So I hold that the invisible powers of imagery in the eyes may project themselves to the object as do the images of the object to the eyes. An instance of how the images of all things are spread through the air may be seen if a number of mirrors be placed in a circle, and so that they reflect each other for an infinite number of times. For as the image of one reaches another it rebounds back to its source, and then becoming smaller rebounds again to the object and then returns, and so continues for an infinite number of times.
