Platonism, also known as the Philosophy of Plato, is one of the most influential and enduring schools of thought in the history of Western philosophy. It is based on the teachings and ideas of the Greek philosopher Plato, who lived in the 4th century BC. Plato’s works, particularly his dialogues, are the main source of our understanding of Platonism. At its core, Platonism is a metaphysical and epistemological theory that seeks to understand the nature of reality and knowledge.