12759
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There are atoms of substance, but no atoms of bulk or extension [Leibniz]
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Full Idea:
Although there are atoms of substance, namely monads, which lack parts, there are no atoms of bulk [moles], that is, atoms of the least possible extension, nor are there any ultimate elements, since a continuum cannot be composed out of points.
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From:
Gottfried Leibniz (On Nature Itself (De Ipsa Natura) [1698], §11)
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A reaction:
Leibniz has a constant battle for the rest of his career to explain what these 'atoms of substance' are, since they have location but no extension, they are self-sufficient yet generate force, and are non-physical but interact with matter.
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12718
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Secondary matter is active and complete; primary matter is passive and incomplete [Leibniz]
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Full Idea:
I understand matter as either secondary or primary. Secondary matter is, indeed, a complete substance, but it is not merely passive; primary matter is merely passive, but it is not a complete substance. So we must add a soul or form...
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From:
Gottfried Leibniz (On Nature Itself (De Ipsa Natura) [1698], §12), quoted by Daniel Garber - Leibniz:Body,Substance,Monad 4
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A reaction:
It sounds as if primary matter is redundant, but Garber suggests that secondary matter is just the combination of primary matter with form.
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