Tempering red hearts in the vast world, striking root in the countryside without the desire to move

广阔天地炼红心扎根农村志不移
Guangkuo tiandi lian hongxin, zhagen nongcun zhi buyi
Tempering red hearts in the vast world, striking root in the countryside without the desire to move
1970, August
Shanghaishi chuban gemingzu (上海市出版革命组)
77x53 cm.
BG E37/50

The Mao quote on top reads "It is essential that educated youth go to the vilages, to receive re-education from the poor and lower-middle peasants" (知识青年到农村去,接受贫下中农的再教育,很有必要).