Martin Tweedale

Whether or not we adopt some form of physicalism in our thinking about the psychology of humans and other organisms we all believe that a mind is something that comes into being, changes, develops and decays. The correlation of the development and then later the decay of our mental powers with changes in the brain post-dates our belief that the mental realm is as much an area where things ebb and flow, come to be and pass away, as is the physical. Even ancient authors who hold to the indestructibility of the soul allow that it changes in a host of ways. It is very odd, then, to discover that Aristotle appears to deny all this and feels impelled to treat the soul as unchanging and motionless. I propose to explore here exactly what Aristotle meant by saying the soul does not move and why he said it. In the end our investigation leads to some difficulties for Aristotle's psychological ontology which I am not able to resolve.

This book is an extensive review & analysis of Aristotelian thought as received & adapted by such medieval commentators as Ammonius, Philoponus, Boethius, al-Farabi, Yahya ibn 'Adi, Avicenna, Albertus Magnus, Thomas Aquinas, Martin of Dacia, Simon of Faversham, John Duns Scotus, Peter of Spain, Robert Kilwardby, William of Ockham, & Giles of Rome. The discussions range from metaphysics to logic, linguistics, & epistemology, encompassing such topics as being, god, causation, actuality, potentiality, universals, individuation, signification, cognition, certainty, infallibility, error, ignorance, analogy, grammar, interpretation, foundationalism, & the eucharist & transubstantiation.

Although there are a very few occasions on which Aristotle speaks of words, on the one hand, or mental concepts, on the other, as universals, he was no nominalist and no conceptualist. This negative thesis I have argued sufficiently, at least to my own satisfaction, in an earlier paper. He was, rather, a realist, but of a very tenuous sort. As I said in the earlier paper, he viewed universals as real entities but lacking numerical oneness; each is numerically many, and yet each is also one in some sense. The specific identity of numerically distinct particulars creates something like a class, and this is the universal.This interpretation was not, in the earlier paper, defended against those who would attribute to Aristotle a much more robust form of realism, and it is that defense which this paper will undertake to provide. The evidence which can be marshalled for the more robust realism is impressive – more so, I would say, than that which can be brought forth for either the nominalist or the conceptualist interpretations. It rests on numerous passages which either explicitly or implicitly seem to tie together as identical, forms, substances, universals, and intelligible objects.

Once Alexander of Aphrodisias revived the Peripatetic philosophy in the late secondcentury CE, Aristotle's surviving corpus became the guiding texts for a philosophicalschool, and, like any school, the Aristotelian one tried to systematize and dogmatizeits founder's teachings into a coherent and comprehensive approach to everything. Thisway of reading Aristotle was the dominant one through the Islamic and Christian Middle Ages, although occasionally a dissenter might express some doubt about how certain Aristotle was on various points, particularly in cosmology and natural science. Nordid Aristotle's detractors in the modern period cease to regard his philosophy as totallydogmatic—though fundamentally mistaken, of course. It was not until German scholarship in the nineteenth century thought it could discern temporal development in Aristotle's approach to a wide variety of questions that the scholastic view ceased to be theestablished wisdom. But now this historical approach has been largely jettisoned, leaving us with an Aristotelian corpus in which we can recognize many doctrinal tensions and doubts that were very likely endemic to Aristotle's thought right to the end of his life.

This book presents selections from the political and social thought of the ancient West from the early sixth century BCE up to the early years of the Roman Empire and includes not only the classic philosophers, Plato, Aristotle, and Cicero, but a number of dramatists and historians as well. The range of topics these writings treat run from class conflict, through the perils of democracy and the horrors of tyranny, to the place of women in politics, while the styles range from the deeply dramatic of Sophocles' Antigone and the bawdy satire of Aristophanes' Assemblywomen to Plato's Socratic dialogue Republic and Aristotle's scientific treatise Politics. The translations have been chosen, and sometimes modified, for clarity and readability, and are accompanied by introductions which set forth the historical context and trace the general lines of thought the readings develop. Frequent notes explain references to ancient lore unfamiliar to many readers. Questions for discussion accompany each reading.

Two of the best currently practising scholars of Ockham, Marilyn Adams and Paul Spade, seem to have accepted a reading of Ockham's ontological program which, although it contains much that is uncontroversially correct, attributes to Ockham a reductionist view that is on my interpretation of his works far too radical to be genuinely Ockham's. Their reading runs as follows. So far as entities go, Ockham accepts only particular substances and some particular qualities. Aristotle's categories, according to Ockham, are not 10 broad classes of radically different sorts of things, but rather are classes of non-complex terms arranged roughly according to the kinds of questions they can be used to answer. When we look at these terms we find that those in the category of substance and some in the category of quality are not definable by some longer expression synonymous with them but simply signify each of the members of a certain class of substances or qualities. These terms are said to be absolute. But other terms can either be replaced by a definition that is synonymous with the term defined or can be interpreted as making “exponible” the sentences in which they occur. These terms are all said to be connotative. It is in principle possible to reword all the sentences in which these connotative terms appear so that the only categorematic terms left are absolute terms from the categories of substance and quality.

