RT Article T1 "Sacred and inviolable": Rerum novarum and natural rights JF Theological studies VO 53 SP 203 OP 233 A1 Fortin, Ernest L. 1923-2002 LA English PB Sage Publ. YR 1992 UL https://ixtheo.de/Record/596491239 K1 Leo XIII K1 Enzyklika K1 Gesellschaftsmodell K1 Christentum K1 Naturrecht K1 Encyclical K1 Social System K1 Christianity K1 Natural Law