Be a man of rules.

We must obey the rules in everything we do, because the ancients said: If we don't obey the rules, we can't be Fiona Fang.

Abide by certain rules

Explanation:

Gauge: compass; Moment: A ruler. Metaphor means to follow certain rules when doing things.

Source:

Zou in the Warring States Period wrote Mencius on Li Lou: "If you leave Lou Ziming, you will lose your son. If you don't obey the rules, it is not Fiona Fang. "

Idiom grammar:

Complex sentence patterns; As predicates and clauses; Metaphor means to follow certain rules when doing things.