Who is primarily known for focusing on ethics and did not charge tuition for his teachings?

Socrates is primarily known for his emphasis on ethics and moral philosophy. He sought to understand the nature of virtue and how individuals should live ethically in society. Unlike many of his contemporaries, Socrates did not charge for his teachings; he believed that knowledge and learning should be accessible to all. His method of inquiry, known as the Socratic method, involved asking probing questions to stimulate critical thinking and illuminate ideas, particularly regarding ethical issues.

Socrates famously engaged in discussions in public spaces, encouraging dialogue about moral and philosophical questions, which helped shape Western philosophical thought. His approach contrasted with later philosophers like Plato and Aristotle, who operated within more formal educational constructs. Socrates' focus on ethics and his commitment to teaching without remuneration highlight his belief in the importance of fostering virtuous behavior rather than profit from knowledge.