Yet only Dominicans believe that the Church adopted this law of individualization, or even assented to it. If M. Jourdain is right, Thomas was quickly obliged to give it another form:—that, though all souls belonged to the same species, they differed in their aptitudes for uniting with particular bodies. "This soul is commensurate with this body, and not with that other one." The idea is double; for either the souls individualized themselves, and Thomas abandoned his doctrine of their instantaneous creation, with the bodies, out of nothing; or God individualized them in the act of creation, and matter had nothing to do with it. The difficulty is no concern of ours, but the great scholars who took upon themselves to explain it made it worse, until at last one gathers only that Saint Thomas held one of three views: either the soul of humanity was individualized by God, or it individualized itself, or it was divided by ratio of quantity, that is, by matter. This amounts to saying that one knows nothing about it, which we knew before and may admit with calmness; but Thomas Aquinas was not so happily placed, between the Church and the schools. Humanity had a form common to itself, which made it what it was. By some means this form was associated with matter; in fact, matter was only known as associated with form. If, then, God, by an instantaneous act, created matter and gave it form according to the dimensions of the matter, innocent ignorance might infer that there was, in the act of God, one world- soul and one world-matter, which He united in different proportions to make men and things. Such a doctrine was fatal to the Church. No greater heresy could be charged against the worst Arab or Jew, and Thomas was so well aware of his danger that he recoiled from it with a vehemence not at all in keeping with his supposed phlegm. With feverish eagerness to get clear of such companions, he denied and denounced, in all companies, in season and out of season, the idea that intellect was one and the same for all men, differing only with the quantity of matter it accompanied. He challenged the adherent of such a doctrine to battle; "let him take the pen if he dares!" No one dared, seeing that even Jews enjoyed a share of common sense and had seen some of their friends burn at the stake not very long before for such opinions, not even openly maintained; while uneducated people, who are perhaps incapable of receiving intellect at all, but for whose instruction and salvation the great work of Saint Thomas and his scholars must chiefly exist, cannot do battle because they cannot understand Thomas's doctrine of matter and form which to them seems frank pantheism.

So it appeared to Duns Scotus also, if one may assert in the Doctor Subtilis any opinion without qualification. Duns began his career only about 1300, after Thomas's death, and stands, therefore, beyond our horizon; but he is still the pride of the Franciscan Order and stands second in authority to the great Dominican alone. In denying Thomas's doctrine that matter individualizes mind, Duns laid himself open to the worse charge of investing matter with a certain embryonic, independent, shadowy soul of its own. Scot's system, compared with that of Thomas, tended toward liberty. Scot held that the excess of power in Thomas's prime motor neutralized the power of his secondary causes, so that these appeared altogether superfluous. This is a point that ought to be left to the Church to decide, but there can be no harm in quoting, on the other hand, the authority of some of Scot's critics within the Church, who have thought that his doctrine tended to deify matter and to keep open the road to Spinoza. Narrow and dangerous was the border-line always between pantheism and materialism, and the chief interest of the schools was in finding fault with each other's paths.

The opinions in themselves need not disturb us, although the question is as open to dispute as ever it was and perhaps as much disputed; but the turn of Thomas's mind is worth study. A century or two later, his passion to be reasonable, scientific, architectural would have brought him within range of the Inquisition. Francis of Assisi was not more archaic and cave-dweller than Thomas of Aquino was modern and scientific. In his effort to be logical he forced his Deity to be as logical as himself, which hardly suited Omnipotence. He hewed the Church dogmas into shape as though they were rough stones. About no dogma could mankind feel interest more acute than about that of immortality, which seemed to be the single point vitally necessary for any Church to prove and define as clearly as light itself. Thomas trimmed down the soul to half its legitimate claims as an immortal being by insisting that God created it from nothing in the same act or will by which He created the body and united the two in time and space. The soul existed as form for the body, and had no previous existence. Logic seemed to require that when the body died and dissolved, after the union which had lasted, at most, only an instant or two of eternity, the soul, which fitted that body and no other, should dissolve with it. In that case the Church dissolved, too, since it had no reason for existence except the soul. Thomas met the difficulty by suggesting that the body's form might take permanence from the matter to which it gave form. That matter should individualize mind was itself a violent wrench of logic, but that it should also give permanence—the one quality it did not possess—to this individual mind seemed to many learned doctors a scandal. Perhaps Thomas meant to leave the responsibility on the Church, where it belonged as a matter not of logic but of revealed truth. At all events, this treatment of mind and matter brought him into trouble which few modern logicians would suspect.

The human soul having become a person by contact with matter, and having gained eternal personality by the momentary union, was finished, and remains to this day for practical purposes unchanged; but the angels and devils, a world of realities then more real than man, were never united with matter, and therefore could not be persons. Thomas admitted and insisted that the angels, being immaterial,—neither clothed in matter, nor stamped on it, nor mixed with it,—were universals; that is, each was a species in himself, a class, or perhaps what would be now called an energy, with no other individuality than he gave himself.

