Title: Bian zheng wei wu zhu yi yuan li
Description: Ben shu dui yuan shu zuo le jiao da de shan jie he xiu gai, bing zeng jia le da liang de xin nei rong, zeng da qi li lun rong liang, zeng qiang qi zheng ti luo ji xing.
Subjects: Dialectical materialism, Bian zheng wei wu zhu yi