Review of Aristotle’s Categories

Categories is the intro text to Aristotle’s Metaphysics, or so some essay from Plato.Stanford.Edu said.  Good enough for me.  It is short and clear.  

Some things are predicable of a subject but never in a subject.  By “being present in a subject” Aristotle means “incapable of existence apart from a subject” (2, 1a).

Substance is that which is neither predicable of a subject nor present in a subject.  

  • Primary: The individual man or horse.
  • Secondary: the species man; the genus animal.

Key point: everything except primary substances is either predicable of a primary substance or present in a primary substance.  The proposition “the man is an animal” is necessarily true, but not the reverse.  Further, the species is to the genus as subject is to predicate.

A primary substance has no contrary, for what can be the contrary to an individual man? Yet, while remaining numerically one it can admit contrary qualities.

About J. B. Aitken

Interests include patristics, the role of the soul in the human person, analytic theology, Reformed Scholasticism, Medievalism, Substance Metaphysics
This entry was posted in Book Review, Philosophy and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s