Full Idea
Of things said without any combination, each signifies either substance or quantity or qualification or a relative or where or when or being-in-a-position or having or doing or being-affected.
Gist of Idea
There are ten basic categories for thinking about things
Source
Aristotle (Categories [c.331 BCE], 01b25)
Book Reference
Aristotle: 'Categories and De Interpretatione', ed/tr. Ackrill,J.R. [OUP 1963], p.5
A Reaction
This sums up the earlier of Aristotle's two metaphysical view, and each of this categories is discussed in the present text.