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English definition of “if it/a thing is worth doing, it's worth doing well”

if it/a thing is worth doing, it's worth doing well

saying
used to emphasize that if you are going to spend time doing a piece of work, you should do it as well as possibleSucceeding, achieving and fulfilling
(Definition of if it/a thing is worth doing, it's worth doing well from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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