What are Plato's theories on ruling?

Plato believed in the concept of a philosopher-king, where rulers should be individuals who possess wisdom, knowledge, and a deep understanding of the forms. He argued that philosophers, with their love of wisdom, are the most suited to govern because they pursue the truth and are not driven by their own personal interests. Plato's ideal state in "The Republic" is based on a hierarchical structure with philosopher-kings at the top, leading to a just and harmonious society.