“性与天道”问题属于道德形而上学,在北宋儒学的兴起过程中,对这一问题的讨论成了儒家学者们普遍关心的话题。张载之所以被视为理学的奠基人,很大程度上是因为他在“性与天道”问题上作了理学的发挥,在宋儒中率先提出“性与天道合一”命题。张载与他的关学弟子们在“性与天道”问题上的探讨,根本目的是为了说明作为儒家道德核心的仁、义的根源以及人之道德实践的根 The issue of “nature and nature” belongs to moral metaphysics. During the rise of Confucianism in Northern Song Dynasty, the discussion on this issue became a topic of general concern to Confucian scholars. Zhang Zaizhi was regarded as the founder of Neo-Confucianism in large part because he made a play of Neo-Confucianism on the issue of “sex and nature”, and proposed the proposition of “unity of nature and heaven” in Song Confucianism. The basic purpose of Zhang Zai’s discussions with his Guan Xue disciples on the issue of “sex and nature” is to illustrate the root of benevolence and righteousness as the core of Confucianism and the root of human moral practice