To Our Venerable Brethren, the Patriarchs, Primates, Archbishops, Bishops and other Ordinaries in Grace and Communion with the Apostolic See.

Venerable Brethren, Greeting and the Apostolic Benediction.

1. In a recent apostolic letter confirming the statutes of Canon Law, We declared that the guide to be followed in the higher studies by young men training for the priesthood was Thomas Aquinas. The approaching anniversary of the day when he was duly enrolled, six hundred years ago, in the calendar of the Saints, offers Us an admirable opportunity of inculcating this more and more firmly in the minds of Our students and explaining to them what advantage they may most usefully derive from the teaching of so illustrious a Doctor. For science truly deserving of the name and piety, the companion of all the virtues, are related in a marvelous bond of affinity, and, as God is very Truth and very Goodness, it would assuredly not be sufficient to procure the glory of God by the salvation of souls-the chief task and peculiar mission of the Church-if ministers of religion were well disciplined in knowledge and not also abundantly provided at the same time with the appropriate virtues.

2. Such a combination of doctrine and piety, of erudition and virtue, of truth and charity, is to be found in an eminent degree in the angelic Doctor and it is not without reason that he has been given the sun for a device; for he both brings the light of learning into the minds of men and fires their hearts and wills with the virtues. God, the Source of all sanctity and wisdom would, therefore, seem to have desired to show in the case of Thomas how each of these qualities assists the other, how the practice of the virtues disposes to the contemplation of truth, and the profound consideration of truth in turn gives luster and perfection to the virtues. For the man of pure and upright life, whose passions are controlled by virtue, is delivered as it were of a heavy burden and can much more easily raise his mind to heavenly things and penetrate more profoundly into the secrets of God, according to the maxim of Thomas himself: "Life comes before learning: for life leads to the knowledge of truth" (Comment. in Matth., v); and if such a man devotes himself to the investigation of the supernatural, he will find a powerful incentive in such a pursuit to lead a perfect life; for the learning of such sublime things, the beauty of which is a ravishing ecstasy, so far from being a solitary or sterile occupation, must be said to be on the contrary most practical.

3. These are among the first lessons, Venerable Brethren, which may be learned from the commemoration of this centenary; but that they may be the more clearly apparent, We propose to comment briefly in this Letter on the sanctity and doctrine of Thomas Aquinas and to show what profitable instruction may be derived therefrom by priests, by seminarians especially, and, not least, by all Christian people.

4. Thomas possessed all the moral virtues to a very high degree and so closely bound together that, as he himself insists should be the case, they formed one whole in charity "which informs the acts of all the virtues" (II-II, xxiii, 8; I-II, Ixv). If, however, we seek to discover the peculiar and specific characteristics of his sanctity, there occurs to Us in the first place that virtue which gives Thomas a certain likeness to the angelic natures, and that is chastity; he preserved it unsullied in a crisis of the most pressing danger and was therefore considered worthy to be surrounded by the angels with a mystic girdle.

This perfect regard for purity was accompanied at the same time by an equal aversion for fleeting possessions and a contempt for honors; it is recorded that his firmness of purpose overcame the obstinate persistence of relatives who strove their utmost to induce him to accept a lucrative situation in the world and that later, when the Supreme Pontiff would have offered him a mitre, his prayers were successful in securing that such a dread burden should not be laid upon him. The most distinctive feature, however, of the sanctity of Thomas is what St. Paul describes as the "word of wisdom" (I Cor. xii, 8) and that combination of the two forms of wisdom, the acquired and the infused, as they are termed, with which nothing accords so well as humility, devotion to prayer, and the love of God.

