Famous saying: it's a pleasure to have friends coming from afar; Traditional virtue: hospitality; Practical significance: broaden your horizons and make friends.

Famous saying: when you are in a threesome, you must have a teacher; Traditional virtues: modesty and eagerness to learn; Practical significance: be good at learning from others' strengths.

Famous saying: the use of courtesy, harmony is precious; Traditional virtues: emphasizing ceremony and harmony; Practical significance: Pursuing the harmonious coexistence of man, nature and society.