?How much do u know

A person who knows not,
And knows not that he knows not,
Is foolish. Disregard him.
A person who knows not,
And knows that he knows not.
Is simple. Teach him.
A person who knows not,
but believes that he knows
Is dangerous. Avoid him
A person who knows,
But does not know that he knows,
Is asleep. Awake him.
A person who knows,
And knows that he knows'
Is wise. Follow him