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• He that knows nothing, doubts nothing.
• He who knows little quickly tells it. Italian Proverb
• He who knows nothing, loves nothing. He who can do nothing understands nothing.
  He who understands nothing is worthless. -- Paracelsu...
• He is rich who owes nothing. French Proverb
• He who knows nothing, knows nothing. But he who knows he knows nothing knows something.
  And he who knows someone whose friend's wife's brother knows nothing, he knows something....
• He who is not impatient is not in love. -- Italian Proverb
• An expert is one who knows more and more about less and less until he knows absolutely nothing about everything.
• An expert is one who knows more and more about less and less until he knows absolutely everything about nothing.