(2.) And yet, since all our knowledge is relative, we have an obscure knowledge of the hidden and inscrutable essence of the correlate of our knowledge of phenomena. We know that it exists. (3.) Though what is inconceivable is for that reason unknowable, yet we know that persistence belongs to force, motion and matter; it is a positive result of our “mental structure,” although we cannot conceive either destructibility or indestructibility. (4.) Though self-consciousness is an impossibility, yet it sometimes occurs, since the “substance of consciousness” is the object of consciousness when it decides upon the persistence of the Universe, and of Force, Matter, etc. THEOLOGY. The Supreme Being is unknown and unknowable; unrevealed and unrevealable, either naturally or supernaturally; for to reveal, requires that some one shall comprehend what is revealed. The sole doctrine of Religion of great value is the doctrine that God transcends the human intellect. When Religion professes to reveal Him to man and declare His attributes, then it is irreligious. Though God is the unknown, yet personality, reason, consciousness, etc., are degrading when applied to Him. The “Thirty-nine Articles” should be condensed into one, thus: “There is an Unknown which I know that I cannot know.“ “Religions are envelopes of truth which reveal to the lower, and conceal to the higher.” “They are modes of manifestation of the unknowable.” COSMOLOGY. “Evolution is a change from an indefinite, incoherent homogeneity, to a definite, coherent heterogeneity; through continuous differentiations and integrations.” This is the law of the Universe. All progresses to an equilibration—to a moving equilibrium. INTRODUCTION TO FICHTE’S SCIENCE OF KNOWLEDGE. TRANSLATED BY A. E. KROEGER. [NOTE.—In presenting this “Introduction” to the readers of the Journal of Speculative Philosophy, we believe we afford them the easiest means of gaining an insight into Fichte’s great work on the Science of Knowledge. The present introduction was written by Fichte in 1797, three years after the first publication of his full system. It is certainly written in a remarkably clear and vigorous style, so as to be likely to arrest the attention even of those who have but little acquaintance with the rudiments of the Science of Philosophy. This led us to give it the preference over other essays, also written by Fichte, as Introductions to his Science of Knowledge. A translation of the Science of Knowledge, by Mr. Kroeger, is at present in course of publication in New York. This article is, moreover, interesting as being a more complete unfolding of the doctrine of Plato upon Method, heretofore announced.—ED.] PRELIMINARY REMARKS.