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Have you ever wondered what it would be like to live your life off the grid? Have you wished you could shed the complications of modern society and live in the wilderness, using only the things nature has provided? Meet Eustace Conway, Tom Oar and Marty Meierotto, three men who have devoted their lives to survival in its simplest form. But how simple is it really? From the rugg...。讲述抗日战争时期北平图书馆善本南迁；郑振铎等人“孤岛”搜购江南文献；清华大学古籍西迁；浙江文澜阁《四库全书》转运贵州；八路军抢救《赵城金藏》；山东省图书馆珍贵古籍密藏乐山等故事。。