One who knows and knows that he knows… his horse of wisdom will reach the skies.
One who knows, but doesn’t know that he knows… he is fast asleep, so you should wake him up!
One who doesn’t know, but knows that he doesn’t know… his limping mule will eventually get him home.
One who doesn’t know and doesn’t know that he doesn’t know… he will be eternally lost in his hopeless oblivion!
The islamic philosopher Ibn Yami categorised human beings according to their knowledge as above. He tells us that the act of acquiring knowledge is as important as what we already know.
In the 1950s two psychologists, Joseph Luft and Harrington Ingham, developed the Johari Window, a method to help people evaluate what they think about themselves in contrast with what others think of them.