On the occasion of Yu Yu-jen's eightieth birthday, Li Yu personally carved him a name chop to mark the anniversary. To his surprise, Mr. Yu adamantly refused to accept it and insisted on sticking to his original wornout little chop. This had once been given to him by Wu Ch'ang-shih, and no matter how battered it became he was determined never to change to another so long as he lived.
李猷在于右任先生八十大壽之際，曾親自冶姓名印一方以為賀禮，不料于先生堅辭不受，只願用原來那方破舊的小印，因為那是于老摯友吳昌碩相贈之物，無論其形貌是否有損，有生之年，他不再換印。