Socrates uses his allegory of the cave as a device to illustrate the effect of education on the soul. Education allows one to understand greater truths of the world and to dispel the falsities their imagination provided them in their sheltered ignorance of the cave. This enlightenment can only make one understand with increasing confidence that there is a higher source behind life and beauty. There are responsibilities that go hand-in-hand with knowledge though. What is learned must be used to better society and the lives of others. One must pursue truth to understand and become closer to that which is Good. This produces the best men and women and society; the most fit to become tomorrows guardians of the city.