About the talk:
In the course of considering the simple modes of space in Book II of the Essay, Locke notes that “there are some that would persuade us, that Body and Extension are the same thing” (2.13.11). Those would be the Cartesians, of course, though Locke, as is typical of him, does not name the sect. Descartes held that extension is the principle attribute or essence of body (corporeal substance) and that in some sense body is nothing more than mere extension, for body is just extension and its modifications. Notoriously, this provides Descartes with a very short argument for the impossibility of a vacuum. Locke is suspicious of both the conclusion and the shortness of the argument. Downing's focus here, however, on his attempts to prove in 2.13.11-14 that our ideas of body and of extension/space are distinct. Her goal is both to evaluate this anti-Cartesian foray, and to use it to reflect on some intriguing and abstruse elements of Descartes’ ontology of body. Downing argues that Locke’s arguments emerge as well targeted, once we see them as aimed against Descartes’ stance in his fascinating correspondence with Henry More.


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