Charles Robert Darwin, (; 12 February 1809 – 19 April 1882) was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. He established that all species of life have descended over time from common ancestors and, in a joint publication with Alfred Russel Wallace, introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.
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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.
We look for medicine to be an orderly field of knowledge and procedure. But it is not. It is an imperfect science, an enterprise of constantly changing knowledge, uncertain information, fallible individuals, and at the same time lives on the line. There is science in what we do, yes, but also habit, intuition, and sometimes plain old guessing. The gap between what we know and what we aim for persists. And this gap complicates everything we do.