5. That humility was the foundation upon which the other virtues of Thomas were based is clear to anyone who considers how submissively he obeyed a lay brother in the course of their communal life; and it is no less patent to anyone reading his writings which manifest such respect for the Fathers of the Church that "because he had the utmost reverence for the doctors of antiquity, he seems to have inherited in a way the intellect of all" (Leo XIII, ex Card. Caietano, litt. Encycl. Aeterni Patris, 4th August, 1879); but the most magnificent illustration of it is to be found in the fact that he devoted the faculties of his divine intellect not in the least to gain glory for himself, but to the advancement of truth. Most philosophers as a rule are eager to establish their own reputations, but Thomas strove to efface himself completely in the teaching of his philosophy so that the light of heavenly truth might shine with its own effulgence.

6. This humility, therefore, combined with the purity of heart We have mentioned, and sedulous devotion to prayer, disposed the mind of Thomas to docility in receiving the inspirations of the Holy Ghost and following His illuminations, which are the first principles of contemplation. To obtain them from above, he would frequently fast, spend whole nights in prayer, lean his head in the fervor of his unaffected piety against the tabernacle containing the august Sacrament, constantly turn his eyes and mind in sorrow to the image of the crucified Jesus; and he confessed to his intimate friend St. Bonaventura that it was from that Book especially that he derived all his learning. It may, therefore, be truly said of Thomas what is commonly reported of St. Dominic, Father and Lawgiver, that in his conversation he never spoke but about God or with God.

7. But as he was accustomed to contemplate all things in God, the first Cause and ultimate End of all things, it was easy for him to follow in his Summa Theologica no less than in his life the two kinds of wisdom before referred to. He himself describes them as follows: "The wisdom which is acquired by human effort . . . gives a man a sound judgment with regard to divine things according as he makes a perfect use of reason. . . But there is another kind of wisdom which comes down from above . . . and judges divine things in virtue of a certain connaturality with them. This wisdom is the gift of the Holy Ghost . . . and through it a man becomes perfect in divine things, not only by learning but also by experiencing divine things" (II-II, xlv, 1, ad 2; 2).

8. This wisdom, therefore, which comes down from, or is infused by, God, accompanied by the other gifts of the Holy Ghost, continually grew and increased in Thomas, along with charity, the mistress and queen of all the virtues. Indeed it was an absolutely certain doctrine of his that the love of God should ever continually increase "in accordance with the very words of the commandment: 'Thou shalt love the Lord, thy God, with thy whole heart'; for the whole and the perfect are one same thing. . .

Now the end of the commandment is charity from a pure heart, and a good conscience and an unfeigned faith, as the Apostle says (I Tim. i, 5), but no standard of measure is applicable to the end, but only to such things as conduce to the end (II-II, clxxxiv, 3)." This is the very reason why the perfection of charity falls under the commandment as the end to which we ought all to strive, each according to his degree. Moreover, as "it is the characteristic of charity to make man tend to God by uniting the affections of man to God in such a way that man ceases to live for himself and lives only for God" (II-II, xvii, 6, ad 3), so the love of God, continually increasing in Thomas along with that double wisdom, induced in him in the end such absolute forgetfulness of self that when Jesus spoke to him from the cross, saying: "Thomas, thou hast written well about me," and asked him: "What reward shall I give thee for all thy labor?" the saint made answer: "None but Thyself, O Lord!" Instinct with charity, therefore, he unceasingly continued to serve the convenience of others, not counting the cost, by writing admirable books, helping his brethren in their labors, depriving himself of his own garments to give them to the poor, even restoring the sick to health as, for example, when preaching in the Vatican Basilica on the occasion of the Easter celebrations, he suddenly cured a woman who had touched the hem of his habit of a chronic hemorrhage.

9. In what other Doctor was this "word of wisdom" mentioned by St. Paul more remarkable and abundant than in the Angelic Doctor? He was not satisfied with enlightening the minds of men by his teaching: he exerted himself strenuously to rouse their hearts to make a return of His love to God, the Creator of all things. "The love of God is the source and origin of goodness in things" he magnificently declares (1, xx, 2), and he ceaselessly illustrates this diffusion of the divine goodness in his discussion of every several mystery. "Hence it is of the nature of perfect good to communicate itself in a perfect way and this is done in a supreme degree by God . . . in the Incarnation" (III, i, I). Nothing, however, shows the force of his genius and charity so clearly as the Office which he himself composed for the august Sacrament. The words he uttered on his deathbed, as he was about to receive the holy Viaticum, are the measure of his devotion to that Sacrament throughout his life: "I receive Thee, Price of the redemption of my soul, for the love of Whom I have studied, kept vigil and toiled."

