O Virgin most holy, none abounds in the knowledge of God except through thee; none, O Mother of God, obtains salvation except through thee, none receives a gift from the throne of mercy except through thee.
Pope Leo XIIIThe fact that God gave the whole human race the earth to use and enjoy cannot indeed in any manner serve as an objection against private possessions.
Pope Leo XIIIInadequacy of his own strength, learned from experience, impels and urges a man to enlist the help of others.
Pope Leo XIIIThe sacred rites, although not instituted specifically for proving the truth of the dogmas of the Catholic Faith incontrovertibly, are effectively the living voice of Catholic Truth, the oft-sounded expression of it. For that very reason the true Church of Christ, even as she shows great zeal to guard inviolate those forms of divine worship - since they are hallowed and are not to be changed - sometimes grants or permits something novel in the performance of them in certain instances. This she does especially when they are in conformity with their venerable antiquity.
Pope Leo XIII