Gaozi claims food and desire form human nature, benevolence springs from within while righteousness comes from external elders. Mencius refutes this with analogies, proving both virtues stem from inner moral hearts instead of outside stimuli.
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.