The Well-Ordered Universe argues that Cavendish's natural philosophy, social and political philosophy, and medical theory share an underlying concern with order. This reveals interesting connections among Cavendish's natural philosophy and her views on gender, animals and the environment, and human health, and explains her commitment to monarchy and social hierarchy.

This guide leads readers systematically through the arguments of Mary Shepherd's two books. Chapters 1-4 cover the arguments in the Essay Upon the Relation of Cause and Effect (1824), where Shepherd argues that causal principles can be known by reason to be necessary truths and that causal inferences can be rationally justified. Shepherd's primary target in this work is Hume, but she also addresses the views of Thomas Brown and William Lawrence. Shepherd considered her second book, Essays on the Perception (...) of an External Universe, and Other Subjects Connected with the Doctrine of Causation (1827), to be an extension of the earlier project on causation; here she appeals to the causal principles established in the first book to argue that we can know through reason that an external world of continually-existing objects must exist independently of us, as the causes of our sensations. Chapter 5 of this Guide addresses Shepherd's accounts of sensation and reasoning; Chapters 6-9 lead the reader through the arguments of the Essays, as well laying out Shepherd's views on skepticism and Berkeleyan idealism, her accounts of mind and body, her philosophy of religion, and the solutions she offers to two puzzles about vision. (shrink)

The concept of innateness is central to Descartes's epistemology; the Meditations display a new, non-Aristotelian method of acquiring knowledge by attending properly to our innate ideas. Yet understanding Descartes's conception of innate ideas is not an easy task, and some commentators have concluded that Descartes held several distinct and unrelated conceptions of innateness. In Descartes on Innate Ideas, Deborah Boyle argues that Descartes's remarks on innate ideas in fact form a unified account. Addressing the further question of how Descartes thinks (...) innate ideas are known, the author shows that, for Descartes, thinkers have implicit knowledge of their innate ideas. Thus she shows that the actual perception of these innate ideas is, for Descartes, a matter of making them explicit, turning the intellect away from sense-perceptions and toward pure thought. The author also provides a new interpretation of the Cartesian "natural light," an important mental faculty in Descartes's epistemology. (shrink)

Descartes is often accused of lacking a coherent conception of innate ideas. I argue that Descartes' remarks on innate ideas actually form a unified account. "Innate idea" is triply ambiguous, but its three meanings are interdependent. "Innate idea" can mean an act of perceiving; that which is perceived; or a faculty, capacity, or disposition to have certain ideas. An innate idea qua object of thought is some thing existing objectively , which we have a capacity to perceive, but which we (...) can only actually perceive through meditation. ;Descartes thinks that some innate ideas, such as the idea of thought itself, are implicit in the very process of thinking. Because they are relied on in thinking itself, we have implicit awareness of them. We also have implicit knowledge of other ideas contained in them. The actual perception of these innate ideas is, for Descartes, a matter of making them explicit, turning the intellect away from sense-perceptions and towards pure thought. ;Some innate truths, Descartes says, are perceived by the "natural light." I argue that such truths are made explicit through attending to how the concepts which those truths are about have been relied on in the process of thinking. I discuss the relationship between the natural light and the will, arguing that other accounts of Descartes' "natural light" in the secondary literature are unsatisfactory. I also explore how Descartes' use of the metaphor of light might have been informed by his scientific views about light. ;The innate ideas of corporeal nature and mathematics are also made explicit through attention and reflection, according to Descartes. Though many commentators read Descartes as holding that the innate idea of extension can be known without any use of the senses, I argue that it is discovered through reflection on our sense-perceptions. Once this idea is explicit, Descartes thinks, we can use it to generate explicit awareness of further innate ideas, such as ideas of shapes. Reflection on those further innate ideas, in turn, makes explicit various innate truths about those shapes. (shrink)