这好比从官窑烧制出来的一件陶器，或许是一家普通人家里的器皿甚至官宦之家的夜壶，而涂上一层釉，诗人写一首诗，画家作一幅画，摄影师拍摄一张照片，挂在宣传橱窗里做广告，或许是这件瓷器身价倍增冠冕堂皇地进入富贵人家的客厅或者博物馆，但是它的本质还是一件陶器或瓷器。
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