SINCE MATTER CANNOT BE DESTROYED, IT CANNOT BE AFFECTED.
8. (According to Aristotle[59]), it is absolutely necessary that what can be affected must have powers and qualities opposed to the things that approach it, and affect it. Thus, it is the cold that alters the heat of an object, and humidity that alters its dryness, and we say that the substrate is altered, when it ceases being hot, and grows cold; and ceasing to be dry, becomes humid. Another proof of this truth is the destruction of the fire that, by changing, becomes another element. Then we say that it is the fire, but not the matter that has been destroyed. What is affected is therefore that which is destroyed; for it is always a passive modification that occasions destruction. Consequently being destroyed and being affected are inseparable notions. Now it is impossible for matter to be destroyed; for how could it be destroyed, and in what would it change?