Aristotle is the philosopher known for his work in ethics and politics during the classical period. A student of Plato, Aristotle developed comprehensive theories that explored the nature of virtue, the moral character of individuals, and the ideal structures of governance. His Nicomachean Ethics emphasizes the pursuit of virtue as the path to a good life, while Political Philosophy examines various forms of government, advocating for a balanced system that promotes the common good. His ideas significantly influenced Western thought across disciplines, including political theory, ethics, and natural sciences, and continue to hold relevance today.