Every great philosophical movement needs a critic from within. Pei Wei was Xuanxue's internal dissenter — a thinker who accepted the movement's intellectual standards but rejected its conclusions. His Chongyou Lun ("Essay Upholding Being") is the most rigorous counter-argument to the non-being school.
Life in Brief
Born in 267 CE, Pei Wei came from one of the most powerful families of the Western Jin. His mother was a member of the Sima imperial clan. He rose to high office and was known for his administrative skill, his integrity, and his willingness to speak uncomfortable truths.
He was also, by all accounts, a brilliant debater. In the intellectual salons of Luoyang, he was the one who pushed back against the fashionable talk of "nothingness" and "non-being."
He died young — killed in the political chaos of the War of the Eight Princes (300 CE) at the age of thirty-three.
The Argument
Pei Wei's core claim was simple and devastating: "Nothingness cannot produce being."
If "non-being" is truly nothing — formless, nameless, without properties — then it cannot be a cause. Causation requires a cause. An empty cause is no cause at all. Therefore, the claim that the world of concrete things emerges from "nothingness" is incoherent.
"If we speak of 'non-being,' then there is nothing to speak of. If there is nothing, how can it give rise to the ten thousand things?" — Pei Wei, Chongyou Lun
But Pei Wei went further. He argued that the world of concrete things — what Xuanxue called "being" (有) — is self-sustaining. Each thing has its own nature (性), its own principle. You don't need a cosmic void to explain existence. Things exist because that is what things do.
The Social Critique
Pei Wei was not just making a metaphysical argument. He was making a social critique. The Xuanxue thinkers of his day, intoxicated by talk of "nothingness" and "transcending norms," were abandoning their responsibilities.
The Danger of Abstraction
Pei Wei argued that the "non-being" philosophy led directly to social neglect. If the world of concrete things is illusory, why bother governing? If norms are artificial, why obey the law? The Xuanxue obsession with the formless and the abstract was, in his view, a recipe for chaos — and the chaos of the late Jin proved his point.
Legacy
Pei Wei's philosophical arguments were ultimately absorbed rather than refuted. Guo Xiang's "self-transformation" theory incorporated Pei Wei's insight that things are self-sustaining — while adding the Zhuangzi's perspective that there is no need for a cosmic ground at all.
But his social critique remained urgent. The tension between philosophical abstraction and practical engagement is one that every intellectual tradition faces — and Pei Wei's warning about the dangers of "pure theory" echoes through Chinese history.