Sherlock Holmes, it may be remembered, picked up a hat which he happened to find lying in the street. After looking at it for a moment he remarked that its owner had come down in the world as the result of drink, and that his wife was no longer so fond of him as she used to be. Life could never be boring to a man to whom casual objects offered such a wealth of interest.
Source: The Conquest of Happiness, 1930, Chap.6:Envy, by Bertrand Russell.
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