Plato was born around the year 427-347 BCE in Athens, he was Socrates' student, creating the idea of fundamental conflicts between what could be known by reason and what could be known by senses. Plato's most famous writings include the "Republic", where we can learn about his beliefs including ethics, political philosophy, moral psychology, epistemology, and metaphysics. The Metaphor of the Divided Line also created by Plato represents the levels of knowledge one can obtain. From this metaphor comes the Forms, and how the understanding of this Forms and applying them will help society. In his theory Allegory of the cave he explains the reason why society needs to be educated, sees the good in people and says the "bad" actions one commits are not necessarily bad but pure ignorance to which can be changed by education. Plato's philosophy was influential to many of his students and during the history of Western philosophy. .
Plato subscribes to the concept that the ultimate state of a thing is in its form. In this place it is eternal, finite, never changing, and, in turn something that can never be known. Plato's focus was on the idea of a thing as its highest reality. Considering the non-physical the highest intelligible form of ultimate reality. The two forms of reality he talks about are; the world of becoming and the world of being. The world of becoming is physical and perceived through our senses and experiences, this world is always changing. It is where the objects in our mind create ideas and ideals appearing to our senses as "true" reality, to which Plato calls this the lowest form of reality. Facts are not certain in this world because what you see might not be real, these could be your imaginations and beliefs. Plato concerns himself with the unattainable, eternal, never changing form of a thing which holds no place in the ever-changing reality we live in.
