In the essay 'Philosophy and Anthroposophy' by Rudolf Steiner, we can find the following text:
'Fichte may at this point supplement Aristotle. A formula along Aristotelian lines may be reached to the effect that everything about us, including all things belonging to the invisible worlds, necessarily call for a material reality to correspond with form-reality. To Aristotle the idea of God is a pure actuality, a pure act, that is, an act in which actuality (the formative element) possesses the power to produce its own reality; it does not stand apart from matter, but by reason of its own activity fully and immediately coincides with reality.
'The image of this pure actuality is found in man himself, when by the process of pure thought he attains to the idea of the “I.” Upon this level (in the “I”) he is within the sphere of what Fichte calls “deed-act.” He has inwardly arrived at something which not only lives in actuality, but together with this actuality produces its own “matter.” When we grasp the “I” in pure thought we are in a centre where pure thought produces its own essential “matter.” When we apprehend the “I” in thought, a threefold “I” is at hand; a pure “I” belonging to the universalia ante rem; an “I” wherein we ourselves are, belonging to the universalia in re; and an “I” which we comprehend and which belongs to the universalia post rem. But here we must especially note that, in this case, when we rise to a true apprehension of the “I,” the threefold “I” becomes merged into one. The “I” lives within itself; it produces its own concept and lives therein as a reality. The activity of pure thought is not immaterial to the “I,” for pure thought is the creator of the “I.” Here the “creative” and the “material” coincide, and we must but acknowledge that, whereas in other processes of cognition we strike against a boundary, this is not the case with the “I” which we embrace in its inmost being when we enfold it in pure thought.
'The following fundamental axiom may therefore be formulated in the sense of the theory of cognition: “In pure thought a particular point is attainable wherein the complete convergence of the 'real' and the 'subjective' is achieved, and man experiences reality.” If we now set to work at this point, if we cultivate our thought so that it shall bear fruit and issue from itself — we then grasp the things of the world from within. In the “I,” therefore, grasped in pure thought and thereby also created, something is given whereby we may break down the barrier which, in the case of all other things, must be placed between “form” and “matter.”
'A well-founded and thoroughgoing theory of cognition may thus advance to the point of indicating a way into reality by means of pure thought. If this path be pursued, it will be found that it must eventually lead to Anthroposophy. (GA 35, Philosophy and anthroposophy, translation in English on rsarchive).
This text may seem difficult to understand. But after the preliminary thoughts of the last weeks, it should be crystal clear. Next week I will try to write this crystal-clearness.
Aristotle, completed by Fichte by Mieke Mosmuller