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 raindrops of a travelling storm cloud; or the sun's rise and culmination at its midday zenith; or a man traversing a rope stationed above an abyss, moving away from his uncultivated animality and towards the "Übermensch". The symbol of the "Übermensch" also alludes to Nietzsche's notions of "self-mastery", "self-cultivation", "self-direction", and "self-overcoming". Expounding these concepts, Zarathustra declares: The book embodies a number of innovative poetical and rhetorical methods of expression. It serves as a parallel and supplement to the various philosophical ideas present in Nietzsche's body of work. He has, however, said that "among my writings my Zarathustra stands to