《文心雕龙·章表》
臣下对帝王常称：再三叩头、报答美命、敬受册封、敢当重任等，这些虽是口讲笔写兼用，但陈辞谢恩之义是明显的。
再拜稽首，对扬休命，承文受册，敢当丕显。虽言笔未分，而陈谢可见。
The ministers to the emperor always said: kowtow three times, appreciate your appreciation, receive the ennoblement respectfully, and dare to take on the important task etc. Although these were both spoken and written, the meaning of expressing gratitude for the statements was obvious.