Material v Immaterial Substance * Aristotle is reductionist, what Aristotle is tring to do is looking forward to us and say wel look I really my self odont know what the universe works. But whatever the universe works it will always be reduced to matter and form. * There is a lot of forms * Some substance can change while retaining tier identity (MATERIAL) * They contain matter and form (all sensible substances) * Some substances cannot change (IMMATERIAL) * They do not contain matter (celestial objects, God the unmoved mover) * Since they do not contain matter, they are “sui generis” (one per kind/species/category)
Identity and Essence * Substances with matter can change, substances without matter cannot change. Example of Atistotle: Socrates is a substance with matter and form, its taken for granted that Socrates is a certain type of substance, in a category, genes, species, and it is obvious that Socrates is a rational animal. What is a rational animal, animals are physical things. * Distinction between what is and what can be. Socrates can be handsome even if hes not handsome, but he cannot be a sugarcookie. It is essential for Socrates to be a rational creature to be who he is. * If you want to be a substance your first must get into a category (species