10. After this slight sketch of the great virtues of Thomas, it is easy to understand the preeminence of his doctrine and the marvelous authority it enjoys in the Church. Our Predecessors, indeed, have always unanimously extolled it. Even during the lifetime of the saint, Alexander IV had no hesitation in addressing him in these terms: "To Our beloved son, Thomas Aquinas, distinguished alike for nobility of blood and integrity of character, who has acquired by the grace of God the treasure of divine and human learning." After his death, again, John XXII seemed to consecrate both his virtues and his doctrine when, addressing the Cardinals, he uttered in full Consistory the memorable sentence: "He alone enlightened the Church more than all other doctors; a man can derive more profit in a year from his books than from pondering all his life the teaching of others."

11. He enjoyed a more than human reputation for intellect and learning and Pius V was therefore moved to enroll him officially among the holy Doctors with the title of Angelic. Again, could there be any more manifest indication of the very high esteem in which this Doctor is held by the Church than the fact that the Fathers of Trent resolved that two volumes only, Holy Scripture and the Summa Theologica, should be reverently laid open on the altar during their deliberations? And in this order of ideas, to avoid recapitulating the innumerable testimonies of the Apostolic See, We are happy to recall that the philosophy of Aquinas was revived by the authority and at the instance of Leo XIII; the merit of Our illustrious Predecessor in so doing is such, as We have said elsewhere, that if he had not been the author of many acts and decrees of surpassing wisdom, this alone would be sufficient to establish his undying glory. Pope Pius X of saintly memory followed shortly afterwards in his footsteps, more particularly in his Motu Proprio Doctoris Angelici, in which this memorable phrase occurs: "For ever since the happy death of the Doctor, the Church has not held a single Council but he has been present at it with all the wealth of his doctrine." Closer to Us, Our greatly regretted Predecessor Benedict XV repeatedly declared that he was entirely of the same opinion and he is to be praised for having promulgated the Code of Canon Law in which "the system, philosophy and principles of the Angelic Doctor" are unreservedly sanctioned. We so heartily approve the magnificent tribute of praise bestowed upon this most divine genius that We consider that Thomas should be called not only the Angelic, but also the Common or Universal Doctor of the Church; for the Church has adopted his philosophy for her own, as innumerable documents of every kind attest. It would be an endless task to explain here all the reasons which moved Our Predecessors in this respect, and it will be sufficient perhaps to point out that Thomas wrote under the inspiration of the supernatural spirit which animated his life and that his writings, which contain the principles of, and the laws governing, all sacred studies, must be said to possess a universal character.

12. In dealing orally or in writing with divine things, he provides theologians with a striking example of the intimate connection which should exist between the spiritual and the intellectual life. For just as a man cannot really be said to know some distant country, if his acquaintance is confined merely to a description of it, however accurate, but must have dwelt in it for some time; so nobody can attain to an intimate knowledge of God by mere scientific investigation, unless he also dwells in the most intimate association with God. The aim of the whole theology of St. Thomas is to bring us into close living intimacy with God. For even as in his childhood at Monte Cassino he unceasingly put the question: "What is God?"; so all the books he wrote concerning the creation of the world, the nature of man, laws, the virtues, and the sacraments, are all concerned with God, the Author of eternal salvation.

