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 present-day Turkmenistan. Sarianidi considered the Bactria–Margiana Archaeological Complex region as "the native land of the Zoroastrians and, probably, of Zoroaster himself." Boyce includes the steppes to the west from the Volga. The medieval "from Media" hypothesis is no longer taken seriously, and Zaehner has even suggested that this was a Magi-mediated issue to garner legitimacy, but this has been likewise rejected by Gershevitch and others. The 2005 "Encyclopedia Iranica" article on the history of Zoroastrianism summarizes the issue with "while there is general agreement that he did not live in western Iran, attempts to locate him in specific regions of