Latin: ''Opus nonaginta dierum''. The ''Work of Ninety Days'' was Ockham’s first major work in his twenty-year campaign against Pope John XXII. It is a critical commentary on the Pope’s work ''Quia vir reprobus''. It includes a discussion of the place of voluntary poverty in religious life, the place of property in civil life, and its relation to natural rights and human law. "Ockham dissects with remorseless logic and barely concealed moral outrage an edict of Pope John XXII that had condemned Michael of Cesena, head of the Franciscan Order for daring to defend the traditional Franciscan position that property could be used without being owned. "<ref>[http://www.britac.ac.uk/pubs/dialogus/wock.html]</ref>
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Work of Ninety Days Vol. 1 This was Ockham’s first major work in a twenty-year campaign against Pope John XXII. It is a critical commentary on the Pope’s document ''Quia vir reprobus''. It includes a thorough discussion of the place of voluntary poverty in religious life, the place of property in civil life, and its relation to natural rights and human law. "Ockham dissects with remorseless logic and barely concealed moral outrage an edict of Pope John XXII that had condemned [[Michael of Cesena]], head of the Franciscan Order for daring to defend the traditional Franciscan position that property could be used without being owned. "
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ISBN10: 0-7734-7528-1 ISBN13: 978-0-7734-7528-1 Pages: 496 Year: 2001 A Translation of William of Ockham’s Work of Ninety Days Vol. 1 Kilcullen, John. Edwin Mellen Press 2001