"De Staat" is a Dutch political philosophy book written by Plato in the 4th century BCE. It explores the concept of justice and the ideal state, presenting a vision of a society governed by philosopher-kings. The work discusses the roles of education, the importance of a just society, and the nature of the human soul. In "De Staat," Plato introduces the Allegory of the Cave, illustrating how individuals can be trapped in ignorance. The book emphasizes the need for enlightenment and the pursuit of truth, arguing that only through knowledge can a just and harmonious society be achieved.