Manuel Fasko

The expression ‘rationalism’ is a historiographical category that refers to a set of views more or less shared by a number of philosophers active in the seventeenth and eighteenth centuries. This period saw the heyday of metaphysical system-building, but the expression ‘rationalism’, as the term is understood in this entry, connotes primarily epistemological commitments. Since the early twentieth century, ‘rationalism’ has typically been presented in contrast with ‘empiricism’. By contrast to so-called ‘empiricism’, which traces (all) knowledge to sensory experience, ‘rationalists’ tend to rely upon the powers of reason to explain and justify what we know. This entry provides an account of the traditional narrative of early modern ‘rationalism’ while also extending that narrative to cover figures from typically under-represented backgrounds who hold commitments that can also plausibly be characterized as ‘rationalist’. The entry thus covers René Descartes (1596–1650), Baruch Spinoza (1632–1677), and Gottfried Wilhelm Leibniz (1646–1716), alongside Anton Wilhelm Amo (1703–1759), Margaret Cavendish (1623–1673), and Anne Conway (1631–1679). The entry also concludes by briefly suggesting future directions for scholarship on early modern rationalism involving the application of rationalist principles in topics such as social and political philosophy, as illustrated through the writings of Sor Juana Inés de la Cruz (1645–1695) and François Poulain de la Barre (1647–1723).

The aim of this paper is twofold. First, I argue that Mary Shepherd has a dispositional understanding of God, matter, and finite minds. That is, she understands all of them as dispositions or powers (two terms I will use interchangeably). Second, I aim to shed light on the emanationist picture suggested by Shepherd’s remarks in her second book Essays on the Perception of an External Universe (EPEU). For instance, Shepherd calls ‘animate’ and ‘inanimate nature’ a divine ‘emanation’ (EPEU 190) and describes finite beings as ‘outgoings’ that come ‘forth’ from God (EPEU 189, 190, 219). Because of this emanationist language, in conjunction with Shepherd’s dispositional understanding of God, matter, and mind, it is helpful to use Jennifer McKitrick’s (2003) distinction between bare and based disposition. For Shepherd’s remarks suggest that the powers that are matter and finite minds are akin to based dispositions because they are caused by and subsist in virtue of God. But since God – ‘THE GREAT FIRST CAUSE’ (ERCE 119) ‘who began not to be’ (EPEU 219) is also a power, the Deity functions similarly to a bare or ungrounded disposition, while matter and finite minds are similar to a ‘based dispositions’ (McKitrick 2003)