What ran through all philosophical study during Greece Classical Period?

During the Classical Period in ancient Greece, the pursuit of knowledge and wisdom was characterized by a focus on ethics, metaphysics, epistemology, and politics. Philosophers like Socrates, Plato, and Aristotle explored questions about the nature of reality, the purpose of life, the concept of justice, and the nature of knowledge. These thinkers laid the foundation for Western philosophy and their ideas continue to influence scholarly thought today.