"Just as animals die if they are plunged into water, since they are of the substance of earth. And again, just as fish die if they are brought up onto the earth, because they are of the nature of water. So also birds, which find their rest in the sky, fear being hunted on the land of the earth. Thus is the perfect soul, which remains in its own nature. If it renounces its own nature, it dies immediately."
- St Isaiah of Scetis
(Another Non-Chalcedonian Saint recognised by the Eastern Orthodox)