《管子·法禁》
实行奇怪的风俗和反常的礼节，语言夸大而行为骄傲，把自己所做过的事，说得非常难做，借此以抬高自己，是圣王所要禁止的。
诡俗异礼，大言法行，难其所为，而高自错者，圣王之禁也。
It is punishable for a ruler to practice strange customs and perverse etiquette, have exaggerated language and arrogant behavior, describe his deeds as extremely difficult, and use this to elevate himself.