 After quantity, Aristotle discusses the category of relatives, which both interpretively and philosophically raises even more difficulties than his discussion of quantity. A contemporary philosopher might naturally think that this category contains what we would nowadays call ‘relations’. But this would be a mistake. The name for the category is ta pros ti (τὰ πρός τι), which literally means ‘things toward something’. In other words, Aristotle seems to be classifying not relations but rather things in the world in so far as they are toward something else. It would seem, however, that for Aristotle things are toward something else insofar as a relational predicate applies to them. Aristotle says: Things are called ‘relative’ if as such they are said to be of something else or to be somehow referred to something else. So, for instance, the greater, as such, is said to be of something else, for it is said to be greater than something (6a36).