The famous Greek philosopher known for his teachings on ethics and politics was Aristotle. A student of Plato, Aristotle made substantial contributions to various fields, including philosophy, biology, and political theory. His work emphasized the importance of virtue and ethics in personal and political life, advocating for the concept of virtue ethics. Aristotle's ideas on governance explored various political systems, promoting a balanced approach to democracy and oligarchy. His writings laid the foundation for Western political thought and continue to influence contemporary philosophy and ethics.