John Greco

John Greco is a contemporary philosopher known for his work in epistemology, which is the study of knowledge. He focuses on the debate between internalism and externalism—two views on what justifies our knowledge. Internalists argue that justification depends solely on factors accessible to the thinker, while externalists consider outside factors. Greco is also associated with virtue epistemology, which emphasizes the importance of intellectual virtues—qualities like open-mindedness and intellectual courage—in achieving knowledge. His approach suggests that knowledge is not just about true beliefs, but also about the character traits and skills of the knower.