Between Charybdis and Scylla (105)

"Thus it is in nature of that individuality, and not in that of its component elements, that we must search for the proximate and determining causes of the facts produced in it. The group thinks, feels and acts entirely differently from the way its members would if they were isolated. If therefore we begin by studying these members separately, we will understand nothing about what is taking place in the group. In a word, there is between psychology and sociology the same break in continuity as there is between biology and the physical and chemical sciences."

-Emile Durkheim
The Rules of Sociological Method, tr. W. D. Halls (Macmillan, London 1982)
p. 129