If it ain't broke, don't fix it
Meaning: If something is not faulty or damaged, don't try to repair it.Note: ain't (verb): [contraction of] am not, are not, is not | broke (adj.): broken; damaged; faulty | fix (verb): repair; mend | The British English equivalent of this saying is: "Let well alone."
Origin: American businessman Bert Lance (born 1931) writing in Nation's Business (1977).
Variety: This is typically used in American English but may be used in other varieties of English too.
The saying "If it ain't broke, don't fix it" implies that if your watch is running on time you should