Plato's late dialogues have often been neglected because they lack the literary charm of his earlier masterpieces. Charles Kahn proposes a unified view of these diverse and difficult works, from the Parmenides and Theaetetus to the Sophist and Timaeus, showing how they gradually develop the framework for Plato's late metaphysics and cosmology. The Parmenides, with its attack on the theory of Forms and its baffling series of antinomies, has generally been treated apart from the rest of Plato's late work. Kahn (...) shows that this perplexing dialogue is the curtain-raiser on Plato's last metaphysical enterprise: the step-by-step construction of a wider theory of Being that provides the background for the creation story of the Timaeus. This rich study, the natural successor to Kahn's earlier Plato and the Socratic Dialogue, will interest a wide range of readers in ancient philosophy and science. (shrink)

I Deliberation, Practical Syllogisms , and Intuition. Introduction Aristotle's views on moral reasoning are a difficult and much disputed subject. ...

Monte Johnson examines one of the most controversial aspects of Aristiotle's natural philosophy: his teleology. Is teleology about causation or explanation? Does it exclude or obviate mechanism, determinism, or materialism? Is it focused on the good of individual organisms, or is god or man the ultimate end of all processes and entities? Is teleology restricted to living things, or does it apply to the cosmos as a whole? Does it identify objectively existent causes in the world, or is it merely (...) a heuristic for our understanding of other causal processes? Johnson argues that Aristotle's aporetic approach drives a middle course between these traditional oppositions, and avoids the dilemma, frequently urged against teleology, between backwards causation and anthropomorphism. Although these issues have been debated with extraordinary depth by Aristotle scholars, and touched upon by many in the wider philosophical and scientific community as well, there has been no comprehensive historical treatment of the issue. Aristotle is commonly considered the inventor of teleology, although the precise term originated in the eighteenth century. But if teleology means the use of ends and goals in natural science, then Aristotle was rather a critical innovator of teleological explanation. Teleological notions were widespread among his predecessors, but Aristotle rejected their conception of extrinsic causes such as mind or god as the primary causes for natural things. Aristotle's radical alternative was to assert nature itself as an internal principle of change and an end, and his teleological explanations focus on the intrinsic ends of natural substances - those ends that benefit the natural thing itself. Aristotle's use of ends was subsequently conflated with incompatible 'teleological' notions, including proofs for the existence of a providential or designer god, vitalism and animism, opposition to mechanism and non-teleological causation, and anthropocentrism. Johnson addresses these misconceptions through an elaboration of Aristotle's methodological statements, as well as an examination of the explanations actually offered in the scientific works. Reviewed in: Notre Dame Philosophical Review 2006.06.15; Bryn Mawr Classical Review 2006.08.37; Il-Sole – 24 Ore 6 Aug. 2006; Philosophy in Review 26 (2006): 360-2; Rhizai 3 (2006): 171-8; Journal of the History of Philosophy 45 (2007): 323-4; Ancient Philosophy 27 (2007): 191-200; Phronesis 52 (2007): 248-9; Isis 98 (2007): 375; Aestimatio 4 (2007) 146-152; The British Journal for the History of Science 41 (2008): 129-130. The European Legacy 14 (2009); La Cultura 47 (2009): 174-175; Sean M. Row, Teleology in Political Contexts: an assessment of Monte Ransome Johnson’s “Aristotle on Teleology”. (A thesis presented to the faculty of the college of arts and sciences of Ohio University, 2009.). (shrink)

The problem suggested by this passage cannot be properly appreciated unless it is shown first of all that the treatment of poetry and art in the Laws fundamentally agrees with, though of course in some respects it provides a welcome supplement to, the attitude set forth in the Republic and elsewhere by Plato. The demand that music and poetry should ‘imitate’ the good; and that this ‘imitation’ should have meaning and accuracy, and be free from mere emotionalism directly recalls the (...) doctrine of the Republic and other dialogues on the two kinds of imitation, which I have explained in the Classical Quarterly XXII p. 16, XXVI p. 161; the reason for the demand is the same—the imitation of evil has the same effect on character as the companionship of evil men. As for the effect of this ruling on comedy, the Republic is perhaps not over-clear. But the Laws explains that the comic art is to some extent valuable; its pictures of the ludicrous serve as a warning, and also help to make goodness more intelligible by setting it in relief; hence comedy may be performed for the edification of citizens by slaves or hired aliens under certain restrictions such as that a piece shall not have too long a run and that no ridicule of free men is to be permitted . On tragedy the two dialogues are in full agreement; it must become once more a hymn , using for a good purpose those forms of dramatic representation which are allowed to the poet in Rep. 396, and avoiding the mournful and complaining language of profane tragedy, which merely harrows the feelings and which cannot be used without blasphemy at a festival of the gods. (shrink)

There are grounds for taking Plato's agenda of searching for definitions to be ironic, and he points toward good arguments for being wary of trust in definitions.

THE TENTH BOOK OF THE LAWS, which contains Plato's last word on cosmology and theology, has often been considered as presenting Plato's views in a more exoteric way in contrast with the more esoteric style of the Timaeus. And there are good reasons to think that this view is correct. Whereas the Timaeus stresses that "to find the maker and father of this All is difficult, and, having found it, it is impossible to communicate it to the crowd", Plato is (...) in Laws 10 intending to establish a "proemium" or rational foundation for his laws against impiety, which are supposed to be known by all. In this proemium Plato tries to argue for three propositions: that the gods exist ; that they take care of human affairs ; that they cannot be bribed by sacrifices or prayers. The underlying assumption is that learning these facts about the gods will also help to prevent impiety which, like any kind of vice, is often due to ignorance. (shrink)

Plato's Timaeus is one of the most influential and challenging works of ancient philosophy to have come down to us. Sarah Broadie's rich and compelling study proposes new interpretations of major elements of the Timaeus, including the separate Demiurge, the cosmic 'beginning', the 'second mixing', the Receptacle and the Atlantis story. Broadie shows how Plato deploys the mythic themes of the Timaeus to convey fundamental philosophical insights and examines the profoundly differing methods of interpretation which have been brought to bear (...) on the work. Her book is for everyone interested in Ancient Greek philosophy, cosmology and mythology, whether classicists, philosophers, historians of ideas or historians of science. It offers new findings to scholars familiar with the material, but it is also a clear and reliable resource for anyone coming to it for the first time. (shrink)

Analizaremos las características de los cinco poliedros regulares convexos que Platón describe en el Timeo y esclareceremos los siguientes problemas: primero, mientras los poliedros regulares son cinco, los elementos naturales son solo cuatro; segundo, la transformación de unos elementos en otros; tercero, las proporciones que rigen las mezclas de los elementos, y cuarto, las consecuencias de la propuesta platónica en dos problemas científico filosóficos de ese momento: la causa del movimiento y la existencia o no del vacío.