The answer is Plato.
Plato belonged to ancient Greece and is remembered as one of the three great classical philosophers, along with his teacher Socrates and his student Aristotle. Republic, written nearly 2400 years ago, asks a simple but deep question: what does a just society look like?
In the book, Plato imagines an ideal state ruled by philosopher-kings, people chosen not for wealth or birth but for wisdom. He also uses stories, like the cave allegory, to explain how humans often live with limited understanding of the truth. Because of its lasting influence on politics, education, and ethics, Republic remains a standard reference point in general knowledge and civics questions.