The book "Protagoras" by the ancient philosopher Plato is a dialogue that provokes the reader to think about the concepts of justice, morality and knowledge. The main characters, Socrates and Protagoras, conduct heated discussions about the nature of good, evil and the influence of society on the formation of human values. This book leaves behind many questions that leave their traces in the heart and mind of the reader, helping to better understand complex philosophical issues. "Protagoras" is an eternal classic that never loses its relevance and value.