Mark Twain,
Roughing It — Chapter XXVII
(1872)
“ Once we made twenty-five miles in a day, and once we made forty miles (through the Great American Desert) , and ten miles beyond—fifty in all—in twenty-three hours, without halting to eat, drink or rest. To stretch out and go to sleep, even on stony and frozen ground, after pushing a wagon and two horses fifty miles, is a delight so supreme that for the moment it almost seems cheap at the price. ”
