《礼记·檀弓下》
说完以后，只叩头表示丧父之悲，而不敢像丧主那样向来使表示拜谢。
稽颡而不拜，哭而起，起而不私。
After he had finished, he only kowtowed to express his grief at the loss of his father, and he did not dare to express his gratitude to the emissary as the chief mourner did.