"Having a bad time on a trip is helpful. “Literature is made out of the misfortunes of others,” VS Pritchett once wrote. “A large number of travel books fail because of the monotonous good luck of their authors."
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Paul Theroux, in The places in between, on Financial Times, 27th May, 2011.
[ He’s the author of Great Railway Bazaar (1974, which I recommmend) and The Tao of Travel: Enlightenments from Lives on the Road ]