is simply matter, that rocks are just made of little bits of rock, or that water is made up of tiny H20 molecules and nothing else. He has several arguments to support this view, but it seems that his strongest relies on his understandings of the unity of substance and the divisibility of matter.
             Leibniz believes that there is an inherent unity in the composition of a watch, a human being, an army, and indeed in everything that we perceive, despite the fact that each of these things can be broken down into smaller parts. "In real things, namely in bodies, the parts are not indefinite, but are assigned in a certain way, in accordance with how nature has actually instituted divisions and subdivisions; and although these divisions might proceed to infinity, nonetheless, everything results from certain first constituents, that is, real unities, although infinite in number...." He believes that bodies are composed according to a natural hierarchy of organized unities. In one of his letters to Arnaud, he claims, "Every machine also presupposes some substance in the pieces of which it is made, and there is no plurality without true unities, (86)." Leibniz suggests that in order for there to be unity in the whole, there must be unity inh
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