Unlike his mentor Socrates, Plato was both a writer and a teacher. His writings are in the form of dialogues, with Socrates as the principal speaker. In the Allegory of the Cave, Plato described symbolically the predicament in which mankind finds itself and proposes a way of salvation. The Allegory presents, in brief form, most of Plato's major philosophical assumptions: his belief that the world revealed by our senses is not the real world but only a poor copy of it, and that the real world can only be apprehended intellectually; his idea that knowledge cannot be transferred from teacher to student, but rather that education consists in directing student's minds toward what is real and important and allowing them to apprehend it for themselves; his faith that the universe ultimately is good; his conviction that enlightened individuals have an obligation to the rest of society, and that a good society must be one in which the truly wise (the Philosopher-King) are the rulers.
The Allegory of the Cave can be found in Book VII of Plato's best-known work, The Republic, a lengthy dialogue on the nature of justice. Often regarded as a utopian blueprint, The Republic is dedicated toward a discussion of the education required of a Philosopher-King.
The following selection is taken from the Benjamin Jowett translation (Vintage, 1991), pp. 253-261. As you read the Allegory, try to make a mental picture of the cave Plato describes. Better yet, why not draw a picture of it and refer to it as you read the selection. In many ways, understanding Plato's Allegory of the Cave will make your foray into the world of philosophical thought much less burdensome.
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[Socrates] And now, I said, let me show in a figure how far our nature is enlightened or unenlightened: --Behold! human beings living in a underground cave, which has a mouth open towards the light and reaching all along the cave; here they have been from their childhood, and have their legs and necks chained so that they cannot move, and can only see before them, being prevented by the chains from turning round their heads. Above and behind them a fire is blazing at a distance, and between the fire and the prisoners there is a raised way; and you will see, if you look, a low wall built along the way, like the screen which marionette players have in front of them, over which they show the puppets. [Glaucon] I see.
[Socrates] And do you see, I said, men passing along the wall carrying all sorts of vessels, and statues and figures of animals made of wood and stone and various materials, which appear over the wall? Some of them are talking, others silent. [Glaucon] You have shown me a strange image, and they are strange prisoners. [Socrates] Like ourselves, I replied; and they see only their own shadows, or the shadows of one another, which the fire throws on the opposite wall of the cave? [Glaucon] True, he said; how could they see anything but the shadows if they were never allowed to move their heads? [Socrates] And of the objects which are being carried in like manner they would only see the shadows? [Glaucon] Yes, he said.
[Socrates] And if they were able to converse with one another, would they not suppose that they were naming what was actually before them? [Glaucon] Very true.
[Socrates] And suppose further that the prison had an echo which came from the other side, would they not be sure to fancy when...