The study of social structure is the study of the system of social relations.
社会结构的研究是对社会关系系统的研究。
"To be an actor is to be a lifelong student of human nature."
格瓦拉第二次漫游南美前对母亲说
我看不到极限,我只看到可能性。
The greatest glory in living lies not in never falling, but in rising every time we fall.