John Marenbon

Peter Abelard (1079–1142 ce) was the most wide‐ranging philosopher of the twelfth century. He quickly established himself as a leading teacher of logic in and near Paris shortly after 1100. After his affair with Heloise, and his subsequent castration, Abelard became a monk, but he returned to teaching in the Paris schools until 1140, when his work was condemned by a Church Council at Sens. His logical writings were based around discussion of the “Old Logic”: Porphyry's Isagoge, aristotle'S Categories and On Interpretation and boethius'S textbook on topical inference. They comprise a freestanding Dialectica (“Logic”; probably c.1116), a set of commentaries (known as the Logica [Ingredientibus], c. 1119) and a later (c. 1125) commentary on the Isagoge (Logica Nostrorum Petititoni Sociorum or Glossulae). In a work Abelard called his Theologia, issued in three main versions (between 1120 and c.1134), he attempted a logical analysis of trinitarian relations and explored the philosophical problems surrounding God's claims to omnipotence and omniscience. The Collationes (“Debates,” also known as “Dialogue between a Christian, a Philosopher and a Jew”; probably c.1130) present a rational investigation into the nature of the highest good, in which the Christian and the Philosopher (who seems to be modeled on a philosopher of pagan antiquity) are remarkably in agreement. The unfinished Scito teipsum (“Know thyself,” also known as the “Ethics”; c.1138) analyses moral action.

This special issue grew out of a small conference The Known & the Unknown: Exploring Twelfth-Century Philosophy, which was funded by the Carlsberg Foundation, hosted by the Saxo Institute, and held at the University of Copenhagen in April 2018. Its central topic was the many, mostly unexplored, commentaries on Aristotle, Boethius, and Porphyry that constitute the key textual evidence for a fascinating phenomenon that, although it played a pivotal role in the philosophical revival of Western Europe, remains frustratingly underexplored to this day: the logical schools of the twelfth century. The present introduction has two parts. In the first part, John Marenbon lays out the background to this special issue of Vivarium as a whole, explaining both what the philosophical project pursued by twelfth-century logicians was and how, and how far, the historical project of understanding it has progressed over the last two hundred years. In the second part, Heine Hansen briefly presents the issue and its contents.

Pagans and Philosophers explores how writers—philosophers and theologians, but also poets such as Dante, Chaucer, and Langland, and travelers such as Las Casas and Ricci—tackled the Problem of Paganism. Augustine and Boethius set its terms, while Peter Abelard and John of Salisbury were important early advocates of pagan wisdom and virtue. University theologians such as Aquinas, Scotus, Ockham, and Bradwardine, and later thinkers such as Ficino, Valla, More, Bayle, and Leibniz, explored the difficulty in depth. Meanwhile, Albert the Great inspired Boethius of Dacia and others to create a relativist conception of scientific knowledge that allowed Christian teachers to remain faithful Aristotelians. At the same time, early anthropologists such as John of Piano Carpini, John Mandeville, and Montaigne developed other sorts of relativism in response to the issue.

William of Ockham is known to be one of the major figures of the late Middle Ages. The scope and significance of his doctrine of human thought, however, has been a controversial issue among scholars in the last decade, and this book presents a full discussion of recent developments. Claude Panaccio proposes a richly documented and entirely original reinterpretation of Ockham's theory of concepts as a coherent blend of representationalism, conceptual atomism, and non reductionist nominalism, stressing in the process its special interest for current discussions in philosophy of mind and cognitive sciences.

Roberto Pinzani has written a closely-argued, highly original, valuable but difficult book. The Problem of Universals, indeed, is—and has been for nearly two centuries—the most frequently treated topic in medieval philosophy, and solutions to it proposed by two of the philosophers discussed here, Boethius and Abelard, have been examined countless times. But no one has before tried to cover the whole period, from circa 500 to circa 1150, looking in detail at a whole variety of writers. Moreover, what Pinzani has to say even about Boethius and Abelard is new.After a chapter setting out the problem, as he understands it, and looking especially at predication in Aristotle, Pinzani goes on to Boethius and then the...

Discusses Boethius's logical monographs: his treatises on division, on categorical syllogisms, and most importantly, his works on the theory of topical argument and on hypothetical syllogisms. The theory of topics, as developed in late antiquity and known almost entirely through Boethius, concerns the devising of arguments that rest on obvious general principles but are not, in their basic formulation, formally valid deductions. In his work on hypothetical syllogisms, Boethius seems to take account of Stoic propositional logic, but in fact, he does not properly grasp its principles. This chapter shows how Boethius's logical mongraphs fit with the Aristotelianizing approach of his commentaries.

After looking at the verse in the Consolation of Philosophy and other more literary aspects of it, this chapter proposes an interpretation of the work as a whole, which takes account of the fact that it is a prosimetrum – a genre in which the claims of learning were often challenged. Boethius, the chapter argues, regards philosophy with great respect, but considers it limited when it comes to providing a comprehensive and coherent understanding of the order of things. The differing attitudes of Boethius and Augustine, as Christians, to pagan Neoplatonism are contrasted.

According to Alain de Libera, Boethius replies to Porphyry’s famous three questions about universals by using a theory of abstraction. Universals can exist only in thought, although they derive, through abstraction, from what is common in things. I contrast this “neutral abstractionism” with a “realist abstractionism” — the view that it is only by conceiving universals that humans are able properly to grasp the form or likeness according to which particulars belong to a given species or genus. I try to show that, in his second commentary on the Isagoge, Boethius is uncertain which sort of abstractionism to prefer, but in the Consolation he opts for realist abstractionism.

The philosophy discussed in this volume constitutes the intellectual and philosophical ideas of the medieval era, from Aquinas and Anselm, the intellectual philosophy of the Judaic and Arabic traditions, the Twelfth Century Renaissance and the philosophical ideas associated with the emergence of the universities. This volume provides a broad and scholarly introduction to the major authors and issues involved in the philosophical discourse of the medieval era, as well as some original interpretations of the philosophical writings addressed. It includes a glossary of technical terms and a chronological table of philosophical and other cultural events

A collection of essays written by pupils, friends and colleagues of Professor Peter Dronke, to honour him on his retirement. The essays address the question of the relationship between poetry and philosophy in the Middle Ages. Contributors include Walter Berschin, Charles Burnett, Stephen Gersh, Michael Herren, Edouard Jeauneau, David Luscombe, Paul Gerhardt Schmidt, Joe Trapp, Jill Mann, Claudio Orlandi and John Marenbon. It is an important collection for both philosophical and literary specialists; scholars, graduate students and under-graduates in Medieval Literature and in Medieval Philosophy.