of doctrines’ (1983:97). Another function of doctrine is to relate myths and traditions to the present day and the new knowledge that is discovered almost daily. The fourth function of doctrine is to stimulate a new vision of the world. Is it improving or degenerating? Is it permanent or transitory? The doctrines have a practical meaning, as well as a theoretical one, providing a vision or way of looking at things, which can inspire us to act or think in a certain way. The fifth function of doctrine
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