"Knowledge is only one ingredient on arriving at a stock's proper price. The other ingredient, fully as important as information, is sound judgment."

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So far I had been travelling alone with my handbook and my Western Railway timetable: I was happiest finding my own way and did not require a liaison man. It had been my intention to stay on the train, without bothering about arriving anywhere: sight-seeing was a way of passing the time, but, as I had concluded in Istanbul, it was an activity very largely based on imaginative invention, like rehearsing your own play in stage sets from which all the actors had fled.

— Paul Theroux