As we saw in Porphyry’s quotation in Universalia, he abstained from the fight for the truth about universals. But by referring to the problem only with respect to genera and species, I think that he might have created another problem, a bias in the study of universals that crossed the whole of the Middle Ages and onwards up to our times to befuddle our ignorant minds on the topic — my ignorant mind, at least.
Beginning with Socrates and especially Plato, the “problem of universals” (called universalia by logicians of the Middle Ages) has plagued the history of thought to this day. But what was — or rather, what is — exactly this problem? Is there really a problem? I put this idea in my head that I need to devote myself to this problem, but the truth is that I still do not fully understand its importance. What I would like to be able to do is to convince a complete layman in philosophy that he should be interested in this problem. At the moment, I find that completely impossible. Below, I reproduce some definitions of the problem I found online just to start thinking about it. The road ahead will be arduous, so I’ll start slowly.