13. Again, discussing the causes of the sterility of such studies, namely curiosity, that is to say the unbridled desire for knowledge, indolence of mind, aversion from effort and lack of perseverance, he insists that there is no other remedy than zeal in work with the fervor of piety which derives from the life of the spirit. Sacred studies, therefore, being directed by a triple light, undeviating reason, infused faith and the gifts of the Holy Ghost, by which the mind is brought to perfection, no one ever was more generously endowed with these than Our Saint. After spending all the riches of his intellect on some matter of exceptional difficulty, he would seek the solution of his problem from God by the most humble prayer and fasting; and God was wont to listen to His suppliant so kindly that He dispatched the Princes of the Apostles at times to instruct him. It is not therefore surprising that towards the end of his life he had risen to such a degree of contemplation as to declare that all he had written seemed to him mere chaff and that he was incapable of dictating another word; his eyes even then were fixed on eternity alone, his one desire was to see God. For, according to Thomas, by far the most important benefit to be derived from sacred studies, is that they inspire a man with a great love for God and a great longing for eternal things.

14. He not only instructs us by his example how to pursue such a diversity of studies, but also teaches us firm and enduring principles of each single science. For, in the first place, who has provided a better explanation than he of the nature and character of philosophy, its various divisions and the relative importance of each? Consider how clearly he demonstrates the congruence and harmony between all the various sections which go to make up the body as it were of this science. "It is the function of the wise man," he declares, "to put things in order, because wisdom is primarily the perfection of reason and it is the characteristic of reason to know order; for although the sensitive faculties know some things absolutely, only the intellect or reason can know the relation one thing bears to another. The sciences, therefore, vary according to the various forms of order which reason perceives to be peculiar to each. The order which the consideration of reason establishes in its own peculiar activity pertains to rational philosophy or logic, whose function is to consider the order of the parts of speech in their mutual relations and in relation to the conclusions which may be drawn from them. It is for natural philosophy or physics to consider the order in things which human reason considers but does not itself institute, so that under natural philosophy we include also metaphysics. But the order of voluntary acts is for the consideration of moral philosophy which is divided into three sections: the first considers the activities of the individual man in relation to their end and is called 'monastics'; the second considers the activities of the family group or community and is called economics; the third considers the activities of the State and is called politics" (Ethics, I, I). Thomas dealt thoroughly with all these several divisions of philosophy, each according to its appropriate method, and, beginning with things nearest to our human reason, rose step by step to things more remote until he stood in the end on "the topmost peak of all things" (Contra Gentes, II, lvi; IV, i).

15. His teaching with regard to the power or value of the human mind is irrefragable.

"The human mind has a natural knowledge of being and the things which are in themselves part of being as such, and this knowledge is the foundation of our knowledge of first principles" (Contra Gentes, II, 1xxxiii). Such a doctrine goes to the root of the errors and opinions of those modern philosophers who maintain that it is not being itself which is perceived in the act of intellection, but some modification of the percipient; the logical consequence of such errors is agnosticism, which was so vigorously condemned in the Encyclical Pascendi.

16. The arguments adduced by St. Thomas to prove the existence of God and that God alone is subsisting Being Itself are still today, as they were in the Middle Ages, the most cogent of all arguments and clearly confirm that dogma of the Church which was solemnly proclaimed at the Vatican Council and succinctly expressed by Pius X as follows: "The certain knowledge of God as the first principle of creation and its end and demonstrable proof of His existence can be inferred, like the knowledge of a cause from its effect, by the light of the natural reason, from creation, that is to say the visible works of creation" (Motu Proprio Sacrorum Antistitum of the 1st September, 1910).

The metaphysical philosophy of St. Thomas, although exposed to this day to the bitter onslaughts of prejudiced critics, yet still retains, like gold which no acid can dissolve, its full force and splendor unimpaired. Our Predecessor therefore rightly observed: "To deviate from Aquinas, in metaphysics especially, is to run grave risk" (Encycl.Pascendi of the 8th September, 1907).

