Before endeavouring briefly to reconstruct the intellectual qualities of Abaelard from his writings, let us see how the famous open letter to a friend, in giving an apologetic story of the writer’s life, discloses the fatalities of his character. This _Historia calamitatum suarum_ makes it plain enough why the crises of his life were all of them catastrophes--even leaving out of view his liaison with Heloïse and its penalty. A fatal impulse to annoy seems to drive him from fate to fate; the old word of Heraclitus ἦθος ἀνθρώπῳ δαίμων (character is a man’s genius) was so patently true of him. Much that he said was to receive orthodox approval after his time. Quite true. It has often been remarked, that the heresy of one age is the accepted doctrine of the next, even within the Church. But would the heretic have been _persona grata_ to the later time? Perhaps not. Peter Abaelard at all events would have led others and himself a life of thorns in the thirteenth century, or the fourteenth had he been born again, when some of his methods and opinions had become accepted commonplace. Did he have an eye for logical and human truth more piercing than his twelfth-century fellows? Apparently. Was his need to speak out his truth so much the more imperative than theirs? Possibly. At all events, he was certainly possessed with an inordinate impulsion to undo his rivals. He sits down before their fortress walls by night, and when they see him there, they know not whether they look on friend or foe--in this auditor. They will find out soon enough. He studied dialectic under William of Champeaux at Paris, as all men were to know. He got what William had to teach, and moved on, to lecture in Melun and elsewhere. Then he returned and sat at William’s feet awhile to learn rhetoric, as he announced. But quickly he rose up, and assailed his master’s doctrine of universals, and overthrew him, as we have seen. The victim’s friends made Abaelard’s eristically won lecturer’s seat a prickly one. He left Paris for a while, and then returned and taught on Mount St. Geneviève, outside the city.