Final answer:
The trait of the wise man character type is having knowledge that others seek, which serves to offer guidance and moral lessons within the narrative.
Step-by-step explanation:
The wise man character type in literature is often recognized for having knowledge that others seek. This is clear in the example from Plato's Apology, where Socrates is considered wise because he understands that human wisdom is worth little, which is a notable trait of a wise character acknowledging their own limitations. The wise man character is not necessarily one that has supernatural powers, mediates directly between a hero and a villain, or fights the villain. Instead, this character often serves to offer insight, guidance, or moral lessons to other characters within the story, such as in Greek tragedies where the wise man may contribute to the ethical choices and outcomes of the narrative.