1
general::
Show tolerance for those different from yourself. For example, I'm not going to tell my sister what to do? live and let live, I say. [First half of 1600s]
American Heritage Idioms
2
general::
Phrase(s): live and let live
Cliché not to interfere with other people’s business or preferences. • I don’t care what they do! Live and let live, I always say. • Your parents are strict. Mine just live and let live.
McGrawhill's American Idioms And Phrasal Verbs