A persistent tradition in metaphysics of mind insists that there is a substantial difference between mind and body. Avicenna’s numerous arguments, for a millennium, have encouraged the view that minds are essentially immaterial substances. In the first part, I redesign and offer five versions of such arguments and then I criticize them. First argument (indivisibility) would be vulnerable in terms of two counterexamples. Second argument (universals) confuses existence with location. Third argument (bodily tools) is less problematic than the first two, (...) though I will say a few words about why it may also not be convincing. Fourth argument (infinity) may not support substance dualism, because, I think, abundance is very different from infinity. Fifth argument (senescence) depends on empirically incorrect premises. Hence, it seems that no Avicennian argument can reasonably save substance dualism. (shrink)

What can we learn about the existence of non-physical entities from close inquiry into special kinds of experiences? Contemporary analytic philosophy has sometimes studied mystic experiences as evidence for the existence of such entities. The article is organized as follows: first, I discuss several distinctions that seem to me to play substantive roles in philosophizing about such experiences. I will then offer and criticize two arguments that support the significance of the experiences. The arguments do not show whether a non-physical (...) entity does or does not exist; they highlight a philosophical framework that can be beneficial to a variety of different approaches. Based on a heuristic strategy, the arguments will focus on the possibility/impossibility of objective representation of non-physical entities. They invite the reader to reflect on deeper philosophical grounds necessary for evaluating any positive or negative claims about the significance/insignificance of such experiences. The first argument rests on contemporary theories and assumptions. The second argument will use notions that drive from Classic Arabic-Persian Philosophy. (shrink)