Simone Weil (1909-1943) was a defining figure of the twentieth century; a philosopher, Christian, resistance fighter, anarchist, feminist, Labour activist and teacher. She was described by T. S. Eliot as 'a woman of genius, of a kind of genius akin to that of the saints', and by Albert Camus as 'the only great spirit of our time'. Originally published posthumously in two volumes, these newly reissued notebooks, are among the very few unedited personal writings of Weil's that still survive today. Containing her thoughts on art, love, science, God and the meaning of life, they give context and meaning to Weil's famous works, revealing an unique philosophy in development and offering a rare private glimpse of her singular personality.

One of the most original political thinkers of the Enlightenment, Montesquieu utilized his passionate belief in toleration and the moral benefits of science to construct a naturalistic system of political science based on the study of history, comparative government, and human behavior. This volume reveals Montesquieu's purpose by exploring the range of his literary output, focusing on his scandalous novel, The Persian Letters (1721), his philosophical history, Considerations on the Greatness and Decline of the Romans (1734), and his magnum opus, The Spirit of the Laws (1748).

The essays in this volume form a commentary on Descartes' Meditations . Following the sequence of the meditational stages, the authors analyze the function of each stage in transforming the reader, to realize his essential nature as a rational inquirer, capable of scientific, demonstrable knowledge of the world. There are essays on the genre of meditational writing, on the implications of the opening cathartic section of the book on Descartes' theory of perception and his use of skeptical arguments; essays on the theory of ideas and their role of Descartes' reconstructive analytic method; essays on the proofs for the existence of God, on the role of the will in the formation and malformation of judgments; and the essays on the foundations of the science of extension and on Descartes' account of the union of mind and body.