Plato defined justice in the individual soul through an analogy of justice in a city. In a just city, justice takes form of just institutions and laws and just relations among the city's residents (Barker, p254). Its legal systems will not discriminate unfairly among citizens; nor will a small wealthy class enjoy disproportionate power. The justice of the city will consist in internal relations, whether between two individuals or between one individual or the city as a whole.