Plato. His Life and Philosophical Activity "E. N. Orlova is a book about the legendary ancient Greek philosopher Plato (ancient Greek , 428 BC - 348 BC). Plato is a philosopher whose ideas were formed under the influence of two brilliant teachers of antiquity: Socrates and Aristotle. In his most important work, The State, he stresses the division of the world into reason and sensation, where rational thinking is responsible for knowing the truth, while feelings belong to the material.