Peter Abelard, ‘History of His Calamities’, Chapter 2.
I came at length to Paris, where above all in those days the art of dialectics was most flourishing, and there did I meet William of Champeaux, my teacher, a man most distinguished in his science both by his renown and by his true merit. With him I remained for some time, at first indeed well liked of him; but later I brought him great grief, because I undertook to refute certain of his opinions, not infrequently attacking him in disputation, and now and then in these debates I was adjudged victor. Now this, to those among my fellow students who were ranked foremost, seemed all the more insufferable because of my youth and the brief duration of my studies.
Out of this sprang the beginning of my misfortunes, which have followed me even to the present day; the more widely my fame was spread abroad, the more bitter was the envy that was kindled against me. It was given out that I, presuming on my gifts far beyond the warranty of my youth, was aspiring despite my tender years to the leadership of a school; nay, more, that I was making ready the very place in which I would undertake this task, the place being none other than the castle of Melun, at that time a royal seat. My teacher himself had some foreknowledge of this, and tried to remove my school as far as possible from his own. Working in secret, he sought in every way he could before I left his following to bring to nought the school I had planned and the place I had chosen for It. Since, however, in that very place he had many rivals, and some of them men of influence among the great ones of the land, relying on their aid I won to the fulfillment of my wish; the support of many was secured for me by reason of his own unconcealed envy. From this small inception of my school, my fame in the art of dialectics began to spread abroad, so that little by little the renown, not alone of those who had been my fellow students, but of our very teacher himself, grew dim and was like to die out altogether. Thus it came about that, still more confident in myself, I moved my school as soon as I well might to the castle of Corbeil, which is hard by the city of Paris, for there I knew there would be given more frequent chance for my assaults in our battle of disputation.
No long time thereafter I was smitten with a grievous illness, brought upon me by my immoderate zeal for study. This illness forced me to turn homeward to my native province, and thus for some years I was as if cut off from France. And yet, for that very reason, I was sought out all the more eagerly by those whose hearts were troubled by the lore of dialectics. But after a few years had passed, and I was whole again from my sickness, I learned that my teacher, that same William Archdeacon of Paris, had changed his former garb and joined an order of the regular clergy. This he had done, or so men said, in order that he might be deemed more deeply religious, and so might be elevated to a loftier rank in the prelacy, a thing which, in truth, very soon came to pass, for he was made bishop of Chalons. Nevertheless, the garb he had donned by reason of his conversion did nought to keep him away either from the city of Paris or from his wonted study of philosophy; and in the very monastery wherein he had shut himself up for the sake of religion he straightway set to teaching again after the same fashion as before.
To him did I return for I was eager to learn more of rhetoric from his lips; and in the course of our many arguments on various matters, I compelled him by most potent reasoning first to alter his former opinion on the subject of the universals, and finally to abandon it altogether. Now, the basis of this old concept of his regarding the reality of universal ideas was that the same quality formed the essence alike of the abstract whole and of the individuals which were its parts: in other words, that there could be no essential differences among these individuals, all being alike save for such variety as might grow out of the many accidents of existence. Thereafter, however, he corrected this opinion, no longer maintaining that the same quality was the essence of all things, but that, rather, it manifested itself in them through diverse ways. This problem of universals is ever the most vexed one among logicians, to such a degree, indeed, that even Porphyry, writing in his “Isagoge” regarding universals, dared not attempt a final pronouncement thereon, saying rather: “This is the deepest of all problems of its kind.” Wherefore it followed that when William had first revised and then finally abandoned altogether his views on this one subject, his lecturing sank into such a state of negligent reasoning that it could scarce be called lecturing on the science of dialectics at all; it was as if all his science had been bound up in this one question of the nature of universals.
Thus it came about that my teaching won such strength and authority that even those who before had clung most vehemently to my former master, and most bitterly attacked my doctrines, now flocked to my school. The very man who had succeeded to my master’s chair in the Paris school offered me his post, in order that he might put himself under my tutelage along with all the rest, and this in the very place where of old his master and mine had reigned. And when, in so short a time, my master saw me directing the study of dialectics there, it is not easy to find words to tell with what envy he was consumed or with what pain he was tormented. He could not long, in truth, bear the anguish of what he felt to be his wrongs, and shrewdly he attacked me that he might drive me forth. And because there was nought in my conduct whereby he could come at me openly, he tried to steal away the school by launching the vilest calumnies against him who had yielded his post to me, and by putting in his place a certain rival of mine. So then I returned to Melun, and set up my school there as before; and the more openly his envy pursued me, the greater was the authority it conferred upon me. Even so held the poet: “Jealousy aims at the peaks; the winds storm the loftiest summits.” (Ovid:”Remedy for Love,” I,369.)
Not long thereafter, when William became aware of the fact that almost all his students were holding grave doubts as to his religion, and were whispering earnestly among themselves about his conversion, deeming that he had by no means abandoned this world, he withdrew himself and his brotherhood, together with his students, to a certain estate far distant from the city. Forthwith I returned from Melun to Paris, hoping for peace from him in the future. But since, as I have said, he had caused my place to be occupied by a rival of mine, I pitched the camp, as it were, of my school outside the city on Mont Ste. Genevieve. Thus I was as one laying siege to him who had taken possession of my post. No sooner had my master heard of this than he brazenly returned post haste to the city, bringing back with him such students as he could, and reinstating his brotherhood in their former monastery, much as if he would free his soldiery, whom he had deserted, from my blockade. In truth, though, if it was his purpose to bring them succor, he did nought but hurt them. Before that time my rival had indeed had a certain number of students, of one sort and another, chiefly by reason of his lectures on Priscian, in which he was considered of great authority. After our master had returned, however, he lost nearly all of these followers, and thus was compelled to give up the direction of the school. Not long thereafter, apparently despairing further of worldly fame, he was converted to the monastic life.