"All of these are finally transformed back into their primary substances, the Earth feeding the Plant, the Plant the Worm, the Worm the Bird, and often the Bird the Beast of Prey; Then finally the Beast of Prey is consumed the Bird of Prey, the Bird of Prey by the Worm, the Worm by the Herb, the Herb by the Earth: Man indeed, who turns everything to his needs, is often consumed by the Beast, the Bird, or the Fish which preys on him, by the Worm or the Earth. It is thus that everything circulates."