Literature Reference: 亿万持衡价，锱铢挟契论。—— 《昔事文皇帝三十二韵》 Weighing billions with balance, discussing trifles with contracts. Source from 'Thirty-two Rhymes on Past Service to Emperor Wen'.
锱: Ancient unit of measurement for weight.
铢: Feather-light in weight.
Meaning: Originally referring to the smallest unit of weight, it symbolizes attention to detail and the wisdom of careful calculation.