The philosophical writings of Lady Mary Shepherd (1777-1847) reveal an astute and lively intellect. In An Essay upon the Relation of Cause and Effect (1824) and Essays on the Perception of an External Universe, and Other Subjects Connected with the Doctrine of Causation (1827), Shepherd engaged critically with the views of Hume, Berkeley, Reid, Stewart, de Condillac, and others, but she also presented an original and carefully argued philosophical system of her own. Highly regarded in her day, Shepherd's work faded into obscurity after her death; this collection of selections from her writings is intended to bring her work back into focus for students and scholars. Selections include her writings about causation, knowledge of the external world, mathematical and physical induction, belief in miracles and God, and mind and body. This volume also includes an 1828 essay Shepherd published on vision.
Deborah Boyle earned a B.A. in Philosophy from Wellesley College, and an M.A. and Ph.D.at the University of Pittsburgh (1999). Her primary research interests are in the history of modern philosophy, especially early modern women philosophers and David Hume. She has published articles on Mary Astell, Margaret Cavendish, Anne Conway, Descartes, and Hume, and is the author of the books Descartes on Innate Ideas (Continuum, 2009) and The Well-Ordered Universe: The Philosophy of Margaret Cavendish (Oxford University Press, 2018).