Dogma in the broad sense is any belief held unquestioningly and with undefended certainty. It may be in the form of an official system of principles or doctrines of a religion, such as Roman Catholicism, Judaism, or Protestantism, as well as the positions of a philosopher or of a philosophical school such as Stoicism. It may also be found in political belief systems, such as communism, progressivism, liberalism, and conservatism. In the pejorative sense, dogma refers to enforced decisions, such as those of aggressive political interests or authorities. More generally, it is applied to some strong belief which its adherents are not willing to discuss rationally. This attitude is named as a dogmatic one, or as dogmatism, and is often used to refer to matters related to religion, but is not limited to theistic attitudes alone and is often used with respect to political or philosophical dogmas. Etymology The word dogma was adopted in the 17th century from , derived from the from the . The plural is based on the , though dogmas may be more commonly used in English. In philosophy Pyrrhonism In Pyrrhonism, "dogma" refers to assent to a proposition about a non-evident matter. The main principle of Pyrrhonism is expressed by the word acatalepsia, which connotes the ability to withhold assent from doctrines regarding the truth of things in their own nature; against every statement its contradiction may be advanced with equal justification. Consequently, Pyrrhonists withhold assent with regard to non-evident propositions, i.e., dogmas. Pyrrhonists argue that dogmatists, such as the Stoics, Epicureans, and Peripatetics, have failed to demonstrate that their doctrines regarding non-evident matters are true. In religion Christianity In Christianity, a dogma is a belief communicated by divine revelation and defined by the Church, The organization's formal religious positions may be taught to new members or simply communicated to those who choose to become members. It is rare for agreement with an organization's formal positions to be a requirement for attendance, though membership may be required for some church activities. In the narrower sense of the church's official interpretation of divine revelation, theologians distinguish between defined and non-defined dogmas, the former being those set out by authoritative bodies such as the Roman Curia for the Catholic Church, the latter being those which are universally held but have not been officially defined, the nature of Christ as universal redeemer being an example. The term originated