《文心雕龙·养气》
战国时代思想产生分歧和好诡诈的特征，出现专门研究奇谲道理和粉饰游说的言辞文章。从汉代到今天，人们对用来修饰的文辞每天都力求新奇，相互之间竞逐光华，炫耀才华，心思也用空了。
战代技诈，攻奇饰说，汉世迄今，辞务日新，争光鬻采，虑亦竭矣。
In the Warring States Period, thoughts showed different characteristics, such as disagreement and deceit, and articles and speeches that specialized in studying strange and bizarre principles and embellishing persuasion appeared. From the Han Dynasty to the present day, people have been striving for novelty in the rhetoric used for decoration every day, competing with each other for brilliance and showing off their talents, and their minds have also been exhausted.