The contemporaries of Boetius regarded him as a man of profound learning. Priscian the grammarian speaks of him as having attained the summit of honesty and of all sciences. Cassiodorus, magister officiorum under Theodoric and the intimate acquaintance of the philosopher, employs language equally strong, and Ennodius, the bishop of Pavia, knows no bounds for his admiration. Theodoric had a profound respect for his scientific abilities. He employed him in setting right the coinage. When he visited Rome with Gunibald, king of the Burgundians, he took him to Boetius, who showed them, amongst other mechanical contrivances, a sun-dial and a water-clock. The foreign monarch was astonished, and, at the request of Theodoric, Boetius had to prepare others of a similar nature, which were sent as presents to Gunibald.
The fame of Boetius increased after his death, and his influence during the middle ages was exceedingly powerful. His circumstances peculiarly favoured this influence. He appeared at a time when contempt for intellectual pursuits had begun to pervade society. In his early years he was seized with a passionate enthusiasm for Greek literature, and this continued through life. Even amidst the cares of the consulship he found time for commenting on the Categories of Aristotle. The idea laid hold of him of reviving the spirit of his countrymen by imbuing them with the thoughts of the great Greek writers. He formed the resolution to translate all the works of Aristotle and all the dialogues of Plato, and to reconcile the philosophy of Plato with that of Aristotle. He did not succeed in all that he designed; but he did a great part of his work. He translated into Latin Aristotle’s Analytica Priora et Posteriora, the Topica, and Elenchi Sophistici; and he wrote commentaries on Aristotle’s Categories, on his book περὶ ἑρμηνείας, also a commentary on the Isagoge of Porphyrius. These works formed to a large extent the source from which the middle ages derived their knowledge of Aristotle. (See Stahr, Aristoteles bei den Römern, pp. 196-234.) Boetius wrote also a commentary on the Topica of Cicero; and he was also the author of independent works on logic:—Introductio ad Categoricos Syllogismos, in one book; De Syllogismis Categoricis, in two books; De Syllogismis Hypotheticis, in two books; De Divisione, in one book; De Definitione, in one book; De Differentiis Topicis, in four books.
We see from a statement of Cassiodorus that he furnished manuals for the quadrivium of the schools of the middle ages (the “quattuor matheseos disciplinae,” as Boetius calls them) on arithmetic, music, geometry and astronomy. The statement of Cassiodorus that he translated Nicomachus is rhetorical. Boetius himself tells us in his preface addressed to his father-in-law Symmachus that he had taken liberties with the text of Nicomachus, that he had abridged the work when necessary, and that he had introduced formulae and diagrams of his own where he thought them useful for bringing out the meaning. His work on music also is not a translation from Pythagoras, who left no writing behind him. But Boetius belonged to the school of musical writers who based their science on the method of Pythagoras. They thought that it was not sufficient to trust to the ear alone, to determine the principles of music, as did practical musicians like Aristoxenus, but that along with the ear, physical experiments should be employed. The work of Boetius is in five books and is a very complete exposition of the subject. It long remained a text-book of music in the universities of Oxford and Cambridge. It is still very valuable as a help in ascertaining the principles of ancient music, and gives us the opinions of some of the best ancient writers on the art. The manuscripts of the geometry of Boetius differ widely from each other. One editor, Godofredus Friedlein, thinks that there are only two manuscripts which can at all lay claim to contain the work of Boetius. He published the Ars Geometriae, in two books, as given in these manuscripts; but critics are generally inclined to doubt the genuineness even of these. Professor Rand, Georgius Ernst and A. P. McKinlay regard the Ars as certainly inauthentic, while they accept the Interpretatio Euclidis (see works quoted in bibliography).
