Georg Simmel — "The existence of secrets is a necessary condition for the existence of society."

"The atrophy of individual culture through the hypertrophy of objective culture is one reason for the bitter hatred which the preachers of the most extreme individualism, above all Nietzsche, harbour a…"

"By my existence I am nothing more than an empty place, an outline,that is reserved within being in general. Given with it, though, is the duty to fill in this empty place. That is my life."

"The soul is a battlefield where the forces of life and death struggle for supremacy."

"The deepest problems of modern life derive from the attempt of the individual to maintain the independence and individuality of his existence against the sovereign powers of society."

"The value of an object is not in its usefulness, but in its exchangeability."