Man's characteristic privilege is that the bond he accepts is not physical but moral; that is, social. He is governed not by a material environment brutally imposed on him, but by a conscience superior to his own . . .
Source: Suicide, bk. 2, ch. 5, sct. 2 (1897; tr. 1951).
-- Emile Durkheim, (Apr 15 1858-1917), French sociologist; He is noted primarily for his dark work about Suicide, 1951.