With PARMENIDES began what is called, in more specific terms, true Philosophy.The Eleatic, and his Poem, constitute a beacon whose light illumined Plato and even Aristotle, and consequently all the philosophers that followed.Parmenides laid down several fundamental philosophical principles:1. The Being as foundation of all the existent2. The principle of identity, Being is identical to itself3. The principle of non-contradiction4. The principle of...