As regards the second kind of teleology, according to the division made above, the outer design, which shows itself, not in the inner economy of the organisms, but in the support and assistance they receive from without, both from unorganised nature and from each other; its general explanation is to be found in the exposition we have just given. For the whole world, with all its phenomena, is the objectivity of the one indivisible will, the Idea, which is related to all other Ideas as harmony is related to the single voice. Therefore that unity of the will must show itself also in the agreement of all its manifestations. But we can very much increase the clearness of this insight if we go somewhat more closely into the manifestations of that outer teleology and agreement of the different parts of nature with each other, an inquiry which will also throw some light on the foregoing exposition. We shall best attain this end by considering the following analogy.
The character of each individual man, so far as it is thoroughly individual, and not entirely included in that of the species, may be regarded as a special Idea, corresponding to a special act of the objectification of will. This act itself would then be his intelligible character, and his empirical character would be the manifestation of it. The empirical character is entirely determined through the intelligible, which is without ground, i.e., as thing-in-itself is not subordinated to the principle of sufficient reason (the form of the phenomenon). The empirical character must in the course of life afford us the express image of the intelligible, and can only become what the nature of the latter demands. But this property extends only to the essential, not to the unessential in the course of life to which it applies. To this unessential belong the detailed events and actions which are the material in which the empirical character shows itself. These are determined by outward circumstances, which present the motives upon which the character reacts according to its nature; and as they may be very different, the outward form of the manifestation of the empirical character, that is, the definite actual or historical form of the course of life, will have to accommodate itself to their influence. Now this form may be very different, although what is essential to the manifestation, its content, remains the same. Thus, for example it is immaterial whether a man plays for nuts or for crowns; but whether a man cheats or plays fairly, that is the real matter; the latter is determined by the intelligible character, the former by outward circumstances. As the same theme may be expressed in a hundred different variations, so the same character may be expressed in a hundred very different lives. But various as the outward influence may be, the empirical character which expresses itself in the course of life must yet, whatever form it takes, accurately objectify the intelligible character, for the latter adapts its objectification to the given material of actual circumstances. We have now to assume something analogous to the influence of outward circumstances upon the life that is determined in essential matters by the character, if we desire to understand how the will, in the original act of its objectification, determines the various Ideas in which it objectifies itself, that is, the different forms of natural existence of every kind, among which it distributes its objectification, and which must therefore necessarily have a relation to each other in the manifestation. We must assume that between all these manifestations of the one will there existed a universal and reciprocal adaptation and accommodation of themselves to each other, by which, however, as we shall soon see more clearly, all time-determination is to be excluded, for the Idea lies outside time. In accordance with this, every manifestation must have adapted itself to the surroundings into which it entered, and these again must have adapted themselves to it, although it occupied a much later position in time; and we see this consensus naturæ everywhere. Every plant is therefore adapted to its soil and climate, every animal to its element and the prey that will be its food, and is also in some way protected, to a certain extent, against its natural enemy: the eye is adapted to the light and its refrangibility, the lungs and the blood to the air, the air-bladder of fish to water, the eye of the seal to the change of the medium in which it must see, the water-pouch in the stomach of the camel to the drought of the African deserts, the sail of the nautilus to the wind that is to drive its little bark, and so on down to the most special and astonishing outward adaptations.40 We must abstract however here from all temporal relations, for these can only concern the manifestation of the Idea, not the Idea itself. Accordingly this kind of explanation must also be used retrospectively, and we must not merely admit that every species accommodated itself to the given environment, but