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The Russian Church And The Papacy
"Vladimir Soloviev's true legacy consists of three simple propositions. Jesus Christ instituted the universal jurisdiction and infallible teaching authority of the Papacy as a perpetual gift to His Church Apart from the Papacy, the Eastern churches will always remain what they are now: ethnic, national churches, totally independent and disunited Only in union with Rome can the separated Eastern churches become truly Catholic Seldom, if ever, has this Catholic doctrine of the Church been stated more eloquently, more persuasively in an apologetic context than by Vladimir Soloviev. It is for this very reason that Catholic Answers felt it necessary to bring The Russian Church and the Papacy back into print, and recover this valuable resource for generations to come."
"The gravest obligation requires the acceptance and practice, not of the religion which one may choose, but of that which God prescribes and which is known by certain and indubitable marks to be the only true one."
~ Leo XIII in his Encyclical Immortale Dei (November 1, 1885); on our fundamenal duty; (from the article Religious Toleration)