By far the most important and most famous of the works of Boetius is his book De Consolatione Philosophiae. Gibbon justly describes it as “a golden volume, not unworthy of the leisure of Plato or Tully, but which claims incomparable merit from the barbarism of the times and the situation of the author.” The high reputation it had in medieval times is attested by the numerous translations, commentaries and imitations of it which then appeared. Among others Asser, the instructor of Alfred the Great, and Robert Grosseteste, bishop of Lincoln, commented on it. Alfred translated it into Anglo-Saxon. Versions of it appeared in German, French, Italian, Spanish and Greek before the end of the 15th century. Chaucer translated it into English prose before the year 1382; and this translation was published by Caxton at Westminster, 1480. Lydgate followed in the wake of Chaucer. It is said that, after the invention of printing, amongst others Queen Elizabeth translated it, and that the work was well known to Shakespeare. It was the basis of the earliest specimen of Provençal literature.
This famous work consists of five books. Its form is peculiar, and is an imitation of a similar work by Marcianus Capella, De Nuptiis Philologiae et Mercurii. It is alternately in prose and verse. The verse shows great facility of metrical composition, but a considerable portion of it is transferred from the tragedies of Seneca. The first book opens with a few verses, in which Boetius describes how his sorrows had brought him to a premature old age. As he is thus lamenting, a woman appears to him of dignified mien, whom he recognizes as his guardian, Philosophy. She, resolving to apply the remedy for his grief, questions him for that purpose. She finds that he believes that God rules the world, but does not know what he himself is; and this absence of self-knowledge is the cause of his weakness. In the second book Philosophy presents to Boetius Fortune, who is made to state to him the blessings he has enjoyed, and after that proceeds to discuss with him the kind of blessings that fortune can bestow, which are shown to be unsatisfactory and uncertain. In the third book Philosophy promises to lead him to true happiness, which is to be found in God alone, for since God is the highest good, and the highest good is true happiness, God is true happiness. Nor can real evil exist, for since God is all-powerful, and since he does not wish evil, evil must be non-existent. In the fourth book Boetius raises the question, Why, if the governor of the universe is good, do evils exist, and why is virtue often punished and vice rewarded? Philosophy proceeds to show that in fact vice is never unpunished nor virtue unrewarded. From this Philosophy passes into a discussion in regard to the nature of providence and fate, and shows that every fortune is good. The fifth and last book takes up the question of man’s free will and God’s foreknowledge, and, by an exposition of the nature of God, attempts to show that these doctrines are not subversive of each other; and the conclusion is drawn that God remains a foreknowing spectator of all events, and the ever-present eternity of his vision agrees with the future quality of our actions, dispensing rewards to the good and punishments to the wicked.
Several theological works have been ascribed to Boetius, as has been already mentioned. The Consolatio affords conclusive proof that the author was not a practical believer in Christianity. The book contains expressions such as daemones, angelica virtus, and purgatoria dementia, which have been thought to be derived from the Christian faith; but they are used in a heathen sense, and are explained sufficiently by the circumstance that Boetius was on intimate terms with Christians. The writer nowhere finds consolation in any Christian belief, and Christ is never named in the work. It is not impossible, however, that Boetius may have been brought up a Christian, and that in his early years he may have written some Christian books. Peiper thinks that the first three treatises are the productions of the early years of Boetius. The first, De Sancta Trinitate, is addressed to Symmachus (Domino Patri Symmacho), and the result of the short discussion, which is of an abstract nature, and deals partly with the ten categories, is that unity is predicated absolutely, or, in regard to the substance of the Deity, trinity is predicated relatively. The second treatise is addressed to John the deacon (“Ad Joannem Diaconum”), and its subject is “Utrum Pater et Filius et Spiritus Sanctus de divinitate substantialiter praedicentur.” This treatise is shorter than the first, occupying only two or three pages, and the conclusion of the argument is the same. The third treatise bears the title, Quomodo substantiae in eo quod sint bonae sint cum non sint substantialia bona. It contains nothing distinctly Christian, and it contains nothing of great value; therefore its authorship is a matter of little consequence. Peiper thinks that, as the best MSS. uniformly assign these treatises to Boetius, they are to be regarded as his; that it is probable that Symmachus and John (who afterwards became Pope) were the men of highest distinction who took charge of him when he lost his father; and that these treatises are the first-fruits of his studies, which he dedicates to his guardians and benefactors. He thinks that the variations in the inscriptions of the fifth treatise which is not found in the best manuscript, are so great that the name of Boetius could