What is Knowledge?🤔

This evening an interesting incident  happened. I politely told a person that what he was doing was wrong. He immeadiately reacted and shouted at me”I know what I know and you need not correct me. “.This incident gave birth to this present post.           Knowledge is not knowing what you know.
But it is knowing what you do not know .As long as you know what you do not know you will continue to be a student . The moment your Ego unfolds the  thought that you know what you know ,you cease  to be a student and you reach a blind  end in the corridors of  learning.Indeed I am playing with words in this post to confuse you but the offspring to confusion is clarity🤣