THE lives of the principal martyrs, fathers, and other more illustrious saints, whose memory is revered in the Catholic church, are here presented to the public. An undertaking of this kind seems not to stand in need of an apology. For such are the advantages and so great the charms of history, that, on every subject, and whatever dress it wears, it always pleases and finds readers. So instructive it is, that it is styled by Cicero, "The mistress of life,"[1] and is called by others, "Moral philosophy exemplified in the lives and actions of mankind."[2] But, of all the parts of history, biography, which describes the lives of great men, seems both the most entertaining, and the most instructive and improving. By a judicious choice and detail of their particular actions, it sets before our eyes a living image of those heroes who have been the object of the admiration of past ages; it exhibits to us a portraiture of their interior virtues and spirit, and gives the most useful and enlarged view of human nature. From the wise maxims, experience, and even mistakes of great men, we learn the most refined lessons of prudence, and are furnished with models for our imitation. Neither is the narration here interrupted, nor the attention of the reader hurried from one object to another, as frequently happens in general history. On these and other accounts are the lives of eminent personages the most agreeable and valuable part of history. But, in the lives of the saints, other great advantages occur. Here are incidentally related the triumphs of the church, the trophies of the most exalted virtue, and the conversion of nations. What are profane histories better than records of scandals? What are the boasted triumphs of an Alexander or a Caesar but a series of successful plunders, murders, and other crimes? It was the remark of the historian Socrates, that if princes were all lovers of peace and fathers of their people, and if the lives of men were a uniform and steady practice of piety, civil history would be almost reduced to empty dates. This reflection extorted from the pen of a famous wit of our age, in his history of the empire of the West since Charlemagne, the following confession: "This history is scarcely any more than a vast scene of weaknesses, faults, crimes, and misfortunes; among which we find some virtues, and some successful exploits, as fertile valleys are often seen among chains of rocks and precipices. This is likewise the case with other histories."[3] But the lives of the saints are the history of the most exemplary and perfect virtue and prowess. While therefore all other branches of history employ daily so many pens, shall this, which above all others deserves our attention, be alone forgotten? While every other part of the soil is daily raked up, shall the finest spot be left uncultivated? Our antiquaries must think themselves obliged by this essay, as the greatest