imagines an ideal city named Kallipolis, ruled by a class of philosopher kings. The Republic sets out a system that would categorize citizens into a rigid class structure of "golden", "silver", and "bronze" classes. The golden citizens are trained in a rigorous 50-year-long educational program to be "philosopher kings". The city is designed to avoid both extreme wealth and poverty. The educational program for the rulers is the central notion of the proposal.

During the 16th century, Thomas More's