I’ve noticed that the unwise people in my life are invariably the ones most eager to share their wisdom. The less wise they are the more aggressive and insistent they are. They seem to believe they know something very wise that others need to know.
But recall the story of the Oracle at Delphi naming Socrates the wisest man in Athens. He was the wisest because he alone understood his own ignorance.
My current understanding of wisdom is this: Wisdom is not a quality of knowledge. It is in an attitude toward knowledge. Wisdom is practical awareness of the essential limits of truth.