Abstract

On Berkeley’s immaterialist ontology, there are only two kinds of created entities: finite spirits and ideas. Ideas are passive, and so there is no genuine idea-idea causation. Finite spirits, by contrast, are truly causally active on Berkeley’s view, in that they can produce ideas through their volitional activity. Some commentators have argued that this account of causation is inconsistent. On their view, the unequal treatment of spirits and ideas is unfounded, for all that can be observed in either case are mere patterns of regularity; Berkeley should therefore adopt a full-blown occasionalism and follow Malebranche in holding that God is the only true cause. Other commentators have argued that Berkeley denies the tenet that causes necessitate their effects – that is, the idea that causation involves necessary connection – and that in this way he can avoid inconsistency. This paper argues that Berkeley can subscribe to the thesis that finite spirits are truly causally active without falling into inconsistency, even if it is granted that Berkeleyan causes necessitate their effects. His differing treatment of spirits and of ideas is well founded, since ideas are transparent in a way our notions of spirits are not.