Category: Classical Philosophy

Aristotle’s metaphysics explains change through substance, form, matter, the four causes, and teleology — his direct answer to Plato’s Theory of Forms.

Aristotle’s epistemology builds the Organon — six books of logic taking knowledge from sense perception to demonstrated, universal scientific truth itself.

Aristotle’s philosophy traces his life, his break from Plato’s idealism, and the founding of the Lyceum — the empirical worldview that reshaped Western thought.

Plato’s cosmology explores the Demiurge, the five Platonic solids, and why he believed the universe is ordered by intelligence, not mindless mechanism.

Plato’s political philosophy explains the just state, philosopher-kings, and why five forms of government inevitably decay from wisdom into tyranny itself.

Plato’s theory of the soul divides the psyche into Reason, Spirit, and Appetite — and derives all four cardinal virtues from their proper inner balance.

Explore Plato’s Divided Line and learn how the Sun Analogy, Cave Allegory, and Form of the Good explain knowledge, reality, and philosophical enlightenment.

Plato’s Theory of Forms explains how eternal, unchanging Forms make knowledge, universals, and objective values possible — including the Third Man critique.

Plato’s epistemology proves knowledge is possible, then defines it as Justified True Belief — grounded in unchanging Forms, not senses or mere opinion.

Socrates never wrote a word, yet the Socratic Method he practiced — questioning, exposing false wisdom — still shapes philosophy, ethics, and education today.