《礼记·少仪》
接待宾客，主要要谦恭有礼；举行祭祀，主要要内心诚敬；丧事以内心悲哀为主；诸候会同时要表现敏勇的精神。
宾客主恭，祭祀主敬，丧事主哀，会同主诩。
When receiving guests, the main thing is to be modest and courteous; when holding a sacrifice, the main thing is to be sincere and respectful; when holding a funeral, the main thing is to be saddened; when the princes meet, the main thing is to be alert and brave.