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 the magi, Zoroaster's disciples and successors," for their opinion. While the division along the lines of Zoroaster/astrology and Ostanes/magic is an "oversimplification, the descriptions do at least indicate what the works are "not""; they were not expressions of Zoroastrian doctrine, they were not even expressions of what the Greeks and Romans ""imagined" the doctrines of Zoroastrianism to have been" [emphases in the original]. The assembled fragments do not even show noticeable commonality of outlook and teaching among the several authors who wrote under each name. Almost all Zoroastrian pseudepigrapha is now lost, and of the attested texts—with only one exception—only