Divine Will and the Mechanical Philosophy: Gassendi and Descartes on Contingency and Necessity in the Created World

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Cambridge University Press, Jun 7, 2004 - Philosophy - 284 pages
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This book is about ways of understanding contingency and necessity in the world and how these ideas influenced the development of the mechanical philosophy in the seventeenth century. It examines the transformation of medieval ideas about Godts relationship to the Creation into seventeenth-century ideas about matter and method as embodied in early articulations of the mechanical philosophy. Medieval thinkers were primarily concerned with the theological problem of Godts relationship to the world He created. They discussed questions about necessity and contingency as related to divine power. By the seventeenth century, the focus had shifted to natural philosophy and the extent and certitude of human knowledge. Underlying theological assumptions continued to be reflected in the epistemological and metaphysical orientations incorporated into different versions of the mechanical philosophy. The differences between Pierre Gassendits (1592- 1655) and Rene Descartest (1596-1650) versions of the mechanical philosophy directly reflected the differences in their theological presuppositions. Gassendi described a world utterly contingent on divine will. This contingency expressed itself in his conviction that empirical methods are the only way to acquire knowledge about the natural world and that the matter of which all physical things are composed possesses some properties which can be known only empirically. Descartes, on the contrary, described a world in which God had embedded necessary relations, some of which enable us to have a priori knowledge of substantial parts of the natural world. The capacity for a priori knowledge extends to the nature of matter which, Descartes claimed to demonstrate, possesses only geometrical properties. Gassendits views can be traced back to the ideas of the fourteenth-century nominalists, while Descartest can be linked to the Thomist tradition he imbibed at la Fleche. Refracted through the prism of the mechanical philosophy, these theological conceptualizations of contingency and necessity in the world were mirrored in different styles of science that emerged in the second half of the seventeenth century.

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Part I Theology and the philosophy of nature
Part II The mechanical philosophy and the formation of scientific styles

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