Structural functionalism is a broad perspective in the social sciences which addresses social structure in terms of the function of its constituent elements, namely norms, customs, traditions and institutions. A common analogy, popularised by Herbert Spencer, regards these aspects of society as "organs" that work toward the proper functioning of the "body" as a whole. The perspective was implicit in the thought of the original sociological positivist, Auguste Comte, who stressed the need for cohesion after the social malaise of the French revolution. It was later presented in the work of Emile Durkheim, who developed a full theory of organic solidarity, again informed by positivism, or the quest for "social facts."