For 10 points, name this author of "The Metropolis and Mental Life" and The Philosophy of Money.
This thinker determined three roles for a person who enters a group as its third member and claimed that three was the smallest number under which a group as a whole could impose its will on individuals. In another essay, this man claims "extremities and peculiarities" are produced and exaggerated to preserve an individual's awareness of himself in the face of impersonal market forces. That essay explains how rapidly-changing stimuli and an impersonal market cause people of the title locale to become purely rational and analyzes fashion in order to examine social relation in the first title place. In another work, this thinker argued that the title substance is a symbol and functions as an objectified measure of value. That substance's distance from individualism allows one to engage in impersonal means of exchange. For 10 points, name this author of "The Metropolis and Mental Life" and The Philosophy of Money.
This thinker determined three roles for a person who enters a group as its third member and claimed that three was the smallest number under which a group as a whole could impose its will on individuals.
Georg Simmel