II. Oswald Spengler I

Only one who understands this begins to realize that the moment we start to deal with plant-life, this kind of thinking, grasped at first in its abstractness, leads to utter nonsense. Anyone who uses this kind of crystal-clear thinking—appropriate in its abstractness to the mineral world alone—not as a mere starting point for the development of human freedom, but instead employs it in thinking about the plant-world, will have before him in the plant-world something nebulous, obscure, mystical, which he cannot comprehend. For as soon as we look up to the plant-world we must understand that here—at least to the degree intended by Goethe with his primordial-plant ( Urpflanze), and with the principle by means of which he traced the metamorphosis of this primordial-plant through all plant-forms—here at least in this Goethean sense, everyone who approaches the plant-world with a recognition of the real force of the thought holding sway in the inorganic world must perceive that the plant-world remains obscure and mystical in the worst sense of our time, unless it is approached with imagination—at least in the sense in which Goethe established his botanical views.