Causal Role Theories of Functional Explanation Functional explanations are a type of explanation offered in the natural and social sciences. In giving these explanations, researchers appeal to the functions that a structure or system has. For instance, a biologist might say, “The kidney has the function of eliminating waste products from the bloodstream.” Or a sociologist might say, “The purpose of monogamy is to preserve the

Ralph Waldo Emerson (1803—1882) In his lifetime, Ralph Waldo Emerson became the most widely known man of letters in America, establishing himself as a prolific poet, essayist, popular lecturer, and an advocate of social reforms who was nevertheless suspicious of reform and reformers. Emerson achieved some reputation with his verse, corresponded with many of the leading intellectual and artistic figures of his day, and during

Hans-Georg Gadamer (1900—2002) Hans-Georg Gadamer was a leading Continental philosopher of the twentieth century. His importance lies in his development of hermeneutic philosophy. Hermeneutics, “the art of interpretation,” originated in biblical and legal fields and was later extended to all texts. Martin Heidegger, Gadamer’s teacher, completed the universalizing of the scope of hermeneutics by extending it beyond texts to all forms of human understanding. Hence

Reductionism Reductionists are those who take one theory or phenomenon to be reducible to some other theory or phenomenon. For example, a reductionist regarding mathematics might take any given mathematical theory to be reducible to logic or set theory. Or, a reductionist about biological entities like cells might take such entities to be reducible to collections of physico-chemical entities like atoms and molecules. The type

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Diogenes of Apollonia (5th cn. B.C.E.) Diogenes of Apollonia is often considered to be the last of the Presocratic Greek philosophers, although it is more than likely that Democritus was still active after the death of Diogenes. Diogenes’ main importance in the history of philosophy is that he synthesized the earlier Ionic monism of Anaximenes and Heraclitus with the pluralism of Empedocles and Anaxagoras. Diogenes serves as a sort