In reference to the relation of form and content in the field of science, we should recollect the difference between philosophy and the rest of the sciences. The latter are finite, because their mode of thought, as a merely formal act, derives its content from without. Their content therefore is not known as moulded from within through the thoughts which lie at the ground of it, and form and content do not thoroughly interpenetrate each other. This partition disappears in philosophy, and thus justifies its title of infinite knowledge. Yet even philosophic thought is often held to be a merely formal act; and that logic, which confessedly deals only with thoughts _quâ_ thoughts, is merely formal, is especially a foregone conclusion. And if content means no more than what is palpable and obvious to the senses, all philosophy and logic in particular must be at once acknowledged to be void of content, that is to say, of content perceptible to the senses. Even ordinary forms of thought however, and the common usage of language, do not in the least restrict the appellation of content to what is perceived by the senses, or to what has a being in place and time. A book without content is, as every one knows, not a book with empty leaves, but one of which the content is as good as none. We shall find as the last result on closer analysis, that by what is called content an educated mind means nothing but the presence and power of thought. But this is to admit that thoughts are not empty forms without affinity to their content, and that in other spheres as well as in art the truth and the sterling value of the content essentially depend on the content showing itself identical with the form. 134.] But immediate existence is a character of the subsistence itself as well as of the form: it is consequently external to the character of the content; but in an equal degree this externality, which the content has through the factor of its subsistence, is essential to it. When thus explicitly stated, the phenomenon is relativity or correlation: where one and the same thing, viz. the content or the developed form, is seen as the externality and antithesis of independent existences, and as their reduction to a relation of identity, in which identification alone the two things distinguished are what they are. (c) _Relation or Correlation._ 135.] (α) The immediate relation is that of the Whole and the Parts. The content is the whole, and consists of the parts (the form), its counterpart. The parts are diverse one from another. It is they that possess independent being. But they are parts, only when they are identified by being related to one another; or, in so far as they make up the whole, when taken together. But this 'Together' is the counterpart and negation of the part.