Robert K. Garcia

I critically examine the view that Descartes’s independence conception of substance plays a crucial role in his “separability argument” for substance dualism. I argue that IC is a poisoned chalice. I do so by considering how an IC-based separability argument fares on two different ways of thinking about principal attributes. On the one hand, if we take principal attributes to be universals, then a separability argument that deploys IC establishes a version of dualism that is unacceptably strong. On the other hand, if we take principal attributes to be tropes, then IC introduces challenges that undermine the argument. This is partly because the assumption of tropes makes it possible to distinguish several versions of substance dualism, versions that differ with respect to their degree of generality. I argue that taking principal attributes to be tropes makes it challenging to establish any of these versions by way of an IC-based separability argument. I conclude the paper by suggesting a way forward for the proponent of the separability argument.

Postmodemism's censure of metanarratives expresses a moral claim and moral concern about those who have spawned injustice in the name of Truth. Ironically, while this censure is an indictment against the historic failures of the Christian church, it is also a corroboration of Christian theology. On postmodernism, a moral claim must be understood either instrumentally (emotivism or prescriptivism) or ideally (subjectivism or intersubjectivism), and neither is adequate. Rather, the moral claim requires moral realism. Moral realism, however, is best explained by theism. While sharing many of postmodemism's moral concerns, theism—especially Christian theism—can best enable and satisfy these concerns, whereas postmodernism can only frustrate them. Thus, theism uniquely enables moral accountability, communication, and tolerance. Moreover, Christian theism, in virtue of the incarnation, crucifixion, and resurrection of Jesus, uniquely redeems moral concerns from futility and offers hope to those concerned for justice.