Without seeds flowers don't grow, without culture it is difficult to manage affairs, all together study culture, realizing the Four Modernizations must depend on that
没有种子不开花,没有文化难当家,大家齐把文化学,实现四化要靠它
Meiyou zhongzi bu kaihua, meiyou wenhua nan dang jia, dajie qi ba wenhua xue, shixian sihua yao kao ta
An exhortation to fight illiteracy as a condition of progress, against the backdrop of the Great Leap Forward. The Four Modernizations from the title are not the same as those of the 1980s. Note the cropduster!