Wolfram Eberhard,
A history of China., [3d ed. rev…
“ Was the will of the ruler to prevail and North China to become a country of pasturage, or was the country to keep to the agrarian tradition of the people under this rule? The Turkish and Mongol conquerors had recently given up their old supplementary agriculture and had turned into pure nomads, obtaining the agricultural produce they needed by raiding or trade. The conquerors of North China were now faced with a different question: if they were to remain nomads, they must either drive the peasants into the south, or make them into slave herdsmen, or exterminate them. ”
