A philosopher is a person who seeks to understand fundamental questions about existence, knowledge, values, reason, and reality. They explore ideas and concepts through critical thinking and logical reasoning. Philosophers often engage in discussions about ethics, politics, and the nature of the mind, contributing to various fields such as ethics, metaphysics, and epistemology. Philosophers can be found throughout history, with notable figures like Socrates, Plato, and Aristotle shaping Western thought. They use methods like dialogue and debate to challenge assumptions and encourage deeper understanding. Their work influences many areas, including science, art, and religion.