《孔子家语·六本》
看到这些，如果在路上行走就要让长者先行，不抢先；如果坐在车上，遇到三个人就要下车，遇到两个人就要扶着车前横木致敬。调节盈满和虚空，不自我满足，所以能够长久。 
满也。如在舆遇三人则下之，遇二人则式之，调其盈虚，不令自满，所以能久也。 
Seeing this, if you are walking on the road, let the elders go first, not first; if you are sitting in a car, if you meet three people, you should get off the car, and if you meet two people, you should hold the horizontal beam in front of the car. Pay homage. Regulate fullness and emptiness, and don't be self-satisfied, so you can last a long time.