Höhlengleichnis
Murdoch argues that Plato's concept of the Good applies to and unifies all these ways of learning and practicing the virtues. In her discussion of the concept, she refers to three sections from Plato's "Republic": the Analogy of the Sun, the Analogy of the Divided Line, and the Allegory of the Cave. The concept of Good, Murdoch says, involves perfection, hierarchy, and transcendence, and is both unifying and indefinable. She suggests that "a sort of contemplation of the Good" in the sense of "a turning away from the particular" is possible and "may be the thing that helps most when difficulties seem insoluble". However, this practice is difficult and carries with it the danger that the object of attention might revert to the self.