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
Zoroaster a biography typical of a Neopythagorean sage, i.e. having a mission preceded by ascetic withdrawal and enlightenment. However, at first mentioned in the context of dualism, in Moralia, Plutarch presents Zoroaster as "Zaratras," not realizing the two to be the same, and he is described as a "teacher of Pythagoras". Zoroaster has also been described as a sorcerer-astrologerthe creator of both magic and astrology. Deriving from that image, and reinforcing it, was a "mass of literature" attributed to him and that circulated the Mediterranean world from the 3rd century BCE to the end of antiquity and beyond. The language of