Mind your own business

Origin

During the Enlightenment, as ideas of individualism and personal liberty gained prominence, the concept of respecting others' private affairs became a cornerstone of social conduct. Benjamin Franklin, a keen observer of human nature and a proponent of self-reliance, popularized the sentiment through his almanacs and public writings. He even notably championed the phrase as a clear directive to citizens, reinforcing the burgeoning nation's emphasis on personal responsibility and non-interference, firmly embedding the sentiment in the English lexicon.