Berlin contrasted this longing for unitary truth with a fox’s sense of reality. He was adamant that even a fox’s knowledge could be solid and clear as far as it went. We are not in a fog. We can know, we can learn, we can make moral judgements. Scientific knowledge is clear. What he disputed is that science or reason can give us a final certainty that cuts to the core of reality. Most of us settle for this. Wisdom, he writes, is not surrender to illusion, but rather an acceptance of the ‘unalterable medium in which we act’, ‘the permanent relationships of things’, ‘the universal texture of
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