The Most Secret Rosary of the Philosophers

because there is no fitting generation except from things that are convenient in nature.

CAPVT III. Chapter III

Therefore, it is called into doubt what the thing is of which the philosophers speak, since none of them expresses it. Regarding this, therefore, different people have sanctioned different things, although truth consists in one thing alone. We certainly guard this thing dearly and teach that all other things should be avoided; for it is clear through the writings of the Philosophers: that the Thing is one, and that no foreign thing ought to be joined to it, because nothing is suitable to a thing except what is most proximate to it by its own nature. For things do not bring forth anything except things like themselves, nor do they bear fruit except their own fruits. For a human begets a human, and a lion a lion; thus everything generates its own likeness. A mule, since it is from different genera, never receives itself, nor is it generated from its own like parents; so it is with all things procreated from a different genus. Therefore, it is necessary that the elements be of one genus and not of a different one; otherwise, they would not have action and passion toward one another, since one would not touch the other. Therefore, since things are from one genus, their roots are one.