The traditional treatment of Spinoza’s substance and modes is in a two-category ontology, which can be called ‘category dualism’ or ‘substance-property dualism’ that construes two ontological categories, one of which is the more ontologically fundamental substance, res, subject or object, and other more superficial ones that inhere in, are predicated of, or ontologically depend on the former, traditionally coined as accidents, modes, or more neutrally, properties. The idiosyncrasy of substance-p…
Read moreThe traditional treatment of Spinoza’s substance and modes is in a two-category ontology, which can be called ‘category dualism’ or ‘substance-property dualism’ that construes two ontological categories, one of which is the more ontologically fundamental substance, res, subject or object, and other more superficial ones that inhere in, are predicated of, or ontologically depend on the former, traditionally coined as accidents, modes, or more neutrally, properties. The idiosyncrasy of substance-property dualism is to deny a part-whole structure of the relation between its two categories. This seems to be in accordance with Spinoza’s endorsement of substance and modes as the two categories of his ontology, where substance is the fundamental entity and the modes are ontologically dependent on it, as well as the indivisibility of substance into parts. Nevertheless, other scholars have conceived a priority monistic structure of this relationship, which takes substance and modes in a whole-part relationship. In this paper, I argue against category dualism by developing three original objections in favour of a category monistic along with the priority monistic reading.