
„Thousands of tired, nerve-shaken, over-civilized people are beginning to find out that going to the mountains is going home; that wildness is a necessity; and that mountain parks and reservations are useful not only as fountains of timber and irrigating rivers, but as fountains of life.“
— John Muir, книга Our National Parks
Источник: 1900s, Our National Parks (1901), chapter 1: The Wild Parks and Forest Reservations of the West