OF THE DISTINCTION OF THINGS IN GENERAL (THREE ARTICLES)

After considering the production of creatures, we come to the consideration of the distinction of things. This consideration will be threefold---first, of the distinction of things in general; secondly, of the distinction of good and evil; thirdly, of the distinction of the spiritual and corporeal creature.

Under the first head, there are three points of inquiry:

(1) The multitude or distinction of things.

(2) Their inequality.

(3) The unity of the world.