Plato
Πλάτων

Plato was an ancient Greek philosopher of Classical Athens who is most commonly considered the foundational thinker of the Western philosophical tradition. An innovator of the literary dialogue and dialectic forms, Plato influenced all the major areas of theoretical philosophy and practical philosophy, and was the founder of the Academy, a philosophical school in Athens where Plato taught the collection of philosophical theories that would later become known as Platonism.— Wikipedia
Works

Κρίτων
Crito

Εὐθύφρων
Euthyphro

Λάχης
Laches (dialogue)
Ἀπολογία Σωκράτους
Apology of Socrates
Λύσις
Lysis (dialogue)

Χαρμίδης
Charmides (dialogue)
Ἴων
Ion (dialogue)
Ἱππίας ἐλάττων
Hippias Minor
Πρωταγόρας
Protagoras (dialogue)
Ἱππίας μείζων
Hippias Major
Εὐθύδημος
Euthydemus (dialogue)
Μένων
Meno

Φαίδων
Phaedo
Γοργίας
Gorgias (dialogue)

Συμπόσιον
Symposium

Πολιτεία
Republic
Φαῖδρος
Phaedrus (dialogue)
Θεαίτητος
Theaetetus
Τίμαιος
Timaeus

Φίληβος
Philebus
Ἐπιστολαί
Epistles
Κριτίας
Critias
Νόμοι
Laws (dialogue)

Διάλογοι
Dialogues