《宋史·列传·卷九十六》
范镇上奏说： 由于我没有才能，使陛下废弃法令制度，这是官吏失职，请求解除我的知通进银台司职务。 
镇奏曰： 由臣不才，使陛下废法，有司失职，乞解银台司。 
Fan Zhen memorialized the emperor: "Now that I have failed to wholeheartedly offer my talents, and have caused Your Majesty to discard statutes and systems, I have committed a grave official offense. I request to be dismissed from my post as Imperial Secretary for Communications."