Full Idea
Some metaphysicians think the fundamental categories of existence are universals and particulars, while other prefer the division between abstract and concrete.
Gist of Idea
The main categories of existence are either universal and particular, or abstract and concrete
Source
E.J. Lowe (A Survey of Metaphysics [2002], p.15)
Book Reference
Lowe,E.J.: 'A Survey of Metaphysics' [OUP 2002], p.15
A Reaction
Interestingly, in trying to choose between these, it is tempting to think about the capacities of the brain. Which is the cart and which is the horse?