The word 规矩 is formed through a vivid conceptual metaphor rooted in ancient craftsmanship. The character 规 originally depicted a compass, a tool for drawing perfect circles, while 矩 represented a carpenter's square, used for marking right angles and straight lines. Combined, they create a compound meaning that transcends the literal tools, symbolizing the essential standards, proper methods, and accepted norms for behavior, just as the physical tools provided the indispensable standards for creating order and correctness in material construction.