Knowra Plato Plato Plato was an ancient Greek philosopher whose dialogues examine the soul, knowledge, justice, and the nature of reality. He founded the Academy in Athens, one of the earliest institutions of higher learning in the Greek world.
Theory of Forms : The view that intelligible Forms are stable realities distinct from changing particulars perceived by the senses. It anchors Plato’s account of what knowledge concerns beyond the changing world.
Republic (Plato) : Plato’s dialogue on justice, the ideal city, education, and the philosopher’s role in government. It presents his most sustained account of justice and political order.
Socrates : An Athenian philosopher known chiefly through accounts by Plato and other ancient writers, who made ethical questioning central to philosophy. He is the central speaker in many Platonic dialogues and Plato’s formative teacher.
Classical Athens : The Greek city-state that became a major center of political life, drama, art, and philosophy in the fifth and fourth centuries BCE. Its civic debates and upheavals form the political world of Plato’s life and writing.
Middle Platonism : A diverse movement of Platonist philosophy that developed from the first century BCE through the third century CE. It shows how later thinkers reworked Plato’s ideas before Neoplatonism.
Platonic epistemology : Plato’s account of knowledge as distinct from opinion and grounded in understanding intelligible realities. It explains why his dialogues repeatedly test whether belief can count as knowledge.
Phaedo : A dialogue by Plato depicting Socrates’ final hours and arguments about the soul’s immortality. It puts Plato’s account of the soul to work in a dramatic setting.
Aristotle : An ancient Greek philosopher who studied at Plato’s Academy before developing influential, distinct approaches to logic, nature, ethics, and politics. His disagreements with Plato clarify the reach and limits of Platonic explanations.
Peloponnesian War : A prolonged conflict between Athens and Sparta and their allies, lasting from 431 to 404 BCE. The war and Athens’ defeat shaped the unstable political climate Plato inherited.
Neoplatonism : A late-antique philosophical tradition that developed Plato’s thought around the hierarchy of the One, Intellect, and Soul. It transformed Platonic themes into a major late-antique metaphysical system.
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