James Mackey

Justus Lipsius was a 16th -century renaissance humanist and literary scholar who, crucially for the history of philosophy, was involved in the publication and reinterpretation of Stoic thought, primarily focusing on the works of Seneca. Despite a fair amount of scholarship on Lipsius’s contribution to the history of philosophy, the role of Stoicism in the early to mid-17th century is still not well understood. In this thesis I show, through close examination of Lipsius’s work, that Neo-Stoic ethics in the 17th century amounts to a view about the relationship between providence and human actions. After identifying ways that Stoic philosophy was used to explain this connection, I derive two key normative duties that are constitutive of a Neo-Stoic account of ethics: 1) a duty to accept the determinations of providence (whatever they may be) and 2) the duty to develop a large body of rational knowledge about the universe. In the remainder of this thesis, I map the influence of these Neo-Stoic positions on Rene Descartes, Princess Elisabeth of Bohemia, and Nicolas Malebranche’s moral philosophy. I contend that all these Cartesian-inspired thinkers draw upon the foundational components of Neo-Stoicism in their accounts of ethics. I first consider how the correspondence between Descartes and Elisabeth represents a debate about the viability of certain Neo-Stoic theses. And then, I argue that Malebranche’s moral philosophy should be read as the natural progression of the Neo-Stoic “seeds” planted throughout this correspondence. In developing a conceptual framework for what constitutes a Neo-Stoic position and mapping the influence of this system on prominent Cartesian thinkers, my thesis tells a conceptual story about the history of Stoicism. My thesis particularly seeks to emphasize the way that Stoicism becomes intertwined with the history of 17th century moral philosophy based on the desire of Early Modern figures to balance voluntarist and intellectualist intuitions.