《孔子家语·五刑解》
能教人懂得仁爱，为父母服丧就会思念爱慕他们，举行祭礼表示人子还在不懈地赡养父母。
能教仁爱，则服丧思慕，祭祀不解人子馈养之道。
To enable people to understand loving kindness, mourning for their parents, they will miss and love them, and performing sacrificial rites signifies that the sons are still tirelessly supporting their parents.