I think, Aslan, you are confusing secondary substance with primary substance. That is, you are talking oranges and i am talking apples. You are concerned about universal substance; iām concerned about the individual substances. This Stanford University article explains it better than i can:]
Soc, I read the article twice, but found I needed to refer to the source. Grazing through Aristotleās Metaphysics Ch 5-8, I pulled out just a few bits to help with āsubstanceā, and at the bottom I give proposed changes to our definition:
The study of being is primarily the study of substance. I include this sentence because it justifies spending so much time on this particular definitionā¦
We call āsubstanceā
- all bodies, because they are not predicated of a subject but everything else is predicated of them
- that which, being present in such things as are not predicated of a subject, is the cause of their being, as the soul is of the being of an animal ā¦.
4) the essence, the formula of which is a definition, is also called the substance of each thing.
It follows then, that āsubstanceā has two senses, (A) the ultimate substratum, which is no longer predicated of anything else, and (B) ā¦the shape or form of each thing.
Substance is the cause or form which puts matter into a determinate state; it is that in a thing which is distinct from its material elements.
ā¦Substance is a principle and a causeā¦ā¦Therefore what we seek is the cause, i.e. the form, by reason of which the matter is some definite thing; this is the substance of the thing.
The substance is the indwelling form, from which and the matter, the so-called concrete substance is derived, for example, concavity is a form of this sort, for from this and the nose arise āsnub noseā and āsnubnessāā¦
The soul is the primary substance and the body is matter, and animal is the compound of both. I threw this in because it shows the emphasis on soul/essence/definition in the meaning of substance.
Given these exerpts, I propose the following modified definitions of Substance and Primary Substance:
Substance is being as in the āwhatnessā underlying/causing all things; it is the form/definition/essence/nature of things. Accidents inhere in it; it inheres in nothing.
A Primary Substance is an individual body.
And given this from the Categories Ch 5:
But in a secondary sense those things are called substances within which, as species, the primary substances are included; also those which, as genera, include the species. For instance, the individual man is included in the species āmanā, and the genus to which the species belongs is āanimal; these, thereforeāthat is to say, the species man and the genus animalāare termed secondary substances.
I would propose that:
Secondary Substances are species and genera.
Do these definitions help make more distinct some of the variables which have arisen as we talk about substance?