17. Philosophy is undoubtedly a most noble science, but as things are not constituted by divine Providence, it must not be said to excel all others, because it does not embrace the whole universality of things. Indeed, in the introduction to his Summa Contra Gentes, as also to his Summa Theologica, the saintly Doctor describes another order of things set above nature and eluding the grasp of reason, an order which man would never have suspected unless the divine goodness had revealed it to him. This is the region in which faith is supreme, and the science of faith is called Theology. Science of this kind will be all the more perfect in man in proportion as he is the better acquainted with the evidence for faith and has at the same time a more fully developed and trained faculty of philosophizing. There can be no doubt that Aquinas raised Theology to the highest eminence, for his knowledge of divine things was absolutely perfect and the power of his mind made him a marvelously capable philosopher. Thomas is therefore considered the Prince of teachers in our schools, not so much on account of his philosophical system as because of his theological studies. There is no branch of theology in which he did not exercise the incredible fecundity of his genius.

18. For in the first place he established apologetics on a sound and genuine basis by defining exactly the difference between the province of reason and the province of faith and carefully distinguishing the natural and the supernatural orders. When the sacred Vatican Council, therefore, in determining what natural knowledge of religion was possible, affirmed the relative necessity of some divine revelation for sure and certain knowledge and the absolute necessity of divine revelation for knowledge of the mysteries, it employed arguments which were borrowed precisely from St. Thomas. He insists that all who undertake to defend the Christian faith shall hold sacrosanct the principle that: "It is not mere folly to assent to the things of faith although they are beyond reason" (Contra Gentes, I, vi). He shows that, although the articles of belief are mysterious and obscure, the reasons which persuade us to believe are nevertheless clear and perspicuous, for, says he, "a man would not believe unless he saw that there were things to be believed" (II-II, i, 4); and he adds that, so far from being considered a hindrance or a servile yoke imposed upon men, faith should, on the contrary, be reckoned a very great blessing, because "faith in us is a sort of beginning of eternal life" (Qq. disp. de Veritate, xiv, 2).

19. The other branch of Theology, which is concerned with the interpretation of dogmas, also found in St. Thomas by far the richest of all commentators; for nobody ever more profoundly penetrated or expounded with greater subtlety all the august mysteries, as, for example, the intimate life of God, the obscurity of eternal predestination, the supernatural government of the world, the faculty granted to rational creatures of attaining their end, the redemption of the human race achieved by Jesus Christ and continued by the Church and the sacraments, both of which the Angelic Doctor describes as "relics, so to speak, of the divine Incarnation."

20. He also composed a substantial moral theology, capable of directing all human acts in accordance with the supernatural last end of man. And as he is, as We have said, the perfect theologian, so he gives infallible rules and precepts of life not only for individuals, but also for civil and domestic society which is the object also of moral science, both economic and politic. Hence those superb chapters in the second part of the Summa Theologica on paternal or domestic government, the lawful power of the State or the nation, natural and international law, peace and war, justice and property, laws and the obedience they command, the duty of helping individual citizens in their need and co-operating with all to secure the prosperity of the State, both in the natural and the supernatural order. If these precepts were religiously and inviolably observed in private life and public affairs, and in the duties of mutual obligation between nations, nothing else would be required to secure mankind that "peace of Christ in the Kingdom of Christ" which the world so ardently longs for. It is therefore to be wished that the teachings of Aquinas, more particularly his exposition of international law and the laws governing the mutual relations of peoples, became more and more studied, for it contains the foundations of a genuine "League of Nations."

21. His eminence in the learning of asceticism and mysticism is no less remarkable; for he brought the whole science of morals back to the theory of the virtues and gifts, and marvelously defined both the science and the theory in relation to the various conditions of men, both those who strive to attain Christian perfection and fullness of spirit, in the active no less than in the contemplative life. If anyone, therefore, desires to understand fully all the implications of the commandment to love God, the growth of charity and the conjoined gifts of the Holy Ghost, the differences between the various states of life, such as the state of perfection, the religious life and the apostolate, and the nature and value of each, all these and other articles of ascetical and mystical theology, he must have recourse in the first place to the Angelic Doctor.

