《周礼·夏官司马·大驭&形方式》
合方氏负责使天下道路通达，使天下财物流通，使天下计数方法和称量轻重的器具统一，长度和容量的标准一致，消除国家间的仇怨，使天下的好尚相同。
合方氏掌达天下之道路，通其财利，同其数器，壹其度量，除其怨恶，同其好善。
He Fangshi is responsible for making the roads in the world accessible, for ensuring the circulation of wealth around the world, for unifying the counting methods and weights and scales in the world, for ensuring the consistency of length and volume standards, for eliminating hatred among countries, and making the tastes of the world the same.