As you might rightly suppose, Rhinos know nothing about the Logic or Perceptions which inform Mataphysics. Still, Parmenides (450 BC or so) is a famous Greek philosopher, known as the Father of Metaphysics. He influenced Aristotle, if you like name-dropping.
The whole business adds up to: Real is Real, and contrariwise, Unreal does not exist. At least that’s how far We have gotten.
Order presupposes disorder which suggests to Us that before that there must have been some order to compare disorder to. We are more of a take-it-or-leave-it species, We Rhinos.