Plato's Dialgoues

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Last Modified: 2025-12-07

Plato was born in 428 BC (or 427 BC).

Charmides

Theme
Temperance (self-control) and whether knowing oneself is the core of virtue.
Notable
Socrates questions Charmides and Critias; every definition of temperance collapses into confusion, and no final answer is reached.

Lysis

Theme
What friendship is, and why we love some people rather than others.
Notable
Socrates talks with two boys, Lysis and Menexenus; he shows that simple ideas of “like loves like” or “opposites attract” don’t quite work.

Laches

Theme
The nature of courage.
Notable
Two generals (Laches and Nicias) try to define courage; Socrates shows that “standing firm in battle” and “wise endurance” are both too narrow.

Protagoras

Theme
Whether virtue can be taught, and whether the virtues are one.
Notable
Socrates debates the celebrity sophist Protagoras; they tangle over a long poem and end up with the idea that all virtues might really be one kind of knowledge.

Euthydemus

Theme
The difference between real philosophy and eristic word-games.
Notable
Two sophists, Euthydemus and Dionysodorus, bombard a youth with absurd tricks; Socrates quietly models a more serious way of caring for the soul.

Cratylus

Theme
Whether names are “naturally right” or just conventions.
Notable
Socrates playfully analyzes Greek words as if their syllables reveal truths, then pulls back and hints that reality outruns language altogether.

Phaedrus

Theme
Love, rhetoric, and the soul.
Notable
Socrates gives two speeches on love, then a great “palinode” with the chariot-soul myth; he contrasts manipulative rhetoric with a true art that cares for souls.

Ion

Theme
Poetic inspiration versus technical knowledge.
Notable
The rhapsode Ion can brilliantly recite Homer yet cannot explain his own skill; Socrates compares poets and performers to a magnetized chain moved by the gods.

Symposium

Theme
The nature and purpose of love (Eros).
Notable
A drinking party produces a series of speeches on love, culminating in Diotima’s “ladder of love,” where the lover climbs from bodies to souls to Beauty itself.

Meno

Theme
Can virtue be taught, and how can we learn anything at all?
Notable
Meno’s paradox (“How do you look for what you don’t know?”) leads to the slave-boy geometry demonstration and the theory of recollection; the dialogue ends in aporia about virtue’s teachability.

Euthyphro

Theme
What piety is.
Notable
Euthyphro is prosecuting his own father; Socrates’ questioning produces the “Euthyphro dilemma” — is the pious loved by the gods because it’s pious, or pious because they love it?

Apology

Theme
Socrates’ defense of his life and mission.
Notable
Socrates answers charges of impiety and corrupting the youth, invokes the Delphic oracle, calls himself a “gadfly” to Athens, and calmly accepts the death sentence.

Crito

Theme
Justice, law, and obedience to the city.
Notable
Crito urges Socrates to escape from prison; Socrates imagines the Laws of Athens speaking and concludes it would be unjust to flee.

Phaedo

Theme
The immortality of the soul and the philosopher’s attitude toward death.
Notable
Socrates offers several arguments for the soul’s immortality, speaks of the Forms, and drinks the hemlock while calmly discussing philosophy with his friends.

Gorgias

Theme
Rhetoric, power, and justice.
Notable
Socrates questions Gorgias, Polus, and Callicles; he argues that doing injustice harms the soul more than suffering it, and that rhetoric without justice is a kind of flattery.

The Republic

Theme
Justice in the soul and in the city; the ideal state.
Notable
Socrates designs a “just city,” introduces philosopher-kings, the tripartite soul, the allegory of the cave, and the Form of the Good, and ends with the myth of Er.

Timaeus

Theme
A cosmic creation story and the structure of the physical world.
Notable
Timaeus describes a divine Craftsman (Demiurge) shaping the cosmos, the World Soul, mathematical elements, and the embedding of human souls in bodies.

Critias

Theme
An unfinished story about ancient Athens and Atlantis.
Notable
Critias recounts how a virtuous prehistoric Athens once fought decadent Atlantis; the dialogue breaks off before the story is completed.

Parmenides

Theme
A searching critique of the theory of Forms and a training in dialectic.
Notable
The elder Parmenides challenges the young Socrates’ account of Forms, then runs through a series of dense exercises on “the One” and “the many.”

Theaetetus

Theme
What knowledge is.
Notable
Socrates and the young mathematician Theaetetus examine three candidates — knowledge as perception, as true belief, and as true belief with an account — and end in honest puzzlement.

Sophist

Theme
What a sophist really is, and how “non-being” can be thought.
Notable
The “Eleatic Stranger” uses methodical divisions to define the sophist and explains non-being as “difference,” allowing falsehood and appearance to make sense.

Statesman

Theme
The nature of the true political expert.
Notable
The Stranger distinguishes the genuine statesman from mere office-holders, compares ruling to weaving together different character types, and criticizes rule by rigid law.

Philebus

Theme
Whether pleasure or knowledge is the highest good.
Notable
Socrates argues that the good life is a measured mixture, with intellect and order ranking above raw pleasures, though some purified pleasures are also honored.

Laws

Theme
A practical lawcode for a “second-best” city when philosopher-kings are not available.
Notable
An unnamed Athenian and two companions design detailed laws for the city of Magnesia, mixing strict regulation with moral “preludes,” and doing without Socrates altogether.