If your hopes and wishes are confined to yourself, or your family, or your nation, or your class, or the adherents of your creed, you will find that all your affections and all your kindly feelings are paralleled by dislikes and hostile sentiments. From such a duality in men's feelings spring almost all the major evils in human life--cruelties, oppressions, persecutions, and wars. If our world is to escape the disasters which threaten it men must learn to be less circumscribed in their sympathies.
Source: Bertrand Russell : Philosophy for Our Time (1953).
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