Assuming that I am human, and my peers are human as well, then it follows that we share something in common. We all seem to share in common the property (humanness), just as a lemon would share the property yellowness with another lemon. But let us look closer at the relationship between lemons for a second. Provided of course that the lemons in question are good and ripe they will have said commonality. So then, …showed first 75 words of 1866 total…

…showed last 75 words of 1866 total…But that still doesn't make sense because a universal being a universal is not something physical, whereas the hand is something physical. So how did the physical molecules act upon a nonphysical thing? (Anyone remember the mind-body problem?) However, this is about the only real problem I can think of; there's no vicious regress at work in this notion. That being the case, I find it far more convincing that universals are Aristotelian in nature.