Ethical dualism or, as theorized by Descartes, between thought and extension. Ethical dualism on the other hand highlights the moral dimension instead or in addition to the metaphysical one, and envisions an inherent situation of conflict between two antagonistic forces, like light and darkness, Good and Evil. One of the most known and clear-cut interpretations of ethical dualism is the one conceptualized by Zoroastrianism, the ancient Persian religion, which bases its thought on the figure of the prophet Zoroaster (or Zarathustra), who claimed the existence of two original and contrasting principles, Ahura Mazda and Ahriman, respectively representing the forces of Good and
Thus Spoke Zarathustra avert "nihilism" in all of its varied forms. Other aspects of "Thus Spoke Zarathustra" relate to Nietzsche's proposed "Transvaluation of All Values". This incomplete project began with "The Antichrist". While Nietzsche injects myriad ideas into the book, a few recurring themes stand out. The overman (Übermensch), a self-mastered individual who has achieved his full power, is an almost omnipresent idea in "Thus Spoke Zarathustra". Man as a race is merely a bridge between animals and the overman. The eternal recurrence, found elsewhere in Nietzsche's writing, is also mentioned. "Eternal recurrence" is the possibility that all events in one's life will