"Because war and exploitation and poverty and racial discrimination and psychological insecurity plague modern societies, social science must justify itself by providing solutions for all of these problems. Yet social scientists may be no better equipped to solve these urgent problems today than were physicians, such as Harvey or Sydenham, to identify, study, and cure coronary thrombosis in 1655. Yet, as history testifies, the inadequacy of medicine to cope with this particular problem scarcely meant that it lacked powers of development. If everyone backs only the sure thing, who will support the colt yet to come into its own?"