He exaggerates the situation by claiming that poetry has the power to corrupt even the best of men with its seductive melodies drawing us into an emotional identification with the characters it portrays in a way that threatens the use of reason, since surrendering to our emotions is so intensely pleasurable. Because of this, Plato sees it compulsory to banish literature from his ideal society.
However, this behaviour just looks like breaking all the mirrors so as not to see our ugly faces; because poetry is like a mirror that shows human soul, which is such a complex thing that it shelters all the evils and goods of the world inside itself. Contrary to Plato’s idea that literature only adheres to the inferior part of the human soul, the function of literature is to show human beings their soul, which is made up of both good and evil. Its ultimate aim is to make us change by showing us the evil sides of our soul, just as the mirror, which forces us to change our appearance by showing us the stains and pimples on our face.
Aristotle, Plato’s student, implicitly rebuilds the broken mirror. His Poetics, the first work of theoretical criticism devoted specifically to poetry in the Western tradition, intended to investigate the nature of poetry through the classification of its different kinds and the analysis of their function and purpose. Besides defending that literature should imitate both evil and good, Aristotle gives it a role more than a mirror of the human soul. According to him, poetry is like a magic mirror, showing what may happen besides what is happening, which gives us a generalized view of human nature from which we can learn more than we can from particular facts. From this perspective, Aristotle sees literature closer to philosophy than history, contrary to his teacher considering literature as the enemy of philosophy.
We can extend this idea. Literature is a source for sociology, anthropology, psychology, and all sciences dealing with human nature because literature expresses human soul (what it did, what it does and what it can do). When you read Hamlet, philosophically you question revenge, sociologically you see the royal lifestyle, anthropologically you see a European race and psychologically you witness the tide in the mind of a young prince who has to take revenge. Many literary texts express this depth of knowledge reflected in Shakespeare’s play.
Literature is not simply inspiration, contrary to Plato’s argument. As the Roman philosopher Horace says in his Art of Poetry, a person who is prepared to produce a work of literature should ‘aim either to benefit or to please, or to combine the giving of pleasure with some useful precepts for life.’ Horace emphasized the complex structure of literature and defended that it was not an amateur job depending on mere inspiration, but an interdisciplinary field of study, which required intense education on it, as it aims both to delight and instruct. He knew that the function of literature was to make the society see itself on the mirror of the art and change the corrupted sides of it.
Literature has proved its power to change its society throughout history. The Ancient Greek literature, which includes Homer, Aristophanes, Sophocles, Euripides, Aeschylus and also Plato and Aristotle, tore apart the curtains upon intellectual thinking in medieval Europe and saved it from the scholastic thinking of the church, by opening a new era called ‘Renaissance’. Europeans learned rationalist thinking and philosophy from Ancient Greeks, who wrote a bunch of literary works on the meaning of the world and nature, such as Homer’s Iliad and Odyssey, which represent the entire Greek mythology.
Similarly, the literary works Candide by Voltaire and Emile by J.J. Rousseau have been highly influential in the outbreak of the French Revolution. These great philosophers used the power of literature in order to provoke the oppressed classes. In addition, among the powerful literary works throughout history, we can consider Joseph Conrad’s Heart of Darkness, which awakened an anti-colonialist thinking in the West; Harriet Beecher Stowe’s Uncle Tom’s Cabin, which helped create a revulsion against slavery that made possible the American Civil War; George Orwell’s Animal Farm, which showed people the real face of communism; and also we can add Chinua Achebe’s Things Fall Apart, which made the world to see the real history of Africa.
We have understood the functions of literature to a great extent, which will help us find the precise definition of literature. Now we can say that a piece of work differs from ordinary writings in having an effect on the reader even to create a revolution in the society by reflecting the present and future state of their soul and giving them a chance to correct their faults, just like cleaning a stain on your face after looking at the mirror. When combined with a perfect usage of language, this piece of work would have the right to be classified as a literary text.
Classical Literary Criticism, Horace, ‘The Art of Poetry’, page 107, Penguin Classics, introduction, revised translations, new material and notes by Penelope Murray, 2000