Belief of religious thought, "belief-that" instead belonged to epistemological considerations. To "believe in" someone or something is a distinct concept from "believing-that." There are at least these types of belief-in: Economic beliefs are beliefs which are reasonably and necessarily contrary to the tenet of rational choice or instrumental rationality. Studies of the Austrian tradition of the economic thought, in the context of analysis of the influence and subsequent degree of change resulting from existing economic knowledge and belief, has contributed the most to the subsequent holistic collective analysis. Insofar as the truth of belief is expressed in sentential and propositional form
Principle of plenitude Principle of plenitude The principle of plenitude asserts that the universe contains all possible forms of existence. The historian of ideas Arthur Lovejoy was the first to trace the history of this philosophically important principle explicitly. Lovejoy distinguishes two versions of the principle: a static version, in which the universe displays a constant fullness and diversity, and a temporalized version, in which fullness and diversity gradually increase over time. Lovejoy traces the principle of plenitude to the writings of Plato, finding in the "Timaeus" an insistence on "the necessarily complete translation of all the ideal possibilities into actuality". By contrast,