"The Sophist" is a philosophical dialogue written by the great ancient Greek thinker Plato. In this book, the author tries to understand the question of the nature of wisdom and its difference from quackery. The dialogue revolves around a conversation between Socrates and the sophists who come to Athens with the intention of showing their wisdom. The book helps readers understand the subjectivity of knowledge and cognition, and also emphasizes the importance of the absence of doctrine in Socrates' teaching. "The Sophist" leaves a deep mark in the hearts of those who seek truth and wisdom.