He holds that it's not hard to make exact copies of ancient works, even to the point where the signatures and seals are the same, but that in such cases the craftsman reproducing the work should sign too, so there is no doubt that it is a reproduction and not a forgery.
他覺得要仿製古物的形貌到惟妙惟肖並不困難，甚至是落款也一樣，但是一個工匠在仿製作品上應該要註明某某人仿製，以區別仿製與仿冒之別。