Abstract

The paper investigates relations between the notions of intentionality and cognition in medieval philosophy. (The investigation is restricted to Latin works written between ca. 1240–1320, mainly those by Albert the Great, Thomas Aquinas, Giles of Rome, John Duns Scotus, and Peter Auriol.) It is argued that two different conceptions of intentionality (or esse intentionale) were endorsed by medieval philosophers. In the first conception (called “Aristotelian” here) “to be intentional” is a physical property of the form insofar as abstracted from the matter. On the contrary, the proponents of the second conception (called “Scotistic”) ascribe the property of being intentional to the objects insofar as they are grasped by a cognitive act. Further, it is argued and documented (against some Thomistic commentators) that only the second notion of intentionality relates to the notion of cognition. Esse intentionale in the first meaning, as demonstrated here, is neither sufficient nor even necessary condition of being cognitive.