(_α_) In the first place, however, this unity will assert itself as the _purposeless_ identity of such differences, that is to say with no abstract relation to any causal end whatever. The parts in such a case are not rendered visible to sense merely as a means to or in the service of some defined purpose, nor are they able to fix the determinate relation of form and structure which they occupy one over against the other. (_β_) Rather the contrary is the case, for, in the _second_ place, the bodily members have for our sense-perception the appearance of being quite _accidental_ in their form; in other words the determination of one appears to be quite indifferent to that of another. In other words, we can never conclude because one has a certain form another will have the same, as would be the case if a material uniformity was clear between them. Where uniformity is the rule an abstract determination of some kind of form, size, or whatever it may be, is the property of all parts. The windows of a building, for example, are all of one size, or at least are placed together in one row. Or we may illustrate the same similarity with the uniform worn by all soldiers belonging to one regiment. We have various parts of such clothing differing in colour, texture and the rest, but their formal opposition is no matter of chance; each has its causal connection with some other; it is there because the other is there. Neither is there here any complete distinction of form, nor any unique independence wholly asserted. With the individual organism of life the case is entirely otherwise. Here every part is absolutely distinguished; the nose from the forehead, the mouth from the cheek, the breast from the neck, the arms from the legs, and so on. Inasmuch as for our sense-perception every member possesses its unique form rather than one which belongs to another, or one which is determined by that of another, the members appear as self-subsistent parts, and for this reason free and spontaneous[227]. For the material juxtaposition of the parts alone throws no light upon their particular form.