Francis Parkman (1823-1893), History of the Conspiracy of Pontiac, and the War of the North American Tribes against the English Colonies after the Conquest of Canada
(Boston: Charles C. Little and James Brown, 1851), p. 141 (from Chapter V, imagining "some lonely trapper" in the Rocky Mountains):
The rough earth is his bed, a morsel of dried meat and a draught of water are his food and drink, and death and danger his companions. No anchorite could fare worse, no hero could dare more; yet his wild, hard life has resistless charms; and, while he can wield a rifle, he will never leave it.
Albert Bierstadt (1830-1902), My Camp in the Rocky Mountains