Mao's calligraphies are two of the closing remarks from his 'Speech at a conference of cadres in the Shansi-Suiyuan Liberated Area', April 1, 1948.

On the left:
To rely on the poor peasants, unite with the middle peasants, abolish the system of feudal exploitation step by step and in a discriminating way, and develop agricultural production. Mao Zedong
(依靠贫农团结小农有步骤地有分别地消灭封建剥削制度发展生产。毛泽东, Yikao pinnong tuanjie xiaonong you buzhou di you fen bie de xiaomie fengjian boxue zhidu fazhan shengchan. Mao Zedong)

On the right:
The revolution against imperialism, feudalism and bureaucrat-capitalism waged by the broad masses of the people under the leadership of the proletariat. Mao Zedong
(无产阶级领导的人民大众的反对帝国主义封建主义官僚资本主义的革命。毛泽东, Wuchan jieji lingdao de renmin dazhong de fandui diguo zhuyi fengjian zhuyi guanliao ziben zhuyi de geming. Mao Zedong)