"It is not enough to have a good mind; it is more important to use it well" René Descartes was a central figure in the scientific revolution of the seventeenth century. In his Discourse on Method he outlined the contrast between mathematics and experimental sciences, and the extent to which each one can achieve certainty. Drawing on his own work in geometry, optics, astronomy and physiology, Descartes developed the hypothetical method that characterizes modern science, and this soon came to replace the traditional techniques derived from Aristotle. Many of Descartes’ most radical ideas—such as the disparity between our perceptions and the realities that cause them—have been highly influential in the development of modern philosophy. This edition sets the Discourse on Method in the wider context of Descartes’ work, with the Rules for Guiding One’s Intelligence in Searching for the Truth (1628), extracts from The World (1633) and selected letters from 1636-9. A companion volume, Meditations and Other Metaphysical Writings, is also published in Penguin Classics.

Of all the works of the man claimed by many as the father of modern philosophy, the MEDITATIONS, first published in 1641, must surely be Rene Descartes' masterpiece. This volume consists of not only a new translation of the original Latin text and the expanded objections and replies, but also includes selected correspondence and other metaphysical writings from the period 1641-49.

Is it possible to be certain of anything? If so, how? The father of modern philosophy and the founder of rational method in philosophical thought, René Descartes (1596–1650) sought the answers to these questions and in doing so, addressed the most important of methods of thinking and understanding truth. In Discourse on Method, he applies a scientific approach to philosophy that comprises four principles: to accept only what reason recognizes as "clear and distinct"; to analyze complex ideas by dividing them into smaller elements; to reconstruct the ideas; and to make accurate and complete enumerations of the data. His Meditations proceed according to this method, exploring the mind/body distinction, the nature of truth and error, the existence of God, and the essence of material things.

By far the most widely used translation in North American college classrooms, Donald A. Cress's translation from the French of the Adam and Tannery critical edition is prized for its accuracy, elegance, and economy. The translation featured in the Third Edition has been thoroughly revised from the 1979 First Edition and includes page references to the critical edition for ease of comparison.

Descartes' Discourse marks a watershed in European thought; in it, the author sets out in brief his radical new philosophy, which begins with a proof of the existence of the self (the famous "cogito ergo sum"). Next he deduces from it the existence and nature of God, and ends by offering a radical new account of the physical world and of human and animal nature. Written in everyday language and meant to be read by common people of the day, it swept away all previous philosophical traditions. This new translation is an ideal introduction to Descartes for the general reader. It is accompanied by a substantial introductory essay from Renaissance scholar Ian Maclean that is designed to provide in-depth historical and philosophical context. The essay draws on Descartes' correspondence to examine what brought him to write his great work, and the impact it had on his contemporaries. A detailed section of notes explain Descartes' philosophical terminology and ideas, as well as historical references and allusions. Any reader can feel comfortable diving in to this classic work of Renaissance philosophical thought.

"Principles of Philosophy is an attempt, by a self-taught genius, to persuade the Yiddish speaking public that philosophy has not lost its central importance vis a vis both religion and science. He does this, first, by identifying religion with philosophy - and he is the first Orthodox rabbi since Maimonides to do so. Next, he argues that philosophical principles, which are broader than those of science, are at the basis of all existence, and that the same principles that account for the organization of matter can account for the varieties of human organization (and disorganization). He argues, finally, that the study of philosophy itself can lead to the weakening of egotism and the strengthening of altruism."--BOOK JACKET.