leave well enough alone

US /liːv wɛl ɪˈnʌf əˈloʊn/
UK /liːv wɛl ɪˈnʌf əˈloʊn/
"leave well enough alone" picture
1.

괜히 건드리지 않다, 현상 유지하다

to allow a situation to remain as it is, because trying to improve it might make things worse

:
The old system works fine, so let's leave well enough alone.
오래된 시스템은 잘 작동하니, 괜히 건드리지 마세요.
I wanted to offer advice, but decided to leave well enough alone.
조언을 해주고 싶었지만, 괜히 건드리지 않기로 결정했다.