启功先生曾任北师大博士生导师,深受全校师生的崇敬和爱戴,见面时大家总尊称他为“博导”。对此,启功先生曾自我调侃道:“老朽垂垂老矣,不仅一‘拨’就‘倒’,还一‘驳’就 Mr. Qigong was a tutor of doctoral tutor at Beijing Normal University and was deeply admired and loved by teachers and students of the whole school. When he met, he always proclaimed him a “PhD supervisor.” In response, Mr. Qigong once self-ridicule: "old and worn old, not only a 'dial' on the 'down', but also a 'barge' on