This book is a contribution both to Aristotle studies and to the philosophy of nature, and not only offers a thorough text based account of time as modally potentiality in Aristotle’s account, but also clarifies the process of “actualizing time” as taking time and looks at the implications of conceiving a world without actual time. It speaks to the resurgence of interest in Aristotle’s natural philosophy and will become an important resource for anyone interested in Aristotle’s theory of time, of its relationship to Aristotle’s larger project in the Physics, and to time’s place in the broader scope of Aristotelian natural science. Graduate students and scholars researching in this area especially will find the authors arguments provocative, a welcome addition to other recent publications on Aristotle’s Treatise on Time. ​

What is the relation between time and change? Does time depend on the mind? Is the present always the same or is it always different? Aristotle tackles these questions in the Physics, and Time for Aristotle is the first book in English devoted to this discussion. Aristotle claims that time is not a kind of change, but that it is something dependent on change; he defines it as a kind of 'number of change'. Ursula Coope argues that what this means is that time is a kind of order (not, as is commonly supposed, a kind of measure). It is universal order within which all changes are related to each other. This interpretation enables Coope to explain two puzzling claims that Aristotle makes: that the now is like a moving thing, and that time depends for its existence on the mind. Brilliantly lucid in its explanation of this challenging section of the Physics, Time for Aristotle shows his discussion to be of enduring philosophical interest.

This book investigates what change is, according to Aristotle, and how it affects his conception of being. Mark Sentesy argues that the analysis of change leads Aristotle to develop first-order metaphysical concepts such as matter, potency, actuality, sources of being, epigenesis, and teleology. He shows that Aristotle’s distinctive ontological claim—that being is inescapably diverse in kind—is anchored in his argument for the existence of change. Aristotle may be the only thinker to propose a noncircular definition of change. With his landmark argument that change did, in fact, exist, Aristotle challenged established assumptions about what it is and developed a set of conceptual frameworks that continue to provide insight into the nature of reality. This groundbreaking work on change, however, has long been interpreted through a Platonist view of change as unreal. By offering a comprehensive reexamination of Aristotle’s pivotal arguments, and establishing his positive ontological conception of change, Sentesy makes a significant contribution to scholarship on Aristotle, ancient philosophy, the history and philosophy of science, and metaphysics.

This book examines the birth of the scientific understanding of motion. It investigates which logical tools and methodological principles had to be in place to give a consistent account of motion, and which mathematical notions were introduced to gain control over conceptual problems of motion. It shows how the idea of motion raised two fundamental problems in the 5th and 4th century BCE: bringing together being and non-being, and bringing together time and space. The first problem leads to the exclusion of motion from the realm of rational investigation in Parmenides, the second to Zeno's paradoxes of motion. Methodological and logical developments reacting to these puzzles are shown to be present implicitly in the atomists, and explicitly in Plato who also employs mathematical structures to make motion intelligible. With Aristotle we finally see the first outline of the fundamental framework with which we conceptualise motion today.

The two studies, "Indivisible Magnitudes," and “Aristotle and Epicurus on Voluntary Action,” explain two doctrines in the philosophy of Epicurus, first by a detailed examination of the ancient Greek and Latin texts which describe them, and second by showing how earlier Greek philosophy gave rise to the problems Epicurus tackled. Originally published in 1967. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

This study is the first comprehensive analysis of the physical theory of the Islamic philosopher Avicenna (d. 1037). It seeks to understand his contribution against the developments within the preceding Greek and Arabic intellectual milieus, and to appreciate his philosophy as such by emphasising his independence as a critical and systematic thinker. Exploring Avicenna’s method of "teaching and learning," it investigates the implications of his account of the natural body as a three-dimensionally extended composite of matter and form, and examines his views on nature as a principle of motion and his analysis of its relation to soul. Moreover, it demonstrates how Avicenna defends the Aristotelian conception of place against the strident criticism of his predecessors, among other things, by disproving the existence of void and space. Finally, it sheds new light on Avicenna’s account of the essence and the existence of time. For the first time taking into account the entire range of Avicenna’s major writings, this study fills a gap in our understanding both of the history of natural philosophy in general and of the philosophy of Avicenna in particular. This monograph has been awarded the annual BRAIS – De Gruyter Prize (Kulturpreis Bayern) in the Study of Islam and the Muslim World and the Iran World Award for Book of the Year (2020).