Human Alienation in Modern Society

Humans and human development is a crucial issue always interested by all researchers, especially in the phylosophy of all times. Certainly, human development has not been developed as it had been in the past even has becoming alienated somehow. By rewiewing some particular phylosophers and their opinions about human alienation, this paper gives some features of human alienation and its characteristics of each historical periods. This issue should be further researched, and be regarded as the most urgent theme in terms of both theory and practice.