by argument. The former can be understood as told by James A. Herrick in The History and Theory of Rhetoric: An Introduction:The Sophists in Gorgias hold that rhetoric creates truth that is useful for the moment out of doxa, or the opinions of the people, through the process of argument and counterargument. Socrates will have no part of this sort of 'truth' which, nevertheless, is essential to a democracy. Importantly noted, democracy, which by definition is the manifestation of public opinion, is dependent upon (and therefore also constrained by) the same limits imposed upon the individuals responsible for its establishment. Due to compromised opinions within a society, as well as opinions not counted for due to inaccessibility and apathy, doxa is not homogeneous, nor is it created agreeably. Rather, it is pliable and imperfect—the outcome of an ongoing power struggle between clashing "truths." Aristotle Aristotle, Plato's student, objected to Plato's theory of doxa. Aristotle perceived that doxa's value was in practicality and common usage, in contrast with Plato's philosophical purity relegating doxa to deception. Further, Aristotle held doxa as the first step in finding knowledge (episteme), as doxa had found applications in the physical world, whereby those who held it had a great number of tests done to prove it and thus reason to believe it. Aristotle clarifies this by categorizing the accepted truths of the physical world that are passed down from generation to generation as endoxa. Endoxa is a more stable belief than doxa, because it has been "tested" in argumentative struggles in the Polis by prior interlocutors. The term endoxa is used in Aristotle's Organon, Topics and Rhetoric. Epicurus The Principal Doctrines (Kyriai Doxai) are the main beliefs of the Epicurean school of Hellenistic philosophy, and constitute Epicurean orthodoxy. They are believed to be the authoritative conclusions arrived at by Epicurus, Metrodorus, and their close companions during the early years of the formation of the school, which were compiled into an epitome for the benefit of their disciples. Contemporary interpretations In sociology and anthropology (Bourdieu) Pierre Bourdieu, in his Outline of a Theory of Practice (1972), used the term doxa to denote a society's taken-for-granted, unquestioned truths. In comparison, opinion is the sphere of that which may be openly contested and discussed. Bourdieu believes that doxa derives from socialization, as socialization also deals with beliefs that derive from society; as we grow up in the environment, we