Usually philosophical problems are overcome not by their resolution but rather by redefinition. Displacements of power in the realm of concepts accompany these new orientations. In this sense, the history of thought can be seen as the sometimes imperceptibly fluid, sometimes bizarre and abrupt, movements of our concepts. It is known that Nietzsche experienced his thought as a scene of logical turbulence which called forth a revaluation of all values. This revaluation completed itself when the leading concepts of the old order reversed or lost their traditional meanings, and all the rest had thereby to appear in a new light. In the following, this revaluation is developed with respect to two central concepts of traditional philosophy that Nietzsche, without defining them anew or otherwise, employed only casually, although their meaning was radically transformed as a consequence of the general revaluation — intuition and imagination. The topic concerns concepts that serve to describe human knowledge, but which simultaneously should also signify real functions of the knowing soul. And it is essential to remember that these concepts, according to traditional understandings, never meant the same things but each of them meant something different, and in some respects even meant something contradictory.