Contradiction between enslaved people by nowaday life and their need of unrestrained development is a serious prob- lem.

Afer September 18th Incident, Japanese troops invaded Northeast China,established Manchukuo, plundered Chinese resources feverishly, enslaved Chinese people.

Second,there is a paradox between slavery and liberation in labour.

Among the living ways of agricultural cultivation built according to the living materials of agricultural plants in Ancient Greece, people were firstly influenced by the ample and poor harvest of the plants limited by natural elements and their regular slavery.

Content: "Slavery" is a dark phenomena which has been existing in China for thousands of years and "slavishness" is a deep-rooted disease in the character of Chinese people, so" protest against slavery "became a vital literature subject during the enlightenment period of last century.

A Mercy, Toni Morrison\'s new novel, describes the physical and spiritual enslavement suffered by both slaves of different races (blacks, native Indians, and white contracted laborers) under slavery and the"free" whites whose historical and mental limitations shaped their lives in the early colonial period of the New Continent.