1. Matter underlies and persists through substantial changes. A substance is generated (destroyed) by having matter take on (lose) form.
1. A house is created when bricks, boards, etc., are put together according to a certain plan and arranged in a certain form. It is destroyed when the bricks, boards, etc., lose that form.
2. An animal is generated when matter (contributed by the mother) combines with form (contributed by the father).
2. This suggests that the primary substances of the Categories, the individual plants and animals, are, when analyzed, actually compounds of form and m…