Russian serfs were liberated in 186 1, American slaves were liberated in 1863 and in 1865 by the 13th amendment, and agriculture was abolished in Galicia, the hometown of Leopold Sack Mosok, in 1848. It can be seen that Europe and America were the general trend of serfdom at that time, but those aristocratic classes were still worried. Just as houseman described De Exeter's attempt to resist the popularization trend brought by science and technology, Mosok described that the nobles were still immersed in the ideological infatuation with the superiority of serfdom.