Description
In this, one of the most original ancient texts on sense perception, Philoponus considers how far perceptual processes are incorporeal. In his view, color affects us in the same way as light which, passing through a stained-glass window, affects the air, but colors only the masonry beyond. Sounds and smells are somewhat more physical, traveling most of the way to us with a moving block of air, but not quite all the way. Only the organ of touch takes on the tangible qualities perceived, because reception of sensible qualities in perception is cognitive, not physical. Neither light nor the action of color involves the travel of bodies. Our capacities for psychological activity do not follow, nor result from, the chemistry of our bodies, but merely supervene on that. Philoponus shows knowledge of the sensory nerves and he believes that thought and anger both warm us. This insight is used elsewhere to show how we can tell someone else's state of mind.