22. Everything he wrote was securely based upon Holy Scripture and that was the foundation upon which he built. For as he was convinced that Scripture was entirely and in every particular the true word of God, he carefully submitted the interpretation of it to those very rules which Our recent Predecessors have sanctioned, Leo XIII in his Encyclical Providentissimus Deus and Benedict XV in his Encyclical Spiritus Paraclitus. He laid down the principle "The chief Author of Sacred Scripture is the Holy Ghost. . . But man was the instrumental author" (Quodlib., vii, 14, ad 5), and would not allow the absolute historicity of the Bible to be doubted; but on the basis of the meaning of the words or literal sense he established the fecundity and riches of the spiritual sense, the triple nature of which, allegorical, tropological and anagogical, he expounded with the most ingenious commentary.

23. Lastly, our Doctor possessed the exceptional and highly privileged gift of being able to convert his precepts into liturgical prayers and hymns and so became the poet and panegyrist of the Divine Eucharist. For wherever the Catholic Church is to be found in the world among whatsoever nations, there she zealously uses and ever will continue to use in her sacred services the hymns composed by St. Thomas. They are the expression of the ardent supplications of a soul in prayer and at the same time a perfect statement of the doctrine of the august Sacrament transmitted by the Apostles, which is pre-eminently described as the Mystery of Faith. If these considerations are borne in mind as well as the praise bestowed by Christ Himself to which We have already referred, nobody will be surprised that St. Thomas should also have received the title of the Doctor of the Eucharist.

24. The following very relevant conclusions may be drawn from all that has gone before. Let Our young men especially consider the example of St. Thomas and strive diligently to imitate the eminent virtues which adorn his character, his humility above all, which is the foundation of the spiritual life, and his chastity. Let them learn from this man of supreme intellect and consummate learning to abhor all pride of mind and to obtain by humble prayer a flood of divine light upon their studies; let them learn from his teaching to shun nothing so sedulously as the blandishments of sensual pleasure, so that they may bring the eyes of the mind undimmed to the contemplation of wisdom. For he confirmed by his precept, as We have said, his own practice in life: "To abstain from the pleasures of the Body so as to be certain of greater leisure and liberty for the contemplation of truth is to act in conformity with the dictates of reason" (II-II, clvii, 2).

Wherefore we are warned in Holy Scripture: ". . . wisdom will not enter into a malicious soul, nor dwell in a body subject to sins" (Wisdom, i, 4). If the purity of Thomas therefore had failed in the extreme peril into which, as we have seen, it had fallen, it is very probable that the Church would never have had her Angelic Doctor.

25. Inasmuch, therefore, as We see the majority of young men, caught in the quick-sands of passion, rapidly jettisoning holy purity and abandoning themselves to sensual pleasures, We instantly exhort you, Venerable Brethren, to propagate everywhere, and particularly among seminarians, the society of the Angelic Militia founded under the patronage of Thomas for the preservation and maintenance of holy chastity and We confirm the privileges of pontifical indulgences heaped upon it by Benedict XIII and others of Our Predecessors. And that the Faithful may be persuaded the more eagerly to enroll in this Militia, We grant members of it the privilege of wearing instead of a cord a medal round the neck impressed on the obverse with a picture of St. Thomas and the angels surrounding him with a girdle and on the reverse a picture of Our Lady, Queen of the Most Holy Rosary.

26. But inasmuch as St. Thomas has been duly proclaimed patron of all Catholic schools because he marvelously combined both forms of wisdom, the rational and the divinely inspired, because he had recourse to prayer and fasting to solve the most difficult problems, because he used the image of Christ crucified in place of all books, let him be a model also for seminarians, so that they may learn how to pursue their studies to the best advantage and with the greatest profit to themselves. Members of religious communities should look upon the life of St. Thomas as upon a mirror; he refused even the highest dignities offered to him in order to live in the practice of the most perfect obedience and to die in the sanctity of his profession. Let all the Faithful of Christ take the Angelic Doctor as a model of devotion to the august Queen of Heaven, for it was his custom often to repeat the "Hail Mary" and to inscribe the sweet Name upon his pages, and let them ask the Doctor of the Eucharist himself to inspire them with love for the divine Sacrament. Priests above all will be zealous in so doing, as is only proper.

