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• I taught him everything he knows!
• I may have taught you everything you know, but I haven't taught you everything I know.
• A fool knows everything and nothing.
• Hire a college student while he still knows everything!
• Scouting taught me everything I know about knots.
• He knows nothing; and he thinks he knows everything.
  That points clearly to a political career. SHAW...
• He knows nothing and thinks he knows everything. That points clearly to a political career.
  --George Bernard Shaw...
• 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.