"...in metaphysics, he held the view that ordinary objects (tables, chairs, etc.) are ‘logical fictions’, and that what exists “in the strict and philosophical sense” are parcels of matter. Parcels of matter cannot lose parts and continue to exist as the same things, according to Chisholm. But what we think of as ordinary objects are gaining and losing parts all the time, he noted. Some molecules that once composed the table in front of me no longer do so. They have been chipped off, and the table worn away with time. The same holds for human bodies. They gain and lose parts all the time, and thus for Chisholm, human bodies don’t persist through time “in the strict and philosophical sense.” But persons – whatever they are – do persist through changes in the matter that composes a body. Therefore, he concluded, persons are not identical with their bodies, nor with any part of the body that can undergo change."
Argument articulated by Roderick Chisholm
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