Related:

• He who knows nothing doubts nothing. Italian Proverb
• He that knows nothing, doubts nothing.
• 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 is rich who owes nothing. French 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.
• Anyone who imagines that all fruits ripen at the same time as the strawberries, knows nothing about grapes.
  -- Philippus Paracelsu...
• Franklin's Rule Blessed is he who expects nothing, for he shall not be disappointed.