During the act of knowledge itself, the objective and subjective are so instantly united, that we cannot determine to which of the two the priority belongs. There is here no first, and no second; both are coinstantaneous and one. While I am attempting to explain this intimate coalition, I must suppose it dissolved. I must necessarily set out from the one, to which therefore I give hypothetical antecedence, in order to arrive at the other. But as there are but two factors or elements in the problem, subject and object, and as it is left indeterminate from which of them I should commence, there are two cases equally possible. 1. EITHER THE OBJECTIVE IS TAKEN AS THE FIRST, AND THEN WE HAVE TO ACCOUNT FOR THE SUPERVENTION OF THE SUBJECTIVE, WHICH COALESCES WITH IT. The notion of the subjective is not contained in the notion of the objective. On the contrary they mutually exclude each other. The subjective therefore must supervene to the objective. The conception of nature does not apparently involve the co-presence of an intelligence making an ideal duplicate of it, that is, representing it. This desk for instance would (according to our natural notions) be, though there should exist no sentient being to look at it. This then is the problem of natural philosophy. It assumes the objective or unconscious nature as the first, and as therefore to explain how intelligence can supervene to it, or how itself can grow into intelligence. If it should appear, that all enlightened naturalists, without having distinctly proposed the problem to themselves, have yet constantly moved in the line of its solution, it must afford a strong presumption that the problem itself is founded in nature. For if all knowledge has, as it were, two poles reciprocally required and presupposed, all sciences must proceed from the one or the other, and must tend toward the opposite as far as the equatorial point in which both are reconciled and become identical. The necessary tendency therefore of all natural philosophy is from nature to intelligence; and this, and no other is the true ground and occasion of the instinctive striving to introduce theory into our views of natural phaenomena. The highest perfection of natural philosophy would consist in the perfect spiritualization of all the laws of nature into laws of intuition and intellect. The phaenomena (the material) most wholly disappear, and the laws alone (the formal) must remain. Thence it comes, that in nature itself the more the principle of law breaks forth, the more does the husk drop off, the phaenomena themselves become more spiritual and at length cease altogether in our consciousness. The optical phaenomena are but a geometry, the lines of which are drawn by light, and the materiality of this light itself has already become matter of doubt. In the appearances of magnetism all trace of matter is lost, and of the phaenomena of gravitation, which not a few among the