Muslim and Jew

Everyone thinks himself perfect in intellect and his child in beauty.
  A Jew was debating with a Muslim Till I shook with laughter at their dispute. 
  The Muslim said in anger: ‘If this deed of mine Is not correct, may God cause me to die a Jew.’
   The Jew said: ‘I swear by the Pentateuch That if my oath is false, I shall die a Muslim like thee’. 
  Should from the surface of the earth wisdom disappear Still no one will acknowledge his own ignorance