I recall a professor of mine once mentioning an economic parable that stated "Everything (Probably) exists/happens for a reason) The parable used the metaphor of a fence in an abandoned field. If a traveler came across the fence, he would be better served leaving it stand, as someone more-likely-than-not built the fence there to serve some purpose. While that purpose is unknown, and may no longer exist, the chance that it does mandates the traveler to leave the fence standing, and not tear it down. The philosopher then applied this to economic institutions.
Is anyone familiar with this parable? If there is an exact reference to the thinker who stated it?
Thanks in advance.