"For Thomas was accustomed, unless prevented by illness, to say Mass daily and heard another Mass said by his socius or some other friar which he very often served," declares the careful historian of his life. But could anyone find words to express the spiritual fervor with which he said Mass himself, the anxious care with which he made his preparation, the thanksgivings he offered to the divine Majesty after he had said it?

27. Again, if we are to avoid the errors which are the source and fountain-head of all the miseries of our time, the teaching of Aquinas must be adhered to more religiously than ever. For Thomas refutes the theories propounded by Modernists in every sphere, in philosophy, by protecting, as We have reminded you, the force and power of the human mind and by demonstrating the existence of God by the most cogent arguments; in dogmatic theology, by distinguishing the supernatural from the natural order and explaining the reasons for belief and the dogmas themselves; in theology, by showing that the articles of faith are not based upon mere opinion but upon truth and therefore cannot possibly change; in exegesis, by transmitting the true conception of divine inspiration; in the science of morals, in sociology and law, by laying down sound principles of legal and social, commutative and distributive, justice and explaining the relations between justice and charity; in the theory of asceticism, by his precepts concerning the perfection of the Christian life and his confutation of the enemies of the religious orders in his own day. Lastly, against the much vaunted liberty of the human reason and its independence in regard to God he asserts the rights of primary Truth and the authority over us of the Supreme Master. It is therefore clear why Modernists are so amply justified in fearing no Doctor of the Church so much as Thomas Aquinas.

28. Accordingly, just as it was said to the Egyptians of old in time of famine: "Go to Joseph," so that they should receive a supply of corn from him to nourish their bodies, so We now say to all such as are desirous of the truth: "Go to Thomas," and ask him to give you from his ample store the food of substantial doctrine wherewith to nourish your souls unto eternal life. Evidence that such food is ready to hand and accessible to all men was given on oath at the hearing of the case for the canonization of Thomas himself, in the following words: "Innumerable secular and religious masters flourished under the lucid and limpid teaching of this Doctor, because his method was concise, clear and easily followed . . . even laymen and persons of little instruction are eager to possess his writings."

29. We desire those especially who are engaged in teaching the higher studies in seminaries sedulously to observe and inviolably to maintain the decrees of Our Predecessors, more particularly those of Leo XIII (the Encyclical Aeterni Patris), and Pius X (the Motu Proprio Doctoris Angelici) and the instructions We Ourselves issued last year. Let them be persuaded that they will discharge their duty and fulfill Our expectation when, after long and diligent perusal of his writings, they begin to feel an intense devotion for the Doctor Aquinas and by their exposition of him succeed in inspiring their pupils with like fervor and train them to kindle a similar zeal in others.

30. We desire that lovers of St. Thomas-and all sons of the Church who devote themselves to higher studies should be so-be incited by an honorable rivalry in a just and proper freedom which is the life-blood of studies, but let no spirit of malevolent disparagement prevail among them, for any such, so far from helping truth, serves only to loosen the bonds of charity. Let everyone therefore inviolably observe the prescription contained in the Code of Canon Law that "teachers shall deal with the studies of mental philosophy and theology and the education of their pupils in such sciences according to the method, doctrine and principles of the Angelic Doctor and religiously adhere thereto"; and may they conform to this rule so faithfully as to be able to describe him in very truth as their master. Let none require from another more than the Church, the mistress and mother of all, requires from each: and in questions, which in Catholic schools are matter of controversy between the most reputable authorities, let none be prevented from adhering to whatever opinion seems to him the more probable.

