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“quieta non movere”
Quieta non movere.
Not to disturb quiet things.
Better translated as "Don't disturb things that are at peace"; and by extension: "Let sleeping dogs lie."
There are those now who say, "If it isn't broken, don't try to fix it." Then there are the slang-mongers who say, "If it ain't broke, don't fix it."
This entry is located in the following units:
Latin Proverbs, Mottoes, Phrases, and Words: Group Q
mot-, moto-, -motile, -motility, -motorial, -motoric, -motive, -motored; mov-
quies-, -quiet-, -quit-