However, he was not a pan-Slav if this meant seeking the political unity of all Slav people under Russian leadership. He considered that the only possible role for the Tsar to 'correct' or unify the orthography and script used in Slav-language books and awaken Slav consciousness was through works conducive to education and logic. "In extremis" the South Slavs might join with the Russian tsar as a sovereign of the same language and people if the Catholic rulers supported his leadership in a war against the Ottomans.