Benedict Freedman said this quote

Every night we stopped in a cabin where wood had been stacked, matches left, and canned goods laid out for the chance traveler. All the unknown host received in return was a scribbled note giving our thanks, any news we could think of, and our names. This whole system of northern hospitality was a gigantic chain, for while we were eating this man’s beans, he was undoubtedly farther up the trail, eating somebody else’s.