_Note 3._ In all other cases, each and every Catholic, be he priest or layman, professor or student, must first obtain permission. Neither piety, nor learning, nor position exempts one from this law. The permission is granted by bishops and their vicars general, who can also delegate this power to others. When asking for this permission the applicant should mention the book which he thinks he has good reasons to read. The juridical question, whether the bishop’s faculty is _ordinaria_, or _quasi-ordinaria_, or _extra-ordinaria_, and how far it extends, is not within the scope of this Summary. _Note 4._ All who are dispensed from the Church law regarding forbidden books, must apply every possible precaution, in order that they may not suffer injury to their faith or purity of heart. Such precautions are: the hearing of sermons, the reading of Catholic books, the frequenting of Catholic society, regular prayers, and the frequent and humble reception of the sacraments. 2. Forbidden Books. RULE 4. General Rule.—Translations of a forbidden book into any language, if they faithfully reproduce the original, are also forbidden. A. The General Decrees Prohibit the Following Publications. RULE 5, a. Books defending heresies, i. e. doctrines contrary to divine revelation. b. Books derogatory to God, the Blessed Virgin, the Saints. c. Books vilifying the sacraments, the clerical or religious state, the hierarchy, the Church. RULE 6. Books professedly treating of, narrating or teaching lewdness and obscenity. RULE 7. Books teaching or recommending sorcery, Spiritism, Christian Science, or other superstitions. RULE 8. Books defending as lawful or harmless Freemasonry, divorce, Socialism, suicide, duelling. RULE 9. _Those newspapers and periodicals_ which, not only now and then, but regularly and of set purpose, attack religion or morality, or propagate anti-Catholic views. RULE 10. Episcopal approbation, to be printed in the beginning or at the end of the book, is required for all editions of the Bible or parts of the Bible in any language, likewise for all prayer books, books of devotion and of practical piety. Without episcopal authorization such publications are forbidden, though they may have been issued by the most learned and pious men. _Note 1._ Leaflets which are so small that they cannot be called books, or even booklets or pamphlets, do not fall under this law. But if they are not approved by the bishop, the duty of making sure that they contain nothing erroneous devolves upon those who use them. _Summaries of indulgences_, however, no matter how small, always need episcopal approbation and may not be circulated without it.