It is argued that according to Aristotle the universe is a single substance with its own form and matter.

It is a notion commonly acknowledged that in his work Timaeus the Athenian philosopher Plato (_c_. 429–347 BC) laid down an early chemical theory of the creation, structure and phenomena of the universe. There is much truth in this acknowledgement because Plato’s “chemistry” gives a description of the material world in mathematical terms, an approach that marks an outstanding advancement over cosmologic doctrines put forward by his predecessors, and which was very influential on western culture for many centuries. In the (...) present article, I discuss inter-transformations among Plato’s four types (fire, air, water, and earth) as well as the interpretation they received in the literature. I find that scientists and scholars generally emphasized (and often misunderstood) mathematical aspects of these “reactions” over the philosophical ones. I argue that Plato’s “chemistry” in fact bears on crucial topics of his philosophical system, such as Forms, Becoming, causation and teleology. I propose that consideration of these doctrines help to understand not only the sense of his “chemical” reactions, but also the reason why their stoichiometry is by surface balance and is restricted only to types that come to be and pass away but not to those that provoke the inter-transformations. (shrink)

Aristotle has traditionally been cast as the arch-enemy of all things mechanistic. Given the dichotomy long thought to exist between mechanistic and teleological schools of thought, there is a satisfying irony in discovering veins of apparently ‘mechanistic’ thought within the work of the definitive teleologist. Several waves of scholarship in the past century have argued, from different angles, for mechanistic interpretations of Aristotle’s natural philosophy. The present generation is no exception: in the last decade, Jean De Groot, Monte Johnson, and (...) Tiberiu Popa have variously argued that a mechanistic vein can be found in Aristotle’s work, despite his undeniable teleological credentials. This paper explores the assumptions—some of them open to question—that accompany such advocacy. It will urge some terminological refinements, and turn a skeptical lens on some aspects of these projects. Nonetheless, it will stress that they open promising lines of inquiry, avoiding some of the limitations of earlier ventures into this territory. (shrink)

It is customary to associate the birth of European science with the name of Thales. For example: "In the history of mankind there come moments when new forms of action or thought arise so suddenly that they produce the impression of an explosion. Such is precisely the case with the rise of science—rationalistic scientific knowledge—in Asiatic Greece, in Ionia, at the end of the seventh century B.C.E., with Thales of Miletus and his school".

In the Theaetetus Socrates provides an elaboration and discussion of Protagoras’ measure doctrine, grounding it in a “secret doctrine” of flux. This paper argues that the anthropology of the myth in the Protagoras provides an earlier, very different way to explain the measure doctrine, focusing on its application to civic values, such as “just,” “fine,” and “pious.” The paper shows that Protagoras’ explanation of the dual etiology of virtue – that it is acquired both by nature and by nurture – (...) tracks the two meanings of “anthropos” in his formulation of the measure doctrine, as “humankind” and “individual human.” On Protagoras’ account, humankind’s survival can be explained by the fact that humans share shame and justice, which enables them to live together in cities. (shrink)