"KEEP OUT OF DEBT"
This is one of 36 unusual boulders that can be found in the woods along trails in a remote section of Cape Ann, Massachusetts called "Dogtown." The Babson Boulders were commissioned by Roger Babson (of Babson College...) during the Great Depression. Roger hired unemployed stonecutters to carve inspirational inscriptions on approximately three dozen boulders in Dogtown during the Great Depression. Babson also mapped and numbered the cellar holes left from the homes of Dogtown's former residents. Other messages that were carved into the boulders... Love Your Mother, Never Try, Never Win, Kindness, Be On Time.
I haven't found all of the boulders, yet, but eventually I will!