31. Therefore, as it behooves the whole of Christendom worthily to celebrate this centenary-because in honoring St. Thomas something greater is involved than the reputation of St. Thomas and that is the authority of the teaching Church-We desire that such celebration shall take place throughout the world from the 18th July until the end of next year wherever seminarians are in regular course of instruction, that is to say not only among the Preaching Friars, an Order which, in the words of Benedict XV, "must be praised, not so much for having been the family of the Angelic Doctor, as for having never afterwards departed so much as a hair's breadth from his teaching" (Acta Ap. Sedis, viii, 1916, p. 397), but among other religious communities also, and in all seminaries and Catholic colleges and schools to which he has been appointed for heavenly patron. It is only proper that this Eternal City in which Aquinas was once master of the Sacred Palace should take the lead in holding such celebrations and that the Pontifical Angelical College, where St. Thomas may be said to be at home, and the other academies in Rome for the education of priests set the example in these holy rejoicings.

32. In virtue of Our Apostolic power and for the purpose of increasing the splendor and profit to be derived from this celebration, We grant the following privileges:

1) That in all churches belonging to the Order of Preachers and in all other churches or chapels to which the public has or may have access, more particularly in seminaries, colleges or other institutions for the education of priests, prayers may be said for three or eight or nine days with the pontifical indulgences attaching to them which customarily attach to prayers said in honor of the saints and the blessed;

2) That in the churches of the Friars and the Sisters of St. Dominic the faithful may once on any day they choose in the course of the centenary celebrations, after duly confessing their sins and receiving Holy Communion, obtain a plenary indulgence toties quoties they pray before the altar of St. Thomas;

3) That in churches of the Order of St. Dominic, priests, members of the Order or tertiaries, may, in the course of the centenary year on any Wednesday or the first free day of the week, celebrate Mass in honor of St. Thomas, as on his feast-day, with or without the Gloria and the Credo, according to the ritual of the day, and obtain a plenary remission of sins; those present at any such Mass may also obtain a like indulgence on the usual conditions.

33. In addition, a disputation shall be held in seminaries and other institutions for the education of priests on some point of philosophy or other important branch of learning in honor of the Angelic Doctor. And that the festival of St. Thomas may be kept in future in a manner worthy of the patron of all Catholic schools, We order it to be kept as a holiday and celebrated not only with a High Mass, but also, at any rate in seminaries and among religious communities, by the holding-of a disputation as aforesaid.

34. Finally, that the studies to which Our young people devote themselves may, under the patronage of Aquinas, daily yield more and more fruit for the glory of God and the Church, We append to this Letter the form of prayer which the Saint himself was accustomed to use and exhort you to see that it be widely published. Let any person duly reciting it know that by Our authority an indulgence of seven years and seven quarantines is granted him.

35. As an augury of divine favor and in testimony of Our paternal benevolence, We most affectionately grant you, Venerable Brethren, and the clergy and people committed to your care the Apostolic Blessing.

Given at Rome at St. Peter's on the 29th day of June, the feast of the Princes of the Apostles, in the year 1923, the second year of Our Pontificate.

Prayer of St. Thomas

Ineffable Creator, Who out of the treasures of Thy wisdom hast appointed three hierarchies of Angels and set them in admirable order high above the heavens and hast disposed the divers portions of the universe in such marvelous array, Thou Who art called the True Source of Light and super-eminent Principle of Wisdom, be pleased to cast a beam of Thy radiance upon the darkness of my mind and dispel from me the double darkness of sin and ignorance in which I have been born.

Thou Who makest eloquent the tongues of little children, fashion my words and pour upon my lips the grace of Thy benediction. Grant me penetration to understand, capacity to retain, method and facility in study, subtlety in interpretation and abundant grace of expression.

Order the beginning, direct the progress and perfect the achievement of my work, Thou who art true God and Man and livest and reignest for ever and ever. Amen.