One striking oddity about Democritus and Epicurus is that, even though Epicurus' theory of perception is largely the same as that of Democritus, Democritus and his followers draw skeptical conclusions from this theory of perception, whereas Epicurus declares that all perceptions are true or real. I believe that the dispute between Democritus and Epicurus stems from a question over what sort of ontological status should be assigned to sensible qualities. In this paper, I address three questions: 1) Why were Democritus (...) and his followers skeptical? 2) How did Epicurus modify Democritus' metaphysics in order to avoid these skeptical conclusions? and 3) How successful was he? -/- 1) I argue that Democritus allows only the intrinsic properties of atoms into his ontology, and then runs into skeptical difficulties because of the relativity of perception. 2) I propose that Epicurus modifies Democritus' ontology by allowing dispositional and relational properties as real properties of bodies. Sensible qualities are conceptualized as dispositional properties of bodies to cause certain experiences in percipients. 3) I argue that Epicurus does not run into the same problems as Democritus. Finally, I consider how my interpretation of Epicurus' ontology helps to make sense of his claim that all perceptions are alethes--'true' or 'real.'. (shrink)

All volumes of Professor Guthrie's great history of Greek philosophy have won their due acclaim. The most striking merits of Guthrie's work are his mastery of a tremendous range of ancient literature and modern scholarship, his fairness and balance of judgement and the lucidity and precision of his English prose. He has achieved clarity and comprehensiveness.

The secondary qualities are those qualities of objects that bear a certain relation to our sensory powers: roughly, they are those qualities that we can readily detect only through a certain distinctive phenomenal experience. Contrary to what is sometimes supposed, there is nothing about the world itself (independent of our minds) that determines the distinction between primary and secondary qualities. Instead, a theory of the secondary qualities must be grounded in facts about how we conceive of these qualities, and ultimately (...) in facts about human perception. (shrink)

Grains de poussiere dans un rayon de soleil... poesie du discontinu que la lumiere de l'entendement met a jour, verite du mobile et du minuscule: l'atomisme de Democrite porte, assurement, a rever. A l'aide des nombreux temoignages et fragments reunis par Diels et Luria, J. Salem a souhaite retrouver l'unite d'inspiration qui dut presider a cette oeuvre encyclopedique. Il est tout a fait possible de distinguer l'immense silhouette de Democrite dans maints textes de l'Antiquite: aussi est-il fort tentant de reconstituer (...) le systeme de pensee de celui que Seneque a tenu pour le plus subtil de tous les Anciens. (shrink)

Parmenides of Elea was the most important and influential philosopher before Plato. He rejected as impossible the scientific inquiry practiced by the earlier Presocratic philosophers and held that generation, destruction, and change are unreal and that only one thing exists. In this book, Patricia Curd argues that Parmenides sought to reform rather than to reject scientific inquiry, and she offers a more coherent account of his influence on later philosophers._ _The Legacy of Parmenides_ examines Parmenides' arguments, considering his connection to (...) earlier Greek thought and how his account of what-is could have served as a model for later philosophers. Curd also explores the theories of his successors, including the Pluralists, the Atomists, the later Eleatics, and the later Presocratics. She concludes with a discussion of the importance of Parmenides' work to Plato's _Theory of Forms._ _The Legacy of Parmenides_ challenges traditional views of early Greek philosophy and provides new insights into the work of Parmenides. "_The Legacy of Parmenides_ represents a milestone... of Parmenides' interpretation. It is full of ideas and tells a coherent story about Parmenides and early Greek thought." --_ Alexander Nehamas, Princeton University___ "Professor Curd offers a genuinely original and possibly correct interpretation of the core thesis of the poem of Parmenides in a field so well worked over that saying something both new and true is profoundly difficult, this is a notable achievement." --_ Thomas M. Robinson, University of Toronto___ "This will be a substantial book in the story of early Greek philosophy, and future writers on the tradition from Thales through Plato will not be able to ignore it without missing an important interpretive alternative. It will be of value to students of Presocratic philosophy or the Greek tradition, as well as to students of the scientific revolution, cosmology, the origins of logic, or comparative mysticism." --_ Scott W. Austin, Texas A&M University___ PATRICIA CURD_ is professor at Purdue University where she works primarily in Ancient Philosophy. She is a co-editor of _Readings in Ancient Greek Philosophy_, and is the editor of _A Presocratics Reader._. (shrink)

It is natural to suppose that honey tastes the way it does because it is sweet. Democritus, Plato and Aristotle all agree that this explanation is superficial and lacks causal depth; they attempt to explain gustatory phenomena by invoking explanatorily fundamental features of the world. As they work out their causal stories, do they give up on the common-sense explanation of why honey tastes the way it does? In other words, do they deny that sweetness and other sensible qualities are (...) causally efficacious features of the world around us? ;Our sources for Democritus' thinking on this issue present a problematic picture. On the one hand, Aristotle and Theophrastus suppose that Democritus wants to identify colors and flavors with causally efficacious features of the world around us. On the other hand, Theophrastus and others find Democritus defending the view that colors and flavors do not belong to the world around us. This tension, first pointed out by Theophrastus, is merely apparent, if, as certain texts suggest, Democritus distinguishes the colors and flavors which we experience from the colors and flavors which figure in his scientific explanations. ;In the Timaeus, Plato frequently says things like "What is capable of producing such and such effects on the gustatory region has the name 'bitter' thinspace". On Theophrastus' interpretation, Plato is offering definitions of the sensible qualities: flavors are identical with powers to produce certain physiological effects on the sense-organs. Theophrastus reasonably complains that sensible qualities will lack causal efficacy if they are identified with these powers of external objects, but Theophrastus' interpretation is mistaken: Plato is not defining the sensible qualities; he is fixing the reference of our sensible-quality terms. Recent historical work on the distinction between primary and secondary qualities has often emphasized the extent to which the authors of this distinction were motivated by an interest in supplanting prevalent, Peripatetic assumptions about the nature of sensible qualities, but Aristotle's theory does not differ significantly from that of Descartes: both identify colors with causally efficacious properties whose natures are revealed by scientific investigation. (shrink)