"Philosopher Kings" is a concept introduced by the ancient Greek philosopher Plato in his work, "The Republic." It suggests that the most just and effective rulers should be philosophers, as they possess wisdom and knowledge about the true nature of justice and the good life. According to Plato, these rulers would prioritize the well-being of the state and its citizens over personal gain. In this ideal society, philosopher kings would be trained in philosophy, mathematics, and dialectics, enabling them to make informed decisions. Plato believed that only those who understand the Forms, especially the Form of the Good, could govern wisely and justly, leading to a harmonious and prosperous society.