[...] Metaphysical truth is eternal; even so, there have always existed beings who could truly and completely know. All that changes is only exterior forms and contingent means; and the change has nothing to do with what people today call evolution. It is only a simple adaptation of such and such particular circumstances to special conditions of some given race or epoch. From this results the multiplicity of forms; but the basis of the doctrine is no more modified and affected than the essential unity and identity of the being is altered by the multiplicity of its states of manifestation. [MetaOrient]