Abstract

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.