english
1
general::
Phrase(s): let well enough alone [and] leave well enough alone to leave things as they are (and not try to improve them). • There isn’t much more you can accomplish here. Why don’t you just let well enough alone? • This is as good as I can do. I’ll stop and leave well enough alone.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
see LEAVE WELL ENOUGH ALONE.
American Heritage Idioms