14. Physio-and Pneumato-philosophy range, therefore, parallel to each other.
15. Physio-philosophy, however, holds the first rank, Pneumato-philosophy the second: the former, therefore, is the ground and foundation of the latter, for nature is antecedent to the human spirit.
16. Without Physio-philosophy, therefore, there is no Pneumato-philosophy, any more than a flower is present without a stem, or an edifice without foundation.
17. The whole of philosophy depends, consequently, upon the demonstration of the parallelism that exists between the activities of Nature and of Spirit.
18. It will be shown in the sequel that the Spiritual is antecedent to nature. Physio-philosophy must, therefore, commence from the spirit.
19. It will also be shown in the sequel that the whole Animal Kingdom, e. g. is, none other than the representation of the several activities or organs of Man; naught else than Man disintegrated. In like manner nature is none other than the representation of the individual activities of the spirit. As, therefore, Zoology can be termed the Science of the Conversion of Man into the Animal Kingdom, so may Physio-philosophy be called the Science of the Conversion of Spirit into Nature.
20. Physio-philosophy is divisible, therefore, into three parts. The _first_ of these treats of spirit and its activities; the _second_, of the individual phenomena, or things of the world; the _third_, of the continuous operation of spirit in the individual things.
The first division is the doctrine of the _Whole_ (de Toto)--_Mathesis_.
The second, that of _Singulars_ (de Entibus)--_Ontology_.
The third, that of the _Whole in the Singulars_ (de Toto in Entibus)--_Biology_.
21. The Science of the Whole must divide into two doctrines; into that of immaterial totalities--_Pneumatogeny_; and into that of material totalities--_Hylogeny_.
Ontology teaches us the phenomenon of matter. The first phenomenon of this are the heavenly bodies comprehended by _Cosmogony_; these develop themselves further, and divide into the elements--_Stochiogeny_.
From these elements the Earth element develops itself still further, and divides into minerals--_Mineralogy_; these minerals unite into one collective body, and this is _Geogeny_.