When we have acquired the habit of impersonal thinking we shall be able to view the popular beliefs of our own nation, our own class, or our own religious sect with the same detachment with which we view those of others. We shall discover that the beliefs that are held most firmly and most passionately are very often those for which there is least evidence. When one large body of men believes A, and another large body of men believes B, there is a tendency of each body to hate the other for believing anything so obviously absurd.
Source: Bertrand Russell: A Philosophy of Our Time (1953)
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