This anthology is about the signal change in Leibniz’s metaphysics with his explicit adoption of substantial forms in 1678-79. This change can either be seen as a moment of discontinuity with his metaphysics of maturity or as a moment of continuity, such as a passage to the metaphysics from his last years. Between the end of his sejour at Paris and the first part of the Hanover period, Leibniz reformed his dynamics and began to use the theory of corporeal substance. (...) This book explores a very important part of the philosophical work of the young Leibniz. Expertise from around the globe is collated here, including Daniel Garber’s work based on the recent publication of Leibniz's correspondence from the late 1690s, examining how the theory of monads developed during these crucial years. Richard Arthur argues that the introduction of substantial forms, reinterpreted as enduring primitive forces of action in each corporeal substance, allows Leibniz to found the reality of the phenomena of motion in force and thus avoid reducing motion to a mere appearance. Amongst other themes covered in this book, Pauline Phemister’s paper investigates Leibniz’s views on animals and plants, highlighting changes, modifications and elaborations over time of Leibniz’s views and supporting arguments and paying particular attention to his claim that the future is already contained in the seeds of living things. The editor, Adrian Nita, contributes a paper on the continuity or discontinuity of Leibniz’s work on the question of the unity and identity of substance from the perspective of the relation with soul and mind. (shrink)

“The problem of universals” in general is a historically variable bundle of several closely related, yet in different conceptual frameworks rather differently articulated metaphysical, logical, and epistemological questions, ultimately all connected to the issue of how universal cognition of singular things is possible. How do we know, for example, that the Pythagorean theorem holds universally, for all possible right triangles? Indeed, how can we have any awareness of a potential infinity of all possible right triangles, given that we could only (...) see a finite number of actual ones? How can we universally indicate all possible right triangles with the phrase ‘right triangle’? Is there something common to them all signified by this phrase? If so, what is it, and how is it related to the particular right triangles? The medieval problem of universals is a logical, and historical, continuation of the ancient problem generated by Plato's (428-348 B.C.) theory answering such a bundle of questions, namely, his theory of Ideas or Forms. (shrink)

Discussions of immortality in the Middles Ages tend to focus on the nature of the rational soul and its prospects for surviving the death of the body. The question of how medieval figures expected to experience everlasting life—what I will be calling the phenomenology of immortality—receives far less attention. In this paper, I explore the range of these expectations during a relatively narrow but intensely rich temporal and geographical slice of the Middle Ages (the thirteenth and fourteenth centuries in the (...) ‘Latin Christian West’). In section 1, I sketch the two central accounts of the rational soul and human nature (inspired by the Platonist and Aristotelian traditions) that set the metaphysical parameters for medieval discussions of our experience of the afterlife. In section 2, I address accounts that involve transcending the soul’s experiences of itself as an individual. In section 3, I turn to views that emphasize the embodied aspect of human existence and depict our unending union with God in affective and physical terms. In section 4, I argue that the views discussed in 2 and 3 form endpoints of an ‘experiential continuum of immortality’ that provides important context for scholastic accounts of immortality as well as expanding the traditional narrative of medieval philosophy. (shrink)