Besides these, are there not other contrivances that look like the results of forethought? Thus the eyeballs, being weak, are set behind eyelids, that open like doors when we want to see, and close when we sleep: on the lids grow lashes through which the very winds filter harmlessly: above the eyes is a coping of brows that lets no drop of sweat from the head hurt them. The ears catch all sounds, but are never choked with them. Again, the incisors of all creatures are adapted for cutting, the molars for receiving food from them and grinding it. And again, the mouth, through which the food they want goes in, is set near the eyes and nostrils; but since what goes out is unpleasant, the ducts through which it passes are turned away and removed as far as possible from the organs of sense. With such signs of forethought in these arrangements, can you doubt whether they are the works of chance or design?”
“No, of course not.