Nietzsche´s Philosophy: A System in Aphorisms; The Division of Nietzsche´s Writings into Peirods; The Unifying Fundamental Idea in Nietzsche´s Philosophy; The Anti-Christian Repetition of Antiquity on the Peak of Modernity; `How One Becomes What-One is` in the Idea of Eternal Recurrence; The Problematic Connection between the Existence of Man and the Being of the World in the History of Modern Philosophy; The Critical Yardstick for Nietzsche´s Experiment