After reading the original work of "Bright Sword", I understood the secret behind why Chu Yunfei held the Hongmen Banquet but did not attack Li Yunlong
"Filial piety comes first", Zhu Yuanzhang's policy of favoring the elderly can be regarded as a model for emperors of all dynasties to respect and care for the elderly.
On the afternoon of May 4, 1960, Chairman Mao inspected the Shandong Province Technological Innovation and Technological Revolution New Achievements Exhibition