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Zhe shi yi ben ning jing, tian dan, chong man zhi hui de shu. qi zhong fen xi sheng huo, pi pan xi su chu, yu yu jing ren, zi zi shan guang, jian jie du te, nai ren xun wei. xu duo pian ye shi xing xiang miao hui, you mei xi zhi, xiang hu shui ban chun jie tou ming, xiang shan lin de mao mi cui lü, ye you yi xie pian ye shuo li tou che, shi fen jing pi, gei ren qi di.

Wilderness areas --- Natural history --- Solitude. --- Walden Woods (Mass.) --- Social life and customs.