The history of the other Sciences, of culture and above all the history of art and of religion are, partly in regard to the elements contained in them, and partly to their particular objects, related to the history of Philosophy. It is through this relationship that the treatment of the history of Philosophy has been so confused. If it is to concern itself with the possession of culture generally and then with scientific culture, and then again with popular myths and the dogmas contained only in them, and yet farther with the religious reflections which are already thoughts of a speculative kind, and which make their appearance in them, no bounds are left to Philosophy at all. This is so, partly on account of the amount of material itself and the labour required in working it up and preparing it, and partly because it is in immediate connection with so much else. But the separation must not be made arbitrarily or as by chance, but must be derived from fundamental determinations. If we merely look at the name of Philosophy, all this matter will pertain to its history. I shall speak of this material from three points of view, for three related aspects are to be eliminated and separated from Philosophy. The first of these is that which is generally considered to be the domain of science, and in which are found the beginnings of understanding thought. The second region is that of mythology and religion; the relation of Philosophy to them seems often to be inimical both in the time of the Greeks and of the Christians. The third is that of philosophizing and the metaphysics of the understanding. While we distinguish what is related to Philosophy, we must also take note of the elements in this related matter which belong to the Notion of Philosophy, but which appear to us to be partially separated from it: and thus we may become acquainted with the Notion of Philosophy. a. _Relation of Philosophy to Scientific Knowledge._ Knowledge and thought certainly form the element of whatever has to do with particular sciences as they form the element of Philosophy; but their subjects are mainly finite subjects and appearance. A collection of facts known about this content is by its nature excluded from Philosophy: neither this content nor such a form has anything to do with it. But even if the sciences are systematic and contain universal principles and laws from which they proceed, they are still related to a limited circle of objects. The ultimate principles are assumed as are the objects themselves; that is, the outward experience or the feelings of the heart, natural or educated sense of right and duty, constitute the source from which they are created. Logic and the determinations and principles of thought in general are in their methods assumed.