427 BC-347 BC
The Republic
, the best known of these many dialogues with Socrates, mentor, as the central character, expounds idealism of noted Greek philosopher Plato and describes a hypothetical utopian state that thinkers rule; he taught and wrote for much his life at the Academy, which he founded near Athens around 386 BC. Platonism, the philosophy of Plato, especially asserts the phenomena of the world as an imperfect and transitory reflection of ideal forms, an absolute and eternal reality.
Aristotle began as a pupil of Plato. Plotinus and his successors at Alexandria in the 3rd century developed Neoplatonism, a philosophical system, based on Platonism with elements of mysticism and some Judaic and Christian concepts. Philosophy of Saint Thomas Aquinascombined Neoplatonism with the doctrines of Aristotle within a context of Christian thought.
This classical mathematician and student started the first institution of higher learning in the western world. Alongside his student, Aristotle, Plato helped to lay the western science.
Plato of the most important western exerted influence on virtually every figure and authored the first comprehensive work on politics. Plato also contributed to ethics, metaphysics, and epistemology. Aristotle, his extremely influential student, also tutored Alexander the Great of Macedonia.