《文心雕龙·征圣》
由此可见，必须有恰当的说明才能表达出文章的论点，必须抓住要点才能安排好文章的辞采。倘能这样安排文辞，就能避免单纯追求奇异的毛病；这样建立起来的论点，也就能得到辞句明确的益处了。
故知正言所以立辩，体要所以成辞，辞成无好异之尤，辩立有断辞之义。
Thus it can be seen that appropriate descriptions are needed to express the viewpoints of an article, and key points must be grasped to organize the text of an article. Arranging words and phrases in this way can avoid the fault of simply pursuing strangeness; and the viewpoints established in this way can also benefit from the clarity of sentences.