Pope Leo XIII
 
Author of the St. Michael Prayer, Leo the 13th is the 256th Pope of Christ's Church. 
 
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"The Rosary is the most excellent form of prayer and the most efficacious means of attaining eternal life. It is the remedy for all our evils, the root of all our blessings. There is no more excellent way of praying."
 
"Peace is built on the foundation of justice."
 
"The death sentence is a necessary and efficacious means for the Church to attain its end when rebels act against it and disturbers of the ecclesiastical unity, especially obstinate heretics and heresiarchs, cannot be restrained by any other penalty from continuing to derange the ecclesiastical order and impelling others to all sorts of crime ... When the perversity of one or several is calculated to bring about the ruin of many of its children it is bound effectively to remove it, in such wise that if there be no other remedy for saving its people it can and must put these wicked men to death."
 
"God is not only true, but Truth itself."
 
"Once the demands of necessity and propriety have been met, the rest that one owns belongs to the poor."
 
"No human law can abolish the natural and original right of marriage, nor in any way limit the chief and principal purpose of marriage ordained by God’s authority from the beginning: “Increase and multiply."
 
"Remember and understand well that where Peter is, there is the Church; that those who refuse to associate in communion with the Chair of Peter belong to Antichrist, not to Christ. He who would separate himself from the Roman Pontiff has no further bond with Christ."
 
"All Catholics must make themselves felt as active elements in daily political life in the countries where they live. They must penetrate, wherever possible, in the administration of civil affairs; must constantly exert the utmost vigilance and energy to prevent the usages of liberty from going beyond the limits fixed by God's law. All Catholics should do all in their power to cause the constitutions of states and legislation to be modeled on the principles of the true Church."