How does a mega-sized political party avoid weak governance? How can organizational coverage seamlessly reach emerging business sectors and new employment groups? In this exclusive interview with People's Daily, Professor Zhou Jianyong from the Party School of the CPC Shanghai Municipal Committee offers an in-depth analysis of major-party governance, self-reform and grassroots Party building. Drawing on the rise and fall of major political parties worldwide, he systematically explains the core logic behind the CPC's long-term vitality. (Produced by Han Xiaomeng, Lu Dong, Qiao Wai, Zou Yun, Zhu Yingqi, Ni Tao and intern Wang Jingyu)