the.com/rule

A line drawn by someone hoping you'll forget they drew it.

means A stated principle or instruction that governs conduct, procedure, or what counts as correct — or, as a verb, to exercise authority over something.

from From Latin 'regula,' a straight stick or ruler, the carpenter's tool for keeping a line true — itself from 'regere,' to lead straight or direct (a cousin of 'regent,' 'regular,' and 'regime'). It traveled through Old French 'reule' into English, so the very word carries the image of a straightedge: a rule is literally something laid down to keep you from wandering off the line.

latin root
Regula meant a straight stick for measuring
of thumb
Likely from brewers gauging beer heat by touch
golden one
Appears in nearly every major religion independently
the exception
Proving rules is a mistranslation of testing them
for instance

rule britannia — british patriotic song first performed in 1740, asserting british naval dominance

golden rule — ethical principle found in christianity, islam, judaism, buddhism, and confucianism across cultures

rule 34 — internet meme from 4chan circa 2006 stating explicit content exists for any topic

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