The Ion is the shortest, or nearly the shortest, of all the writings which bear the name of Plato, and is not authenticated by any early external testimony. The grace and beauty of this little work supply the only, and perhaps a sufficient, proof of its genuineness. The plan is simple; the dramatic interest consists entirely in the contrast between the irony of Socrates and the transparent vanity and childlike enthusiasm of the rhapsode Ion. The theme of the Dialogue may possibly have been suggested by the passage of Xenophon's Memorabilia in which the rhapsodists are described by Euthydemus as 'very precise about the exact words of Homer, but very idiotic themselves.' (Compare Aristotle, Met.)
Plato (Greek: Πλάτων), born Aristocles (c. 427 – 348 BC), was an ancient Greek philosopher of the Classical period who is considered a foundational thinker in Western philosophy and an innovator of the written dialogue and dialectic forms. He raised problems for what became all the major areas of both theoretical philosophy and practical philosophy, and was the founder of the Platonic Academy, a philosophical school in Athens where Plato taught the doctrines that would later become known as Platonism. Plato's most famous contribution is the theory of forms (or ideas), which has been interpreted as advancing a solution to what is now known as the problem of universals. He was decisively influenced by the pre-Socratic thinkers Pythagoras, Heraclitus, and Parmenides, although much of what is known about them is derived from Plato himself. Along with his teacher Socrates, and Aristotle, his student, Plato is a central figure in the history of philosophy. Plato's entire body of work is believed to have survived intact for over 2,400 years—unlike that of nearly all of his contemporaries. Although their popularity has fluctuated, they have consistently been read and studied through the ages. Through Neoplatonism, he also greatly influenced both Christian and Islamic philosophy. In modern times, Alfred North Whitehead famously said: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato."