This image and quote is from the Emory University site. Please note the significant differences in translation!
In DD 201 Simmel is used in book 3 on Social Change. Simmel was an important sociologist writing on the changes wrought by modernity in relation to the city at the start of the 20th century. Simmel's essay'The Metropolis and Mental Life' has become a sociological classic. simmel is particualrly helpful when considering social change and the ways in which social interactions in the rapidly growing cities were changing people's social behaviours in quite radical ways.
The deepest problems of modern life flow from the attempt of the individual to maintain the independence and individuality of his [sic] existence against the sovereign powers of society, against the weight of historical heritage and the external culture and technique of life. (Cited Social Change p 19)