The most important long-term impact of Socrates was what?

The most important long-term impact of Socrates was his method of questioning, also known as the Socratic method, which emphasized critical thinking, self-reflection, and the pursuit of truth. This method has been influential in the fields of philosophy, education, and law, and continues to be studied and used today. Additionally, Socrates' emphasis on the importance of virtue and ethics in individual and social life has had a lasting impact on Western philosophy and culture.