Journal of the History of Philosophy

This paper argues that Kant's model of causality cannot consist in one temporally determinate event causing another, as Hume had thought, since such a model is inconsistent with mutual interaction, to which Kant is committed in the Third Analogy. Rather causality occurs when one substance actively exercises its causal powers according to the unchanging grounds that constitute its nature so as to determine a change of state of another substance. Because this model invokes unchanging grounds, one can understand how Kant could have thought that causal laws could be justified. Further, because this model, along with the broader ontology it presupposes, is radically different from Hume's, Kant's Second Analogy cannot be understood as a refutation of Hume's position on Hume's own terms; instead, Kant must be proposing an alternative view that competes against Hume's thoroughgoing empiricist account.