To the memory of Ian McFetridge 1948?1988 The general concern of the essay is with the question of whether cognitive states can be accounted for in naturalistic (i.e. physicalist) terms. An argument is presented to the effect that they cannot. This turns on the idea that cognitive states involve modes of presentation the identity and individuation conditions of which are ineliminably both intentional and intensional and consequently they cannot be accounted for in terms of physico?causal powers. In connection with this (...) the recent attempt by Robert Stalnaker to provide a naturalistic theory of intentionality is examined and rejected. In conclusion it is suggested that a more radical solution to the problem of how to relate cognitive and material phenomena may be available in the pluralistic naturalism of Aquinas (and, perhaps, Wittgenstein). (shrink)