The idea seems to modern science reasonable enough. Science has to deal, for example, with scores of chemical energies which it knows little about except that they always seem to be constant to the same conditions; but every one knows that in the particular relation of mind to matter the battle is as furious as ever. The soul has always refused to live in peace with the body. The angels, too, were always in rebellion. They insisted on personality, and the devils even more obstinately than the angels. The dispute was—and is—far from trifling. Mind would rather ignore matter altogether. In the thirteenth century mind did, indeed, admit that matter was something,—which it quite refuses to admit in the twentieth,—but treated it as a nuisance to be abated. To the pure in spirit one argued in vain that spirit must compromise; that nature compromised; that God compromised; that man himself was nothing but a somewhat clumsy compromise. No argument served. Mind insisted on absolute despotism. Schoolmen as well as mystics would not believe that matter was what it seemed,—if, indeed, it existed;—unsubstantial, shifty, shadowy; changing with incredible swiftness into dust, gas, flame; vanishing in mysterious lines of force into space beyond hope of recovery; whirled about in eternity and infinity by that mind, form, energy, or thought which guides and rules and tyrannizes and is the universe. The Church wanted to be pure spirit; she regarded matter with antipathy as something foul, to be held at arms' length lest it should stain and corrupt the soul; the most she would willingly admit was that mind and matter might travel side by side, like a doubleheaded comet, on parallel lines that never met, with a preestablished harmony that existed only in the prime motor.

Thomas and his master Albert were almost alone in imposing on the Church the compromise so necessary for its equilibrium. The balance of matter against mind was the same necessity in the Church Intellectual as the balance of thrusts in the arch of the Gothic cathedral. Nowhere did Thomas show his architectural obstinacy quite so plainly as in thus taking matter under his protection. Nothing would induce him to compromise with the angels. He insisted on keeping man wholly apart, as a complex of energies in which matter shared equally with mind. The Church must rest firmly on both. The angels differed from other beings below them' precisely because they were immaterial and impersonal. Such rigid logic outraged the spiritual Church.

Perhaps Thomas's sudden death in 1274 alone saved him from the fate of Abelard, but it did not save his doctrine. Two years afterwards, in 1276, the French and English churches combined to condemn it. Etienne Tempier, Bishop of Paris, presided over the French Synod; Robert Kilwardeby, of the Dominican Order, Archbishop of Canterbury, presided over the Council at Oxford. The synods were composed of schoolmen as well as churchmen, and seem to have been the result of a serious struggle for power between the Dominican and Franciscan Orders. Apparently the Church compromised between them by condemning the errors of both. Some of these errors, springing from Alexander Hales and his Franciscan schools, were in effect the foundation of another Church. Some were expressly charged against Brother Thomas. "Contra fratrem Thomam" the councils forbade teaching that—"quia intelligentiae non habent materiam, Deus non potest plures ejusdem speciei facere; et quod materia non est in angelis"; further, the councils struck at the vital centre of Thomas's system—"quod Deus non potest individua multiplicare sub una specie sine materia"; and again in its broadest form,—"quod formae non accipiunt divisionem nisi secundam materiam." These condemnations made a great stir. Old Albertus Magnus, who was the real victim of attack, fought for himself and for Thomas. After a long and earnest effort, the Thomists rooted out opposition in the order, and carried their campaign to Rome. After fifty years of struggle, by use of every method known in Church politics, the Dominican Order, in 1323, caused John XXII to canonize Thomas and in effect affirm his doctrine.

The story shows how modern, how heterodox, how material, how altogether new and revolutionary the system of Saint Thomas seemed at first even in the schools; but that was the affair of the Church and a matter of pure theology. We study only his art. Step by step, stone by stone, we see him build his church-building like a stonemason, "with the care that the twelfth-century architects put into" their work, as Viollet-le-Duc saw some similar architect at Rouen, building the tower of Saint-Romain: "He has thrown over his work the grace and finesse, the study of detail, the sobriety in projections, the perfect harmony," which belongs to his school, and yet he was rigidly structural and Norman. The foundation showed it; the elevation, which is God, developed it; the vaulting, with its balance of thrusts in mind and matter, proved it; but he had still the hardest task in art, to model man.

The cathedral, then, is built, and God is built into it, but, thus far, God is there alone, filling it all, and maintains the equilibrium by balancing created matter separately against created mind. The proportions of the building are superb; nothing so lofty, so large in treatment, so true in scale, so eloquent of multiplicity in unity, has ever been conceived elsewhere; but it was the virtue or the fault of superb structures like Bourges and Amiens and the Church universal that they seemed to need man more than man needed them; they were made for crowds, for thousands and tens of thousands of human beings; for the whole human race, on its knees, hungry for pardon and love. Chartres needed no crowd, for it was meant as a palace of the Virgin, and the Virgin filled it wholly; but the Trinity made their church for no other purpose than to accommodate man, and made man for no other purpose than to fill their church; if man failed to fill it, the church and the Trinity seemed equally failures. Empty, Bourges and Beauvais are cold; hardly as religious as a wayside cross; and yet, even empty, they are perhaps more religious than when filled with cattle and machines. Saint Thomas needed to fill his Church with real men, and although he had created his own God for that special purpose, the task was, as every boy knew by heart, the most difficult that Omnipotence had dealt with.

God, as Descartes justly said, we know! but what is man? The schools answered: Man is a rational animal! So was apparently a dog, or a bee, or a beaver, none of which seemed to need churches. Modern science, with infinite effort, has discovered and announced that man is a bewildering complex of energies, which helps little to explain his relations with the ultimate substance or energy or prime motor whose existence both science and schoolmen admit; which science studies in laboratories and religion worships in churches. The man whom God created to fill his Church, must be an energy independent of God; otherwise God filled his own Church with his own energy. Thus far, the God of Saint Thomas was alone in His Church. The beings He had created out of nothing—Omar's pipkins of clay and shape—stood against the walls, waiting to receive the wine of life, a life of their own.