《韩非子·说林下》
所以俗话说： 巫咸虽然善于祷告，却不能拔除自己的灾祸；秦医虽然善于治病，却不能针灸好自己的病。 
故谚曰： 巫咸虽善祝，不能自祓也；秦医虽善除，不能自弹也。 
Therefore, the common saying goes: even though Wuxian is good at praying, he is unable to rid himself of his own troubles; even though the Qin doctor is good at treating illnesses, he is unable to cure his own disease with acupuncture.