Abstract

Leibniz maintains that even though God’s intellect contains all possibles, some of these possibles are not compossible. This incompossibility of some possibles is supposed to explain which collections of possibles are possible worlds and why God does not actualize the collection of all possibles. In order to fully understand how this works, we need to establish what precisely Leibniz takes to be the source of incompossibility, that is, which divine attribute or faculty gives rise to the incompossibility of certain possibles. Different interpretations answer this question in different ways. This chapter explores the role that God’s faculties play on some of the standard interpretations of Leibniz’s notion of incompossibility and argues that we are faced with a dilemma: even though incompossibility must somehow arise from God’s faculties, none of the faculties usually distinguished seems up to the task. To escape this dilemma, we need to revise the traditional understanding of the divine faculties. More specifically, we need to recognize wisdom as an attribute that is distinct from intellect, power, and will and that is the source of incompossibility.