Does anyone know how to finish the following: "He who knows and knows he knows, is wise - follow him

Does anyone know how to finish the following: "He who knows and knows he knows, is wise - follow him. He who knows not and knows not he knows not, is a fool - shun him. He who knows not and knows he knows not, is a ??? - teach him. He who knows and knows not he knows, is a ??? - ????????????"

• He knows not and knows that he knows not is humble, teach him. He who knows and knows not that he knows is asleep, wake him. My question is: do you know where these lines come from? I thought it was an old chinese proverb, but a work colleague of mine said that it came from the bible!

  Helen Tuffin,