This is a new translation, with introduction, commentary, and an explanatory glossary.

"Sachs's translation and commentary rescue Aristotle's text from the rigid, pedantic, and misleading versions that have until now obscured his thought. Thanks to Sachs's superb guidance, the Physics comes alive as a profound dialectical inquiry whose insights into the enduring questions about nature, cause, change, time, and the 'infinite' are still pertinent today. Using such guided studies in class has been exhilarating both for myself and my students."  ––Leon R. Kass, The Committee on Social Thought, University of Chicago 

Aristotle’s Physics is the only complete and coherent  book we have from the ancient world in which a thinker of the first rank seeks to say something about nature as a whole. For centuries, Aristotle’s inquiry into the causes and conditions of motion and rest dominated science and philosophy. To understand the intellectual assumptions of a powerful world view—and the roots of the Scientific Revolution—reading Aristotle is critical. Yet existing translations of Aristotle’s Physics have made it difficult to understand either Aristotle’s originality or the lasting value of his work.

In this volume in the Masterworks of Discovery series, Joe Sachs provides a new plain-spoken English translation of all of Aristotle’s classic treatise and accompanies it with a long interpretive introduction, a running explication of the text, and a helpful glossary. He succeeds brilliantly in fulfilling the aim of this innovative series: to give the general reader the tools to read and understand a masterwork of scientific discovery. 

In this volume in the Masterworks of Discovery series, Thomas K. Simpson offers readers a chance to watch one of the greatest minds in physics hard at work. In three papers in mathematical physics written between 1855 and 1864, James Clerk Maxwell grappled with his formulation of the theory of the electromagnetic field.

This volume reproduces major portions of the text of Maxwell's classic papers on concepts that are key to both modern physics and the modern world. Through Simpson's engaginbg commentaries and notes and Anne Farrell's illustrations, readers with limited knowledge of math or physics as well as scientists and historians of science will be able to follow the emergence of Maxwell's ideas and to appreciate the magnitude of his achievement. This book includes a long biographical introduction that explores the personal, historical, and scientific context of Maxwell's book.