"Liberalism is committed to the idea of historic relativity. It knows that the content of the individual and freedom change with time; that this is as true of social change as it is of individual development from infancy to maturity. The positive counterpart of opposition to doctrinal absolutism is experimentalism. The connection between historic relativity and experimental method is intrinsic. Time signifies change. The significance of individuality with respect to social policies alters with ch"