the.com/principles
The rules you'd never break, until breaking them gets profitable.
means Fundamental beliefs or values that guide how a person, system, or argument behaves.
from From Latin principium, beginning or foundation, itself from princeps, the first one to take a thing in hand.
Physics tooUncertainty and least action are principles, not opinions.
NegotiablePeople claim them most loudly while bending them.
Versus rulesPrinciples explain why; rules just say no.