations elles-mêmes que de mettre en évidence cet ordre par lequel seul elles démontrent leur vérité. " (Martial Gueroult). (shrink)

Cottingham aims to present Descartes' philosophy in a way that makes "the issues reasonably accessible to students who may be approaching the Cartesian system for the first time". He also aims to do "justice to the complexities of argument involved". There is a potential conflict here: making the issues accessible can lead one to oversimplify them; capturing the complexities of Descartes' thought can cause one to leave inexperienced readers behind. When the conflict arises, Cottingham routinely picks accessibility over philosophical complexity. (...) As a result, his book is not as philosophically sophisticated as other commentaries, such as E. M. Curley's, Margaret Wilson's and Bernard Williams's, but it is a superb introduction to Descartes' philosophy for the uninitiated. Cottingham places Descartes' philosophical ideas within the context of the intellectual climate of his time and shows the interrelations between major elements of Descartes' system, from his epistemology to his view of the physical universe to his physiological and psychological theories. The book's only drawback as an introduction is its limited bibliography. Many who read this book will be inspired to learn more; a more extensive, perhaps topically organized, bibliography would have helped them get started. (shrink)