 This introduction set a precedent for secular works to be composed in the vernacular, while sacred texts would remain in Church-Slavonic.However, his work was often incredibly theoretical and scholarly, focused on promoting the versification of the language with which he spoke.While Trediakovsky's approach to writing is often described as highly erudite, the young writer and scholarly rival to Trediakovsky, Alexander Petrovich Sumarokov, 1717–1777, was dedicated to the styles of French classicism.