IX. The Idea of Spiritual Activity

The highest level of individual life is conceptual thinking without regard to a specific content of perception. We determine the content of a concept through pure intuition out of the ideal sphere. Such a concept then contains, to begin with, no relation to specific perceptions. When, under the influence of a concept which points to a perception—that is, under the influence of a mental picture—we enter into willing, then it is this perception that determines us in a roundabout way through conceptual thinking. When we act under the influence of intuitions, then the mainspring of our action is pure thinking. Since one is used, in philosophy, to calling the ability of pure thinking “reason,” so one is also fully justified in calling the mainsprings of morality on the level just characterized, practical reason. The clearest account of these mainsprings of will has been given by Kreyenbühl (“Philosophical Monthly” Vol. XVIII, No.3).[^4] I consider his article in this subject to be one of the most significant creations of modern philosophy, more particularly of ethics. Kreyenbühl describes the mainsprings of action we are discussing as practical a priori, that means an impulse to action flowing directly out of my intuition.