He who knows not and knows not that he knows not is a fool. Shun him.
He who knows not and knows that he knows not is a child. Teach him.
He who knows and knows not that he knows is asleep. Wake him.
He who knows and knows that he knows is wise. Listen to him.
— Persian Proverb
deborah parise 
I love this post, i makes you think! If only it was easy to tell who knows and knows they know, and aren’t those that know not but think they know hey?!
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