The reader must not suppose that the destructive criticism of the Catholic Church and of Catholic Christianity, and the printing and study of the Bible, were the only or even the most important of the intellectual activities of the fourteenth and fifteenth centuries. That was merely the popular and most conspicuous aspect of the intellectual revival of the time. Behind this conspicuous and popular awakening to thought and discussion, other less immediately striking but ultimately more important mental developments were in progress. Of the trend of these developments we must now give some brief indications. They had begun long before books were printed, but it was printing that released them from obscurity.
We have already told something of the first appearance of the free intelligence, the spirit of inquiry and plain statement, in human affairs. One name is central in the record of that first attempt at systematic knowledge, the name of Aristotle. We have noted also the brief phase of scientific work at Alexandria. From that time onward the complicated economic and political and religious conflicts of Europe and Western Asia impeded further intellectual progress. These regions, as we have seen, fell for long ages under the sway of the Oriental type of monarchy and of Oriental religious traditions. Rome tried and abandoned a slave-system of industry. The first great capitalistic system developed and fell into chaos through its own inherent rottenness. Europe relapsed into universal insecurity. The Semite rose against the Aryan, and replaced Hellenic civilization throughout Western Asia and Egypt by an Arabic culture. All Western Asia and half of Europe fell under Mongolian rule. It is only in the twelfth and thirteenth centuries that we find the Nordic intelligence struggling through again to expression.
We then find in the growing universities of Paris, Oxford, and Bologna an increasing amount of philosophical discussion going on. In form it is chiefly a discussion of logical questions. As the basis of this discussion we find part of the teachings of Aristotle, not the whole mass of writings he left behind him, but his logic only. Later on his work became better known through the Latin translations of the Arabic edition annotated by Averroes.[384]
Except for these translations of Aristotle, very little of the Greek philosophical literature was read in Western Europe until the fifteenth century. The creative Plato—as distinguished from the scientific Aristotle—was almost unknown. Some neo-Platonic writers were known, but neo-Platonism had much the same relation to Plato that Christian Science has to Christ.
It has been the practice of recent writers to decry the philosophical discussion of the mediæval “schoolmen” as tedious and futile. It was nothing of the sort. It had to assume a severely technical form because the dignitaries of the church, ignorant and intolerant, were on the watch for heresy. It lacked the sweet clearness, therefore, of fearless thought. It often hinted what it dared not say. But it dealt with fundamentally important things, it was a long and necessary struggle to clear up and correct certain inherent defects of the human mind, and many people to-day blunder dangerously through their neglect of the issues the schoolmen discussed.
There is a natural tendency in the human mind to exaggerate the differences and resemblances upon which classification is based, to suppose that things called by different names are altogether different, and that things called by the same name are practically identical. This tendency to exaggerate classification produces a thousand evils and injustices. In the sphere of race or nationality, for example, a “European” will often treat an “Asiatic” almost as if he were a different animal, while he will be disposed to regard another “European” as necessarily as virtuous and charming as himself. He will, as a matter of course, take sides with Europeans against Asiatics. But, as the reader of this history must realize, there is no such difference as the opposition of these names implies. It is a phantom difference created by two names....
The main mediæval controversy was between the “Realists” and the “Nominalists,” and it is necessary to warn the reader that the word “Realist” in mediæval discussion has a meaning almost diametrically opposed to “Realist” as it is used in the jargon of modern criticism. The modern “Realist” is one who insists on materialist details; the mediæval “Realist” was far nearer what nowadays we should call an Idealist, and his contempt for incidental detail was profound. The Realists outdid the vulgar tendency to exaggerate the significance of class. They held that there was something in a name, in a common noun that is, that was essentially real. For example, they held there was a typical “European,” an ideal European, who was far more real than any individual European. Every European was, as it were, a failure, a departure, a flawed specimen of this profounder reality. On the other hand the Nominalist held that the only realities in the case were the individual Europeans, that the name “European” was merely a name and nothing more than a name applied to all these instances.
Nothing is quite so difficult as the compression of philosophical controversies, which are by their nature voluminous and various and tinted by the mental colours of a variety of minds. With the difference of Realist and Nominalist stated baldly, as we have stated it here, the modern reader unaccustomed to philosophical discussion may be disposed to leap at once to the side of the Nominalist. But the matter is not so simple that it can be covered by one instance, and here we have purposely chosen an extreme instance. Names and classifications differ in their value and reality. While it is absurd to suppose that there can be much depth of class difference between men called Thomas and men called William, or that there is an ideal and quintessential Thomas or William, yet on the other hand there may be much profounder differences between a white man and a Hottentot, and still more between Homo sapiens and Homo neanderthalensis. While again the distinction between the class of pets and the class of useful animals is dependent upon very slight differences of habit and application, the difference of a cat and dog is so profound that the microscope can trace it in a drop of blood or a single hair. When this aspect of the question is considered, it becomes understandable how Nominalism had ultimately to abandon the idea that names were as insignificant as labels, and how, out of a revised and amended Nominalism, there grew up that systematic attempt to find the true—the most significant and fruitful—classification of things and substances which is called Scientific Research.
And it will be almost as evident that while the tendency of Realism, which is the natural tendency of every untutored mind, was towards dogma, harsh divisions, harsh judgments, and uncompromising attitudes, the tendency of earlier and later Nominalism was towards qualified statements, towards an examination of individual instances, and towards inquiry and experiment and scepticism. And it may not surprise the reader to learn that the philosophy of the Catholic Church was essentially a Realist philosophy.[385]
So while in the market-place and the ways of the common life men were questioning the morals and righteousness of the clergy, the good faith and propriety of their celibacy, and the justice of papal taxation; while in theological circles their minds were set upon the question of transubstantiation, the question of the divinity or not of the bread and wine in the mass, in studies and lecture-rooms a wider-reaching criticism of the methods of thought upon which the very fundamentals of Catholic teaching rested was in progress. We cannot attempt here to gauge the significance in this process of such names as Peter Abelard (1079-1142), Albertus Magnus (1193-1280), and Thomas Aquinas (1225-1274). These men sought to reconstruct Catholicism on a sounder system of reasoning. Chief among their critics and successors were Duns Scotus (?-1308), an Oxford Franciscan and, to judge by his sedulous thought and deliberate subtleties, a Scotchman, and Occam, an Englishman (?-1347). Both these latter, like Averroes (see chap. xxxii, § 8), made a definite distinction between theological and philosophical truth; they placed theology on a pinnacle, but they placed it where it could no longer obstruct research. Duns Scotus declared that it was impossible to prove by reasoning the existence of God or of the Trinity or the credibility of the Act of Creation; Occam was still more insistent upon this separation—which manifestly released scientific inquiry from dogmatic control. A later generation, benefiting by the freedoms towards which these pioneers worked, and knowing not the sources of its freedom, had the ingratitude to use the name of Scotus as a term for stupidity, and so we have our English word “Dunce.” Says Professor Pringle Pattison,[386] “Occam, who is still a Scholastic, gives us the Scholastic justification of the spirit which had already taken hold upon Roger Bacon, and which was to enter upon its rights in the fifteenth and sixteenth centuries.”