Ockham affirms that a human being consists of three really distinct forms that exist in matter, thus defending a «pluralist» position in the debate about the soul. However, he takes a «unitarist» position with regard to the rational soul, claiming that intellect and will are not really distinct. Why does he not admit a plurality of forms in the rational soul as well? And why does he think that the rational soul as a whole is really distinct from the sensory (...) soul? This paper examines these questions, thus analyzing Ockham’s metaphysics of the soul. It pays close attention to his arguments both for a plurality of forms and for the unity of the rational soul. It argues that Ockham carefully distinguishes between forms that are metaphysical parts of a human being, and faculties that are ways of acting of a specific form. This distinction enables him to reject both a radical unitarism that accepts one single form in a human being, and an excessive pluralism that posits as many forms as there are faculties. (shrink)

IT IS SHOWN IN DETAIL THAT RECENT ACCOUNTS FAIL TO DISTINGUISH BETWEEN INTENTIONALITY AND MERELY CAUSALLY DISPOSITIONAL STATES OF INORGANIC PHYSICAL OBJECTS—A QUICK ROAD TO PANPSYCHISM. THE CLEAR NEED TO MAKE SUCH A DISTINCTION GIVES DIRECTION FOR FUTURE WORK. A BEGINNING IS MADE TOWARD PROVIDING SUCH AN ACCOUNT.

What kind of entities are faculties? How are they related to the soul and to the entire living being? How can they be classified? And in what sense are they responsible for a large variety of activities? This chapter examines these questions, which were extensively discussed by scholastic authors, and focuses on the metaphysical models established by William of Auvergne, Thomas Aquinas, William of Ockham, and Francisco Suárez. It argues that there was no unified scholastic doctrine. While some authors (e.g. (...) Ockham) took the faculties to be mere ways of acting of the soul, others (e.g. Suárez) conceived of them as distinct entities with their own power. The latter theory gave rise to a new model of the soul—a model that presented it as a complex entity with many distinct causes. (shrink)

Mediaeval psychological theory was a “faculty psychology”: a confederation of semiautonomous sub-personal agents, the interaction of which constitutes our psychological experience. One such faculty was intellective appetite, that is, the will. On what grounds was the will taken to be a distinct faculty? After a brief survey of Aristotle's criteria for identifying and distinguishing mental faculties, I look in some detail at the mainstream mediaeval view, given clear expression by Thomas Aquinas, and then at the dissenting views of John Duns (...) Scotus and William of Ockham. I conclude with some reflections on why the mainstream mediaeval view was discarded by Descartes. (shrink)

The chapter shows how the issue of free will and determinism arose historically in various traditions of Eastern and Western philosophy. It also shows how the traditional problem of free will has been transformed in modern times as a result of new developments in the sciences and humanistic studies. Four questions are introduced about free will that have come to the fore as a result of these new developments and will be discussed in the remainder of the book: Is free (...) will compatible or incompatible with determinism? Why do we want free will? Can we make sense of an indeterminist or incompatibilist free will? Can such a free will exist in the natural order and if so, how? (shrink)

Power theorists are divided on the question of whether individual powers are single-track (for a single manifestation type) or are multi-track (capable of producing distinct manifestation types for distinct stimuli). EJ Lowe has recently defended single-tracking, arguing that the multi-tracker can provide no adequate reason for treating powers as capable of having multiple manifestation types, and claiming that putative instances of multi-track powers are either single-track powers in need of unifying descriptions or are merely several single-track powers. I respond to (...) Lowe on behalf of the multi-tracker, first by arguing that he overlooks the extra-empirical features of the debate, then by posing a dilemma for any single-track account of powers concerning the single-tracker’s ability to appropriately deal with fine-grained manifestation types. Finally I provide the aforementioned reason for thinking that there are multi-track powers. (shrink)

MEDIEVAL PHILOSOPHERS HAD NO SINGLE RESPONSE to the difficult question of how souls are related to the bodies they animate. In this respect, the theory of psychological inherence advanced by the noted Parisian philosopher John Buridan is a case in point. Buridan offers different accounts of the soul-body relation, depending upon which of two main varieties of natural, animate substance he is explaining. In the case of human beings, he defends a version of immanent dualism: the thesis that the soul (...) is an immaterial, everlasting, and created entity, actually inhering in each and every body it animates, and thus numerically many. But when his explanandum is the relation between nonhuman animal or plant souls and their bodies, Buridan is a materialist; that is, he regards the sensitive and vegetative souls of such creatures as no more than collections of material, extended powers exhaustively defined by their biological functions, and hence as corruptible as the particular arrangements of matter they happen to animate. (shrink)