This article describes the group of ninth-century Zoroastrian philosophers I call the ‘Dēnkard School’ and sketches the way they do philosophy. It presents their argument against substance dualism, which the Zoroastrians argue is in tension with the belief in repentance. From an analysis of this polemic, there follows a reconstruction of the Dēnkard School's own doctrine of the consubstantiality of body and soul. To understand these arguments, I describe some background eschatological and ontological beliefs upheld by the Dēnkard School and their specific conception of substance, which includes the notions of ownership and responsibility. Overall, the argument can be seen as a new position on a traditional problem, and so increasing the scope of philosophy in a more global perspective.

本文描述了我称之为“登卡德学派”的九世纪琐罗亚斯德教哲学家团体，并概述了他们研究哲学的方式。它提出了他们反对物质二元论的论点，琐罗亚斯德教徒认为物质二元论与悔改的信仰存在紧张关系。通过对这场争论的分析，可以重建登卡德学派自己的身体与灵魂同体性学说。为了理解这些论点，我描述了登卡德学派所坚持的一些背景末世论和本体论信念及其具体的实质概念，其中包括所有权和责任的概念。总体而言，这一论点可以被视为对传统问题的新立场，从而以更全球的视角扩大了哲学的范围。