《文心雕龙·宗经》
因此，在创作上任凭诸子百家怎样驰骋活跃，归根到底总是超不出经书的范围。如果能根据经书来制定文章的格式，学习经书中的词汇来丰富语言，这就如同靠近矿山来炼铜，煎熬海水来制盐。
若禀经以制式，酌雅以富言，是仰山而铸铜，煮海而为盐也。
Therefore, no matter how scholars of various schools of thought galloped and flourished in their creations, they could not, in the end, escape the scope of the classics. If one could formulate the format of an article according to the classics and learn vocabulary from the classics to enrich one's language, it would be like approaching a mine to refine copper and boiling seawater to make salt.