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Brief: This article covers the West Lodge Debates under Southern Qi. Prince Xiao Ziliang hosted a scholarly circle including Zu Chongzhi, who calculated pi precisely. Skeptic Fan Zhen challenged Buddhist karma with On the Annihilation of the Spirit, sparking a landmark faith–reason clash. It captures a rare golden age of southern culture and thought.
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Zu Chongzhi (429–500 CE) was a preeminent scientist of the Southern Dynasties during the Northern and Southern Dynasties period. His courtesy name was Wenyuan, and his ancestral home was Qiu County, Fanyang Commandery (in present-day Laishui, Hebei).