In lieu of an abstract, here is a brief excerpt of the content:Abailard and Non-Things MARTIN M. TWEEDALE On SEVERAL OCCASIONSin his logical writings Abailard extracts himself from embarrassing ontological implications of his analyses of language by resorting to the notion of a something that is not a thing. I shall note here two such occasions and then discuss Abailard's explanations of this procedure based on the grammatical distinction of personal and impersonal constructions. Since the texts on this latter topic are especially confusing, a considerable portion of my effort will be spent on making sense of them as preparation for drawing some conclusions about Abailard's overall approach. My purpose here is to show how Abailard's grammatical analyses are fundamental to his defence of a number of metaphysical positions. I also want to suggest that Abailard's grammatical approach, especially on the question of dicta, contains insights of continuing interest. Not all of Abailard's non-things are particularly associated with analyses of language. For instance, there are the likenesses the mind supposedly constructs for itself in order to think of things that are not being perceived. These Abailard calls fictive things (res ficta), and he refuses to give them the status of real psychological entities. ~ The likenesses are compared to mirror images which Abailard is also willing to treat as non-things. However, I wish to restrict my discussion here to cases which arise from Abailard's analysis of the reference of certain words. One such instance occurs in his discussion of universals. The peculiar nonthing here is the "state" (status), which, Abailard maintains, is "the common cause by which the universal word is imposed"7 Abailard is very careful to dis1Glossae super Porphyrium, in Peter Abelards philosophische,.gchriIten, edited by Geyer (henceforth referred ~o as Geyer), Miinster i. W., 1919 (BGPM, vol. 21), pp. 20-21, ll. 23-32: Intellectus autem sicut nec corporeo indigens instrumento est, ita /nec/ necesse est eum subiectum corpus habere in quod mittatur, sed rei ~dmilitudine contentus est, quam sibi ipse animus conficit, in quam suae intelligentiae actionem dirigit. Unde turr,~ destructa vel remota sensus qui in earn agebat, perit, inteUectus autem permanet rei similitudine auimo retenta. Sigut autem sensus non est res sentita, in quam dirigitur, sic nec intellectus forma est rei quam concipit, sed intellectus actio quaedam est animae, unde intelligens dicitur, forma vero in quam dirigitur, res imaginaria quaedam est et ficta, quam sibi, quando vult et qualm vult, animus conficit.... 11.9-17: Quaero enim, utrum flla quadratura et ilia altitudo vera forma sit intellectus, qui ad similitudinem quantitatis turris ducatur et compositionis eius. Sed profecto vera quadratura et vera altitudo non nisi corporibus insunt, ficta etiam qualitate nec intellectus nec ulla vera essentia forrnari potest. Restat igitur, ut sicut ficta eat qualitas, ficta substantia sit ei subiecta. Fortasae autem et ea speculi imago, quae visui subiecta apparere videtur, nihil esse vere dici potest, quoniam scilicetin alba speguli superficie contrarii coloris qualitas saepe apparet. Ibid., pp. 19-20,II. 14-16- ~ad nunc ea quae breviter tetigimus, diligenter perquiramus, scilicet quae sit iIla communis causa, secundum quam universale nomen impositum est.... 11. 21-29. Singuli homines discreti ab invicem, gum in propriis differant tam essentiis quam formis, ut supra meminimus rei physicam inquirentes, in eo tamen conveniunt, quod homines aunt. Non dico in homine, gum res nulla sit homo uisi discreta, sed in esse hominem. Esse autem hominem non est homo nec res aliqua, si diligentius consideremus, [329] 330 HISTORY OF PHILOSOPHY tinguish three different questions frequently confused in discussions on universals. The first is "What is 'universal' predicated of?", and the answer is simply words --words not in the sense of mere marks or sounds, but of meaningful marks or sounds. Another is "How do we have an idea associated with universals?" Here the aforementioned likenesses enter as that by which the mind can have an idea applicable to many individuals. But there is also the question of what makes a certain word correctly applicable to many things. Abailard does not make the error of thinking that an idea in the mind or some operation of the mind could possibly be the cause, as some conceptualists seem to think. This would lead to the conclusion that...

In this important collection, the editors argue that medieval philosophy is best studied as an interactive discussion between thinkers working on very much the same problems despite being often widely separated in time or place. Each section opens with at least one selection from a classical philosopher, and there are many points at which the readings chosen refer to other works that the reader will also find in this collection. There is a considerable amount of material from central figures such as Augustine, Abelard, Duns Scotus, and William of Ockham, as well as extensive texts from thinkers in the medieval Islamic world. Each selection is prefaced by a brief introduction by the editors, providing a philosophical and religious background to help make the material more accessible to the reader. This edition, updated throughout, contains a substantial new chapter on medieval psychology and philosophy of mind, with texts from authors not previously represented such as John Buridan and Peter John Olivi.