You don't want to know. The quote is more commonly attributed to John Steinbeck, who also wrote a (somewhat embellished) memoir / #vanlife travelogue in 1962,

You don't want to know. The quote is more commonly attributed to John Steinbeck, who also wrote a (somewhat embellished) memoir / #vanlife travelogue in 1962, called "Travels With Charley in Search of America".