In accordance with this, the distinction between what have been badly named natural causes and the final causes has to be determined. Now if I isolate individuality and merely regard it as movement and the moments of the same, I show what are natural causes. For example, where has this life taken its origin? Through the generation of this its father and mother. What is the cause of these fruits? The tree whose juices so distil themselves that the fruit forthwith arises. Answers of this kind give the causes, _i.e._ the individuality opposed to an individuality; but their principle is the genus. Now nature cannot represent essence as such. The end of generation is the sublation of the individuality of Being; but nature which in existence certainly brings about this sublation of individuality, does not set the universal in its place, but another individual. Bones, muscles, &c., bring forth a movement; they are causes, but they themselves are so through other causes, and so on into infinitude. The universal, however, takes them up into itself as moments which undoubtedly appear in movement as causes, though the fundamental ground of these parts actually is the whole. It is not they which come first, but the result into which the juices of the plants, &c., pass, is the first, just as in origination it appears only as product, as seed, that which constitutes the beginning and the end, even though they be in different individuals. Their real nature is the same. But such a genus is itself a particular genus and is essentially related to another, _e.g._ the Idea of the plant to that of the animal; the universal moves on. This looks like external teleology—that plants are eaten by animals, &c., in which their limitation as genus lies. The genus of the plant has the absolute totality of its realization in the animal, the animal in the conscious existence, just as the earth has it in the plant. This is the system of the whole in which each moment is transitory. The double method of considering the matter thus is that each Idea is a circle within itself, the plant or the animal the Good of its kind; and, on the other hand, each is a moment in the universal Good. If I consider the animal merely as externally adapted to an end, as created for something else, I consider it in a one-sided way; it is real existence, in and for itself universal. But it is just as one-sided to say that the plant, for instance, is only in and for itself, only end to itself, only shut up within itself and going back into itself. For each idea is a circle which is complete in itself, but whose completion is likewise a passing into another circle; it is a vortex whose middle point, that into which it returns, is found directly in the periphery of a higher circle which swallows it up. Thus, for the first time, we reach the determination of an end in the world which is immanent within it.