Overview
Zhang Zai (1020–1077) was a Northern Song Neo-Confucian cosmologist and moral thinker associated with the “gas” (qi) metaphysics of the period. Teaching in Guanzhong, he influenced later Cheng-Zhu orthodoxy even where they revised him. The Western Inscription became a famous statement of cosmic kinship. Handbook dates: 1020–1077. He bridges classical Confucian ethics and Song metaphysical systematization.
Main ideas
All things are condensations and dispersions of qi; void and form are phases of one continuum. Heaven and Earth are parents; all people are siblings—ethics expands from cosmic kinship. Human nature must be clarified by transforming impure qi through ritual and learning. Knowledge of the moral mind differs from mere sensory knowing. Pacifism and practical statecraft appear in his political reflections. The Western Inscription lyricizes unity without erasing differentiated duties.
Major works
- Correcting Ignorance (Zheng meng)
- Western Inscription
- Collected works (Zhangzi quanshu)
Legacy
Zhang’s qi cosmology shaped Neo-Confucian natural philosophy and modern New Confucian retrievals. The Western Inscription remains a touchstone for Confucian universalism. He ranks among the foundational Song masters.