Good behaviour and high moral character must come first, for unless the
character be trained, acquiring knowledge will only prove injurious. Knowledge
is praiseworthy when it is coupled with ethical conduct and virtuous character;
otherwise it is a deadly poison, a frightful danger. A physician of evil
character, and who betrayeth his trust, can bring on death, and become the
source of numerous infirmities and diseases.
(From a Tablet, translated from the Persian) [60]