My mind has changed during the last twenty or thirty years. Now for many years I cannot endure to read a line of poetry. I have also almost lost my taste for pictures or music. My mind seems to have become a kind of machine for grinding general laws out of large collections of facts.
     If I had to live my life again, I would have made a rule to read some poetry and listen to some music at least once every week. The loss of these tastes is a loss of happiness.

—Charles Darwin

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